Detailed Specs Comparison

Lenovo ThinkCentre M90a Gen 2 vs. Dell Optiplex 5490 All-in-One

Here is a side by side comparison between Lenovo ThinkCentre M90a Gen 2 and Dell Optiplex 5490 All-in-One specs including price, processors, memory, graphics, storage, ports, and more.

Specs Comparison

Lenovo ThinkCentre M90a Gen 2 image
Lenovo ThinkCentre M90a Gen 2
Dell Optiplex 5490 All-in-One image
Dell Optiplex 5490 All-in-One

Key Features

What's new
  • Up to 23.8” FHD Touch Display with optional PrivacyGuard.
  • Intel® Q570 Chipset.
  • Supports 10th Generation Intel® Comet Lake Desktop Processors.
  • Supports 11th Generation Intel® Rocket Lake Desktop Processors.
  • Up to 11th Gen Intel® Core™ i9-11900
    8C/16T, 2.50 → 5.20 GHz, 16MB SmartCache, 65W TDP.
  • Up to AMD Radeon™ 630 with 2GB GDDR5 VRAM.
  • Up to 1TB NVMe PCIe Gen 4.0 x4 SSD.
  • Up to 2 x 2TB 2.5” HDD.
  • Up to 64GB dual-channel 3200MHz DDR4 Memory.
  • More Features
    • 2 x 3W stereo speakers with Dolby® Atmos™ support.
    • Up to Wi-Fi 6 and Bluetooth 5.2.
    • Optional 5.0-megapixel front-facing camera.
    • Optional Windows Hello IR camera.
    • MIL-STD-810H military test passed.
    • Toolless cover and stand assembly/removal.
  • Up to 23.8” FHD with Touch Monitor.
  • New 10th and 11th Gen Intel Core Processors.
  • Up to 35W Intel Core i7-11700T (8 cores/16 threads, up to 4.60 GHz).
  • Up to 65W Intel Core i7-11700 (8 cores/16 threads, up to 4.90 GHz).
  • Up to NVIDIA® GeForce® GTX 1650, (4GB GDDR6).
  • Up to 64GB 3200MHz DDR4 memory
  • Up to 2TB PCIe Gen 3 x4 and Gen 4 x4 NVMe SSD.
  • Up to 2TB 2.5” 7200rpm HDD.
  • Built-in Infrared Camera for Windows Hello Sign-in.

Availability

Lenovo ThinkCentre M90a Gen 2Dell Optiplex 5490 All-in-One
Released20212021
Release InfoAnnounced on October 12, 2021.Announced on May 28, 2021.
Pricing10th Gen Intel Processor
  • $1,598.57
    i5-10500T 8GB 500GB 2.5” HDD 155W PSU Wi-Fi 6
  • $1,655.71
    i5-10500T 8GB 128GB M.2 155W PSU Wi-Fi 6
  • $1,770.00
    i5-10500T 16GB 256GB M.2 155W PSU Wi-Fi 6
  • $1,984.29
    i5-10700T 16GB 256GB M.2 155W PSU Wi-Fi 6
11th Gen Intel Processor
  • $1,655.71
    i5-11500T 8GB 256GB M.2 155W PSU Wi-Fi 6
  • $1,898.57
    i5-11500T 8GB 256GB M.2 155W PSU Wi-Fi 6
  • $2,124.00
    i5-11500 8GB 128GB M.2 GTX 1650 220W PSU Wi-Fi 5
  • $2,239.00
    i5-11500 8GB 256GB M.2 GTX 1650 220W PSU Wi-Fi 6
Applicable Models
  • 2021 Lenovo ThinkCentre M90a
  • Lenovo ThinkCentre M90a Gen 2
  • Lenovo ThinkCentre M90a AIO Gen 2
  • Lenovo ThinkCentre M90a All-in-One Gen 2
Generations
Lenovo ThinkCentre M90a All-in-One Gen 2 Price
Lenovo ThinkCentre M90a All-in-one Business Computer, 23.8" FHD IPS Display, Intel Core i5 Processor, Wi-Fi, Webcam, USB-C, SD Card Reader, Windows 11 Pro (16GB RAM | 512GB SSD)
Lenovo ThinkCentre M90a All-in-one Business Computer, 23.8" FHD IPS Display, Intel Core i5 Processor, Wi-Fi, Webcam, USB-C, SD Card Reader, Windows 11 Pro (16GB RAM | 512GB SSD)
By Lenovo
$669.99
Lenovo ThinkCentre M90a | Business All in One Desktop | 23.8" FHD IPS Display | 16GB RAM | 1.5 TB Storage (512GB SSD with 1TB HDD) | Intel Core i5 Processor | FHD Webcome | Wi-Fi 6 | Win 11 Pro
Lenovo ThinkCentre M90a | Business All in One Desktop | 23.8" FHD IPS Display | 16GB RAM | 1.5 TB Storage (512GB SSD with 1TB HDD) | Intel Core i5 Processor | FHD Webcome | Wi-Fi 6 | Win 11 Pro
By Lenovo
$799.99
Lenovo ThinkCentre M90a Business All-in-one Computer, 23.8" FHD IPS Display, Intel Core i5-10400 Processor, Wi-Fi, Webcam, USB-C, SD Card Reader, Windows 11 Pro (32GB RAM | 1TB SSD)
Lenovo ThinkCentre M90a Business All-in-one Computer, 23.8" FHD IPS Display, Intel Core i5-10400 Processor, Wi-Fi, Webcam, USB-C, SD Card Reader, Windows 11 Pro (32GB RAM | 1TB SSD)
By Lenovo
$729.99
Dell Optiplex 5490 All-in-One Price
Dell OptiPlex 7000 7490 All-in-One Computer - Intel Core i7 10th Gen i7-10700 Octa-core (8 Core) 2.90 GHz - 16 GB RAM DDR4 SDRAM - 256 GB M.2 PCI Express NVMe SSD - 23.8" Full HD 1920 x 1080 -
Dell OptiPlex 7000 7490 All-in-One Computer - Intel Core i7 10th Gen i7-10700 Octa-core (8 Core) 2.90 GHz - 16 GB RAM DDR4 SDRAM - 256 GB M.2 PCI Express NVMe SSD - 23.8" Full HD 1920 x 1080 -
By Dell
$1,198.00
Dell Optiplex 5000 5490 AIO (2021) | 23.8" FHD | Core i5-512GB SSD - 16GB RAM | 6 Cores @ 4 GHz - 10th Gen CPU Win 10 Home (Renewed)
Dell Optiplex 5000 5490 AIO (2021) | 23.8" FHD | Core i5-512GB SSD - 16GB RAM | 6 Cores @ 4 GHz - 10th Gen CPU Win 10 Home (Renewed)
By Dell
$588.98
Dell Optiplex 5490 AIO | 23.8" 1920x1080 FHD | Core i5-10500T - 500GB HDD Hard Drive - 8GB RAM | 6 cores @ 3.8 GHz Win 10 Home
Dell Optiplex 5490 AIO | 23.8" 1920x1080 FHD | Core i5-10500T - 500GB HDD Hard Drive - 8GB RAM | 6 cores @ 3.8 GHz Win 10 Home
By Dell
$994.83

Display

Lenovo ThinkCentre M90a Gen 2Dell Optiplex 5490 All-in-One
Size23.8 Inches23.8 Inches
Info
  • 23.8” FHD Display
    250 nits, non-touch.
  • 23.8” FHD PrivacyGuard Display
    350 nits, non-touch.
  • 23.8” FHD Touch Display
    250 nits, multi-touch.
  • All Configurations
    1920 x 1080, 16:9, IPS panel, 1000:1 contrast ratio, +/- 89° viewing angle, borderless design, low blue light mode, anti-glare surface.
  • 23.8” FHD Non-Touch
    1920 x 1080 92 PPI 16:9 250 nits 1000:1 72% NTSC 60Hz Anti-Glare 12.50W
  • 23.8” FHD with Touch
    1920 x 1080 92 PPI 16:9 250 nits 1000:1 72% NTSC 60Hz Anti-Glare 13.48W

Exterior

Lenovo ThinkCentre M90a Gen 2Dell Optiplex 5490 All-in-One
Size Comparison
Dimensions
  • 541 x 200 x 414.2-494.2 mm (21.3 x 7.9 x 16.3-19.5 inches)
    Models (with full function monitor stand, with ODD, with PrivacyGuard, with camera)
  • 541 x 200 x 414.2-494.2 mm (21.3 x 7.9 x 16.3-19.5 inches)
    Models (with full function monitor stand, with ODD, without PrivacyGuard, with camera)
  • 541 x 200 x 414.2-494.2 mm (21.3 x 7.9 x 16.3-19.5 inches)
    Models (with full function monitor stand, without ODD, with PrivacyGuard, with camera)
  • 541 x 200 x 414.2-494.2 mm (21.3 x 7.9 x 16.3-19.5 inches)
    Models (with full function monitor stand, without ODD, without PrivacyGuard, with camera)
  • Lowest in flat mode: 541 x 312.8 x 227.4 mm (21.3 x 12.3 x 9.0 inches) Highest in vertical mode: 541 x 232.7 x 467.7 mm (21.3 x 9.2 x 18.4 inches)
    Models (with UltraFlex IV stand, with ODD, without PrivacyGuard, with camera)
  • Lowest in flat mode: 541 x 312.8 x 227.4 mm (21.3 x 12.3 x 9.0 inches) Highest in vertical mode: 541 x 232.7 x 467.7 mm (21.3 x 9.2 x 18.4 inches)
    Models (with UltraFlex IV stand, without ODD, without PrivacyGuard, with camera)
  • 541 x 61.3 x 340.5 mm (21.3 x 2.4 x 13.4 inches)
    Models (without stand, with ODD, with PrivacyGuard, with camera)
  • 541 x 57.8 x 340.5 mm (21.3 x 2.3 x 13.4 inches)
    Models (without stand, with ODD, without PrivacyGuard, with camera)
  • 541 x 49.5 x 340.5 mm (21.3 x 1.9 x 13.4 inches)
    Models (without stand, without ODD, with PrivacyGuard, with camera)
  • 541 x 46 x 340.5 mm (21.3 x 1.8 x 13.4 inches)
    Models (without stand, without ODD, without PrivacyGuard, with camera)
21.26” x 13.54” x 2.07” (540.20 x 344 x 52.80 mm)
Weight
  • 8.71 kg (19.2 lbs)
    Models (with full function monitor stand, with ODD, with PrivacyGuard, with camera)
  • 7.84 kg (17.3 lbs)
    Models (with full function monitor stand, with ODD, without PrivacyGuard, with camera)
  • 8.39 kg (18.5 lbs)
    Models (with full function monitor stand, without ODD, with PrivacyGuard, with camera)
  • 7.51 kg (16.6 lbs)
    Models (with full function monitor stand, without ODD, without PrivacyGuard, with camera)
  • 8.58 kg (18.9 lbs)
    Models (with UltraFlex IV stand, with ODD, without PrivacyGuard, with camera)
  • 8.26 kg (18.2 lbs)
    Models (with UltraFlex IV stand, without ODD, without PrivacyGuard, with camera)
  • 6.45 kg (14.2 lbs)
    Models (without stand, with ODD, with PrivacyGuard, with camera)
  • 5.57 kg (12.3 lbs)
    Models (without stand, with ODD, without PrivacyGuard, with camera)
  • 6.13 kg (13.5 lbs)
    Models (without stand, without ODD, with PrivacyGuard, with camera)
  • 5.25 kg (11.6 lbs)
    Models (without stand, without ODD, without PrivacyGuard, with camera)
  • Up to 14.42 lb (6.59 kg)
    Full HD Non-Touch models.
  • Up to 13.82 lb (6.30 kg)
    Full HD with Touch models.
Colors
Black
Black
Keyboard and TrackpadKeyboard
  • Lenovo Calliope Keyboard (USB connector), black
  • Lenovo Calliope Wireless Keyboard (2.4GHz via USB receiver), black
  • Lenovo Traditional Keyboard (USB connector), black
  • No keyboard
Mouse
  • Lenovo Calliope Mouse (USB connector), black
  • Lenovo Calliope Wireless Mouse (2.4GHz via USB receiver), black
  • Lenovo Fingerprint Mouse (USB connector), Windows Hello support, black
  • No mouse
  • Dell Pro Wireless Keyboard and Mouse - KM5221W - English
  • Dell KB522 Business Multimedia Keyboard (US)
  • Dell KB813 Smart Card Keyboard (US)
  • Dell KB216 Wired Keyboard English
  • No Keyboard
PortsRight
  • 2 x USB-A
    USB 3.2 Gen 2 (10 Gbps).
  • 1 x USB-C
    USB 3.2 Gen 2 (10Gbps) with 15W (5W/3A) charging.
  • 1 x Headset jack
    3.5mm combo jack.
  • 1 x Optional SD Card Reader
Rear
  • 4 x USB-A
    3 x USB 3.2 Gen 1 (5 Gbps).
    1 x USB 3.2 Gen 1 (5 Gbps) with Smart Power On.
  • 1 x DisplayPort 1.4b
  • 1 x RJ-45
    10/100/1000 Gigabit Ethernet.
  • 1 x Power connector
  • 1 x Kensington Security Slot
  • 1 x Optional Serial port
  • 1 x Optional HDMI 2.1
Side
  • 1 x USB-A
    USB 3.2 Gen 1 (5 Gbps) with PowerShare.
  • 1 x USB-C
    USB 3.2 Gen 2 (10 Gbps).
  • 1 x Universal Audio Jack
  • 1 x SD 4.0 Card Slot
    Optional.
Rear
  • 2 x USB-A
    USB 2.0 (480 Mbps) with Smart Power On.
  • 2 x USB-A
    USB 3.2 Gen 2 (10 Gbps).
  • 1 x DisplayPort++
    DisplayPort 1.4 supports 4K@120Hz and HDCP 2.3.
  • 1 x RJ-45 
    Gigabit Ethernet.
  • 1 x Audio Jack
    Re-tasking Line out/Line in audio port.
  • 1 x Kensington Lock Slot
  • 1 x Power Connector

Chasis

Lenovo ThinkCentre M90a Gen 2Dell Optiplex 5490 All-in-One
Form FactorAll-in-OneAll-in-One
Power Supply
  • 150W Power Adapter
    89% efficiency with autosensing, for integrated graphics models.
  • 170W Power Adapter
    89% efficiency with autosensing, for discrete graphics models.
  • 155W
    80+ Bronze 85% Efficiency
  • 220W
    80+ Platinum 92% Efficiency
Bays
  • 2 x 2.5" disk bay
    2nd 2.5" HDD occupies ODD bay.
  • 1 x slim ODD bay
Optical DrivesOptional slim optical disc drive
Chasis InformationButtons
  • Power button
  • PrivacyGuard on/off button
    PrivacyGuard model only.
  • Microphone mute button
Ease of Use
  • Toolless cover and stand assembly/removal
Stand
  • Full function monitor stand, supports -5° to +30° tilt, up to 80mm lift
  • UltraFlex IV stand, supports -5° to +70° tilt, up to 164mm lift (flat mode) / up to 115mm lift (vertical mode)
  • No stand
Mounting
  • Supports VESA mount 100mm
Mil-Spec Test
  • MIL-STD-810H military test passed
    Low Pressure [Altitude], High Temperature, Low Temperature, Temperature Shock, Humidity, Sand and Dust, Vibration, Shock, Fungus, Solar Radiation.
Stands:
  • Fixed stand
  • Height Adjustable Stand
  • Height Adjustable Stand with Optical Disk Drive

Internal Specs

Lenovo ThinkCentre M90a Gen 2Dell Optiplex 5490 All-in-One
ChipsetIntel® Q570 ChipsetIntel® Q570 Chipset
Processor
  • 10th Gen Intel® Celeron® G5905
    2C/2T, 3.50 GHz, 4MB SmartCache, 58W
  • 10th Gen Intel® Celeron® G5925
    2C/2T, 3.60 GHz, 4MB SmartCache, 58W
  • 10th Gen Intel® Pentium® Gold G6405
    2C/4T, 4.10 GHz, 4MB SmartCache, 58W
  • 10th Gen Intel® Pentium® Gold G6505
    2C/4T, 4.20 GHz, 4MB SmartCache, 58W
  • 10th Gen Intel® Pentium® Gold G6605
    2C/4T, 4.30 GHz, 4MB SmartCache, 58W
  • 10th Gen Intel® Core™ i3-10105
    4C/8T, 3.70 → 4.40 GHz, 6MB SmartCache, 65W
  • 10th Gen Intel® Core™ i3-10305
    4C/8T, 3.80 → 4.50 GHz, 8MB SmartCache, 65W
  • 10th Gen Intel® Core™ i3-10325
    4C/8T, 3.90 → 4.70 GHz, 8MB SmartCache, 65W
  • 11th Gen Intel® Core™ i5-11400
    6C/12T, 2.60 → 4.40 GHz, 12MB SmartCache, 65W
  • 11th Gen Intel® Core™ i5-11500
    6C/12T, 2.70 → 4.60 GHz, 12MB SmartCache, 65W
  • 11th Gen Intel® Core™ i5-11600
    6C/12T, 2.80 → 4.80 GHz, 12MB SmartCache, 65W
  • 11th Gen Intel® Core™ i7-11700
    8C/16T, 2.50 → 4.90 GHz, 16MB SmartCache, 65W
  • 11th Gen Intel® Core™ i9-11900
    8C/16T, 2.50 → 5.20 GHz, 16MB SmartCache, 65W
  • 10th Gen Intel® Pentium® Gold G6405T
    2C/4T, 3.50 GHz, 4MB SmartCache, 35W
  • 10th Gen Intel® Core™ i3-10105T
    4C/8T, 3.00 → 3.90 GHz, 6MB SmartCache, 35W
  • 10th Gen Intel® Core™ i3-10305T
    4C/8T, 3.00 → 4.00 GHz, 8MB SmartCache, 35W
  • 10th Gen Intel® Core™ i5-10500T
    6C/12T, 2.30 → 3.80 GHz, 12MB SmartCache, 35W
  • 10th Gen Intel® Core™ i5-10600T
    6C/12T, 2.40 → 4.00 GHz, 12MB SmartCache, 35W
  • 10th Gen Intel® Core™ i7-10700T
    8C/16T, 2.00 → 4.50 GHz, 16MB SmartCache, 35W
  • 11th Gen Intel® Core™ i5-11400T
    6C/12T, 1.30 → 3.70 GHz, 12MB SmartCache, 35W
  • 11th Gen Intel® Core™ i5-11500T
    6C/12T, 1.50 → 3.90 GHz, 12MB SmartCache, 35W
  • 11th Gen Intel® Core™ i5-11600T
    6C/12T, 1.70 → 4.10 GHz, 12MB SmartCache, 35W
  • 11th Gen Intel® Core™ i7-11700T
    8C/16T, 1.40 → 4.60 GHz, 16MB SmartCache, 35W
  • 10th Gen Intel® Pentium® Gold G6405
    2C/4T, 4.10 GHz, 4MB SmartCache, 58W
  • 10th Gen Intel® Core™ i3-10105
    4C/8T, 3.70 → 4.40 GHz, 6MB SmartCache, 65W
  • 10th Gen Intel® Core™ i3-10305
    4C/8T, 3.80 → 4.50 GHz, 8MB SmartCache, 65W
  • 10th Gen Intel® Core™ i5-10500
    6C/12T, 3.10 → 4.50 GHz, 12MB SmartCache, 65W
  • 10th Gen Intel® Core™ i5-10505
    6C/12T, 3.20 → 4.60 GHz, 12MB SmartCache, 65W
  • 10th Gen Intel® Core™ i5-10600
    6C/12T, 3.30 → 4.80 GHz, 12MB SmartCache, 65W
  • 10th Gen Intel® Core™ i7-10700
    8C/16T, 2.90 → 4.80 GHz, 16MB SmartCache, 65W
  • 11th Gen Intel® Core™ i5-11400
    6C/12T, 2.60 → 4.40 GHz, 12MB SmartCache, 65W
  • 11th Gen Intel® Core™ i5-11500
    6C/12T, 2.70 → 4.60 GHz, 12MB SmartCache, 65W
  • 11th Gen Intel® Core™ i5-11600
    6C/12T, 2.80 → 4.80 GHz, 12MB SmartCache, 65W
  • 11th Gen Intel® Core™ i7-11700
    8C/16T, 2.50 → 4.90 GHz, 16MB SmartCache, 65W
Integrated Graphics
  • 10th Gen Intel® Celeron® G5905
    Intel® UHD Graphics 610
    350 → 1050 MHz
  • 10th Gen Intel® Celeron® G5925
    Intel® UHD Graphics 610
    350 → 1050 MHz
  • 10th Gen Intel® Pentium® Gold G6405
    Intel® UHD Graphics 610
    350 → 1050 MHz
  • 10th Gen Intel® Pentium® Gold G6505
    Intel® UHD Graphics 630
    350 → 1100 MHz
  • 10th Gen Intel® Pentium® Gold G6605
    Intel® UHD Graphics 630
    350 → 1100 MHz
  • 10th Gen Intel® Core™ i3-10105
    Intel® UHD Graphics 630
    23 Execution Units, 350 → 1100 MHz
  • 10th Gen Intel® Core™ i3-10305
    Intel® UHD Graphics 630
    23 Execution Units, 350 → 1150 MHz
  • 10th Gen Intel® Core™ i3-10325
    Intel® UHD Graphics 630
    23 Execution Units, 350 → 1150 MHz
  • 11th Gen Intel® Core™ i5-11400
    Intel® UHD Graphics 730
    24 Execution Units, 350 → 1300 MHz
  • 11th Gen Intel® Core™ i5-11500
    Intel® UHD Graphics 750
    32 Execution Units, 350 → 1300 MHz
  • 11th Gen Intel® Core™ i5-11600
    Intel® UHD Graphics 750
    32 Execution Units, 350 → 1300 MHz
  • 11th Gen Intel® Core™ i7-11700
    Intel® UHD Graphics 750
    32 Execution Units, 350 → 1300 MHz
  • 11th Gen Intel® Core™ i9-11900
    Intel® UHD Graphics 750
    32 Execution Units, 350 → 1300 MHz
  • 10th Gen Intel® Pentium® Gold G6405T
    Intel® UHD Graphics 610
    350 → 1050 MHz
  • 10th Gen Intel® Core™ i3-10105T
    Intel® UHD Graphics 630
    23 Execution Units, 350 → 1100 MHz
  • 10th Gen Intel® Core™ i3-10305T
    Intel® UHD Graphics 630
    23 Execution Units, 350 → 1100 MHz
  • 10th Gen Intel® Core™ i5-10500T
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1150 MHz
  • 10th Gen Intel® Core™ i5-10600T
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1200 MHz
  • 10th Gen Intel® Core™ i7-10700T
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1200 MHz
  • 11th Gen Intel® Core™ i5-11400T
    Intel® UHD Graphics 730
    24 Execution Units, 350 → 1200 MHz
  • 11th Gen Intel® Core™ i5-11500T
    Intel® UHD Graphics 750
    32 Execution Units, 350 → 1200 MHz
  • 11th Gen Intel® Core™ i5-11600T
    Intel® UHD Graphics 750
    32 Execution Units, 350 → 1300 MHz
  • 11th Gen Intel® Core™ i7-11700T
    Intel® UHD Graphics 750
    32 Execution Units, 350 → 1300 MHz
  • 10th Gen Intel® Pentium® Gold G6405
    Intel® UHD Graphics 610
    350 → 1050 MHz
  • 10th Gen Intel® Core™ i3-10105
    Intel® UHD Graphics 630
    23 Execution Units, 350 → 1100 MHz
  • 10th Gen Intel® Core™ i3-10305
    Intel® UHD Graphics 630
    23 Execution Units, 350 → 1150 MHz
  • 10th Gen Intel® Core™ i5-10500
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1150 MHz
  • 10th Gen Intel® Core™ i5-10505
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1200 MHz
  • 10th Gen Intel® Core™ i5-10600
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1200 MHz
  • 10th Gen Intel® Core™ i7-10700
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1200 MHz
  • 11th Gen Intel® Core™ i5-11400
    Intel® UHD Graphics 730
    24 Execution Units, 350 → 1300 MHz
  • 11th Gen Intel® Core™ i5-11500
    Intel® UHD Graphics 750
    32 Execution Units, 350 → 1300 MHz
  • 11th Gen Intel® Core™ i5-11600
    Intel® UHD Graphics 750
    32 Execution Units, 350 → 1300 MHz
  • 11th Gen Intel® Core™ i7-11700
    Intel® UHD Graphics 750
    32 Execution Units, 350 → 1300 MHz
Discrete GraphicsOptional AMD Radeon™ 630 with 2GB GDDR5 VRAMOptional NVIDIA® GeForce® GTX 1650 - 4GB GDDR6
Memory
4GB 8GB 16GB 32GB 64GB
  • Memory Slots: 2 x SO-DIMM slots
  • Memory Type: Single or Dual Channel Non-ECC DDR4 Memory
  • Memory Speed:
    • 2666 MHz for 10th Gen Intel CPU
    • 3200 MHz for 11th Gen Intel CPU
  • Memory Per Slot:
    4GB 8GB 16GB 32GB
  • Memory Slots: 2 SO-DIMM slots
  • Memory Type: Single or Dual Channel DDR4 Memory
  • Memory Speed:
    2666MHz 2933MHz 3200MHz
Memory Configurations
4GB 8GB 16GB 32GB 64GB
2666 MHz for 10th Gen Intel Core i3/i5 CPU
2933 MHz for 10th Gen Intel Core i7/i9 CPU
3200 MHz for 11th Gen Intel Core CPU
Storage
  • 128GB 256GB 512GB 1TB
    M.2 PCIe 3.0 x 4 or 4.0 x 4  NVME SSD.
  • 1TB 2TB
    5.4K or 7.2K rpm 2.5” SATA HDD.
  • 256GB 512GB 1TB 2TB
    M.2 PCIe Gen 3 x4 or Gen 4 x4 NVME SSD
  • 500GB 1TB 2TB
    5400 rpm or 7200 rpm 2.5" SATA Hard Drive
SlotsExpansion Slots
  • No Expansion Slot
SATA
  • 2 x SATA slots
    For 2.5-inch HDD/SSD/ODD.
M.2
  • 1 x M.2 2230 slot
    For WiFi and Bluetooth combo card
  • 1 x M.2 2242/2080 slot
    PCIe 3.0 x 4 SSD
Expansion Slots
  • No Expansion slot
SATA
  • 1 x 2.5” HDD Connector
M.2
  • 1 x M.2 2230 slot
    For WiFi and Bluetooth combo card
  • 1 x M.2 2230/2280 slot
    For SSD.

Connectivity

Lenovo ThinkCentre M90a Gen 2Dell Optiplex 5490 All-in-One
Wi-Fi
  • Realtek RTL8822CE, 802.11ac Dual Band 2x2 Wi-Fi® + Bluetooth 5.0, M.2 card
  • Intel Wireless-AC 9560, 802.11ac Dual Band 2x2 Wi-Fi + Bluetooth 5.1, Intel vPro technology support, M.2 card
  • Intel Wireless-AC 9560, 802.11ac Dual Band 2x2 Wi-Fi + Bluetooth 5.1, M.2 card
  • Intel Wi-Fi 6 AX201, 802.11ax 2x2 Wi-Fi + Bluetooth 5.2, Intel vPro technology support, M.2 Card
  • Intel Wi-Fi 6 AX201, 802.11ax 2x2 Wi-Fi + Bluetooth 5.2, M.2 Card No WLAN and Bluetooth
  • Qualcomm QCA61x4a
    Up to 867 Mbps Dual band 2.4 GHz/5 GHz WiFi-5 (802.11ac) Bluetooth 5.0
  • Intel AX201
    Up to 2400 Mbps Dual band 2.4 GHz/5 GHz WiFi-6 (802.11ax) Bluetooth 5.1
Bluetooth
Bluetooth 5.0 Bluetooth 5.1 Bluetooth 5.2
Optional.
Bluetooth 5.0 Bluetooth 5.1
EthernetIntel  I219-LM Gigabit Ethernet controller
10/100/1000 Mbps, support Wake-on-LAN.
Intel i219LM Gigabit Ethernet controller
Speed: 10/100/1000 Mbps.

Software

Lenovo ThinkCentre M90a Gen 2Dell Optiplex 5490 All-in-One
OS
  • Windows 10 Home | Pro | IoT Enterprise
  • Ubuntu Linux
  • No operating system
  • Windows 10 Home Windows 10 Pro
    Upgradable to Windows 11
  • Ubuntu Linux 20.04 LTS
  • NeoKylin 7.0 (China only)
Built-in Apps
Microsoft Office 30 Day Trial

Camera & Audio

Lenovo ThinkCentre M90a Gen 2Dell Optiplex 5490 All-in-One
Camera
  • Optional Front-facing camera.
    5.0-megapixel, with ThinkShutter (physical switch on/off).
  • Optional Windows Hello IR support.
  • Full HD Webcam
    Top-mount front camera with fixed focus lens, 2.07 Megapixels (1920 x 1080 HD) at 30 fps.
  • Windows Hello Infrared Camera
    0.30 Megapixels (640 x 480) at 30 fps.
Audio
  • High Definition (HD) Audio, Realtek® ALC233 codec
  • 2 x 3W stereo speakers.
  • Dolby® Atmos® Speaker System.
  • Dual array microphone.
  • 2 x 2W Speakers
  • 2 x Microphones
  • Audio controller: Realtek ALC3246
  • Amplifier: Built-in Amplifier ALC3246
  • External Ports
    • 1 x Universal Audio Jack
      Front
    • 1 x Audio port
      Line-out audio port with re-tasking to Line-in (Rear).

Misc

Lenovo ThinkCentre M90a Gen 2Dell Optiplex 5490 All-in-One
SensorsIR Camera
SecuritySecurity Chip
  • Discrete TPM 2.0, TCG certified
Physical Locks
  • Kensington® Security Slot
Chassis Intrusion Switch
  • Chassis intrusion switch
  • No chassis intrusion switch
Fingerprint Reader
  • Touch style fingerprint reader on mouse
  • No fingerprint reader
Other Security
  • Optional ThinkShutter camera cover
BIOS Security
  • Administrator password
  • Power-on password
  • Hard disk password
  • Boot sequence control
  • Boot without keyboard and mouse
  • Self-healing BIOS
  • Smart USB protection (allows keyboard/mouse only, blocks all storage devices)
  • Individual USB port disablement
  • Kensington lock
  • Dell Lockable port cover (optional)
  • Chassis lock slot support
  • Noble Custom AIO Plate Lock (optional)
  • Supply chain tamper alerts
  • Chassis intrusion switch
  • Trusted Platform Module (Discrete TPM Enabled)
  • SafeBIOS including Dell Off-host BIOS Verification
  • BIOS Resilience
  • BIOS Recovery, and additional BIOS Controls
  • SafeID including Trusted Platform Module (TPM) 2.0
  • Self-Encrypting Drives (SED)
  • Smart card keyboard (FIPS)
  • D-Pedigree (Secure Supply Chain Functionality)
  • Dell wired mouse with fingerprinter reader
Warranty
  • 1-year limited onsite service
  • 3-year limited onsite service
  • No base warranty
3-Year Basic Onsite Service

Lenovo ThinkCentre M90a Gen 2 vs. Dell Optiplex 5490 All-in-One

The Lenovo ThinkCentre M90a Gen 2 and the Dell Optiplex 5490 All-in-One were released in the same year, 2021. Both systems share the same all-in-one form factor that combines all components and a built-in monitor into one package.

Processor

The Central Processing Unit (CPU) is like the brains of your desktop computer. Its performance determines how fast and responsive your PC is. Generally, a processor with newer architecture, more CPU cores, higher TDP (measured in W), and faster clock speed (measured in GHz) tends to be more expensive and run faster than others with older architecture, fewer CPU cores, lower TDP, and lower clock speed.

For Lenovo ThinkCentre M90a Gen 2, you have options to configure it with a 58W 10th Generation Intel Comet Lake dual-core Intel Celeron G5905 up to a 65W 8-core Intel Core i9-11900 with a boost speed up to 5.20 GHz.

While Dell Optiplex 5490 All-in-One has configurations with a 35W 10th Generation Intel Comet Lake dual-core Intel Pentium Gold G6405T up to a 65W 8-core Intel Core i7-11700 with a boost speed up to 4.90 GHz.

Memory

The Random Access Memory or RAM is the super-fast and temporary storage used to handle all active tasks, apps, and games that will go away when your PC turns off. The more memory your PC has, the better multitasking your PC can handle without having to reload data from slower permanent storage that includes the hard disk drive or solid-state drive.

Both PCs have the same amount of two RAM slots meaning that you upgrade later if you are unsatisfied with the amount of memory on your PC. You can upgrade memory on both systems up to 64GB of 3200MHz dual-channel DDR4 memory.

Ports

Computer ports are the interface for connecting your PC to its peripheral devices or other PCs. The most common peripherals are keyboard, mouse, monitor, flash drive, speaker, and printer. Most of them use Universal Serial Bus (USB) as their connection to your computer. So the PC with more USB ports can connect to more peripherals at the same time.

There is a total number of 7 USB ports available on the Lenovo ThinkCentre M90a Gen 2, one more than the Dell Optiplex 5490 All-in-One that has only 6 USB ports. On top of the number of USB ports, the type and version of each USB port are also necessary for determining how fast it is.

The Lenovo ThinkCentre M90a Gen 2 has six USB Type-A ports and one USB Type-C port. It has four ports that support USB 3.2 Gen 1 (5 Gbps) and three ports that support USB 3.2 Gen 2 (10 Gbps).

For Dell Optiplex 5490 All-in-One, it has five USB Type-A ports and one USB Type-C port. The PC has two ports that support USB 2.0 (480 Mbps), one port that supports USB 3.2 Gen 1 (5 Gbps), and three ports that support USB 3.2 Gen 2 (10 Gbps).

Pricing

Lenovo ThinkCentre M90a All-in-One Gen 2 Price
Lenovo ThinkCentre M90a All-in-one Business Computer, 23.8" FHD IPS Display, Intel Core i5 Processor, Wi-Fi, Webcam, USB-C, SD Card Reader, Windows 11 Pro (16GB RAM | 512GB SSD)
Lenovo ThinkCentre M90a All-in-one Business Computer, 23.8" FHD IPS Display, Intel Core i5 Processor, Wi-Fi, Webcam, USB-C, SD Card Reader, Windows 11 Pro (16GB RAM | 512GB SSD)
By Lenovo
$669.99
Lenovo ThinkCentre M90a | Business All in One Desktop | 23.8" FHD IPS Display | 16GB RAM | 1.5 TB Storage (512GB SSD with 1TB HDD) | Intel Core i5 Processor | FHD Webcome | Wi-Fi 6 | Win 11 Pro
Lenovo ThinkCentre M90a | Business All in One Desktop | 23.8" FHD IPS Display | 16GB RAM | 1.5 TB Storage (512GB SSD with 1TB HDD) | Intel Core i5 Processor | FHD Webcome | Wi-Fi 6 | Win 11 Pro
By Lenovo
$799.99
Lenovo ThinkCentre M90a Business All-in-one Computer, 23.8" FHD IPS Display, Intel Core i5-10400 Processor, Wi-Fi, Webcam, USB-C, SD Card Reader, Windows 11 Pro (32GB RAM | 1TB SSD)
Lenovo ThinkCentre M90a Business All-in-one Computer, 23.8" FHD IPS Display, Intel Core i5-10400 Processor, Wi-Fi, Webcam, USB-C, SD Card Reader, Windows 11 Pro (32GB RAM | 1TB SSD)
By Lenovo
$729.99
Dell Optiplex 5490 All-in-One Price
Dell OptiPlex 7000 7490 All-in-One Computer - Intel Core i7 10th Gen i7-10700 Octa-core (8 Core) 2.90 GHz - 16 GB RAM DDR4 SDRAM - 256 GB M.2 PCI Express NVMe SSD - 23.8" Full HD 1920 x 1080 -
Dell OptiPlex 7000 7490 All-in-One Computer - Intel Core i7 10th Gen i7-10700 Octa-core (8 Core) 2.90 GHz - 16 GB RAM DDR4 SDRAM - 256 GB M.2 PCI Express NVMe SSD - 23.8" Full HD 1920 x 1080 -
By Dell
$1,198.00
Dell Optiplex 5000 5490 AIO (2021) | 23.8" FHD | Core i5-512GB SSD - 16GB RAM | 6 Cores @ 4 GHz - 10th Gen CPU Win 10 Home (Renewed)
Dell Optiplex 5000 5490 AIO (2021) | 23.8" FHD | Core i5-512GB SSD - 16GB RAM | 6 Cores @ 4 GHz - 10th Gen CPU Win 10 Home (Renewed)
By Dell
$588.98
Dell Optiplex 5490 AIO | 23.8" 1920x1080 FHD | Core i5-10500T - 500GB HDD Hard Drive - 8GB RAM | 6 cores @ 3.8 GHz Win 10 Home
Dell Optiplex 5490 AIO | 23.8" 1920x1080 FHD | Core i5-10500T - 500GB HDD Hard Drive - 8GB RAM | 6 cores @ 3.8 GHz Win 10 Home
By Dell
$994.83

Motherboard

Dell Optiplex 5490 All-in-One System Board.

Dell Optiplex 5490 All-in-One Motherboard
Source: Dell

Popular Comparisons for Lenovo ThinkCentre M90a Gen 2

Here are the most frequently requested comparisons for Lenovo ThinkCentre M90a Gen 2:

Popular Comparisons for Dell Optiplex 5490 All-in-One

Here are the most frequently requested comparisons for Dell Optiplex 5490 All-in-One:

Lenovo ThinkCentre M90a Gen 2 FAQs

Here are some related questions you might want to know about the Lenovo ThinkCentre M90a Gen 2:

  1. What Processor Does the Lenovo ThinkCentre M90a Gen 2 Have?
  2. Can You Install Graphics Card in Lenovo ThinkCentre M90a Gen 2?
  3. What Ports Are on Lenovo ThinkCentre M90a Gen 2?
  4. What is the Weight and Size of Lenovo ThinkCentre M90a Gen 2?
  5. Can You Add More RAM to Lenovo ThinkCentre M90a Gen 2?

Dell Optiplex 5490 All-in-One FAQs

Here are some related questions you might want to know about the Dell Optiplex 5490 All-in-One:

  1. What Processor Does the Dell Optiplex 5490 All-in-One Have?
  2. Can You Install Graphics Card in Dell Optiplex 5490 All-in-One?
  3. What Ports Are on Dell Optiplex 5490 All-in-One?
  4. What is the Weight and Size of Dell Optiplex 5490 All-in-One?
  5. Can You Add More RAM to Dell Optiplex 5490 All-in-One?

Lenovo ThinkCentre Family

Here are all Lenovo ThinkCentre devices we’ve covered on our site:

Click here to view all Lenovo ThinkCentre desktops.

Dell Optiplex Family

Here are all Dell Optiplex devices we’ve covered on our site:

Click here to view all Dell Optiplex desktops.