Detailed Specs Comparison

Lenovo ThinkCentre M90a Gen 2 vs. Dell Optiplex 7090 Micro

Here is a side by side comparison between Lenovo ThinkCentre M90a Gen 2 and Dell Optiplex 7090 Micro specs including price, processors, memory, graphics, storage, ports, and more.

BY Evan Forrest February 25, 2022

Specs Comparison

	Compare With Please enter device name or part of it Lenovo ThinkCentre M90a Gen 2 See at Amazon	Compare With Please enter device name or part of it Dell Optiplex 7090 Micro See at Amazon
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.	New 10th and 11th Gen Intel Core Processors. Up to 35W Intel Core i9-11900T (8 cores/ 16 threads). Up to 65W Intel Core i9-11900 (8 cores/ 16 threads). Up to AMD® Radeon™ RX 640 (4GB GDDR6). Up to 64 (2 x 32GB) 3200MHz DDR4 memory. Up to 4TB (2 x 2TB) PCIe Gen 4 x4 NVMe SSD.

Availability	Lenovo ThinkCentre M90a Gen 2	Dell Optiplex 7090 Micro
Released	2021	2021
Release Info	Announced on October 12, 2021.	Announced on May 11, 2021.
Pricing		10th Gen Intel Processor $1,341.43 i5-10500T 8GB 128GB M.2 Wi-Fi 6 $1,457.14 i5-10505 8GB 256GB M.2 Wi-Fi 6 $1,541.43 i5-10500T 16GB 512GB M.2 Wi-Fi 6 $1,784.29 i5-10700T 16GB 256GB M.2 Wi-Fi 6 11th Gen Intel Processor $1,441.43 i5-11500T 8GB 256GB M.2 Wi-Fi 6 $1,512.86 i5-11500T 16GB 256GB M.2 Wi-Fi 6 $1,728.00 i5-11700 8GB 128GB M.2 Wi-Fi 6 $1,898.57 i5-11700T 16GB 512GB M.2 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	2021 Lenovo ThinkCentre M90a Gen 2 Current 2020 Lenovo ThinkCentre M90a Compare	2021 Dell Optiplex 7090 Micro Current 2020 Dell Optiplex 7080 Micro Compare 2019 Dell Optiplex 7070 Micro Compare 2018 Dell Optiplex 7060 Micro Compare

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, 16GB RAM, 512GB PCIe SSD, Wi-Fi, Webcam, USB-C, SD Card Reader, Windows 11 Pro By Lenovo $669.99	See at Amazon
	Lenovo ThinkCentre M90a \| Business All in One Desktop \| 23.8" FHD IPS Display \| 32GB RAM \| 2TB Storage (1TB SSD with 1TB HDD) \| Intel Core i5 Processor \| FHD Webcome \| Wi-Fi 6 \| Win 11 Pro By Lenovo $758.88 Was: $799.99	See at Amazon
	Lenovo ThinkCentre M90a 23.8" FHD AIO Business All-in-One Desktop, Intel Octa-Core i7-10700 up to 4.8GHz, 32GB DDR4 RAM, 1TB PCIe SSD, WiFi Adapter, Ethernet, Windows 11 Pro, BROAG Mouse Pad By Lenovo $799.00	See at Amazon
Dell Optiplex 7090 Micro Price
	Dell OptiPlex 7000 7090 Micro Tower Desktop (2021) \| Core i7-512GB SSD - 16GB RAM \| 8 Cores @ 4.6 GHz - 11th Gen CPU Win 11 Pro (Renewed) By Dell $637.98	See at Amazon
	Dell OptiPlex 7000 7090 Desktop Computer - Intel Core i5 10th Gen i5-10500T Hexa-core (6 Core) 2.30 GHz - 16 GB RAM DDR4 SDRAM - 512 GB M.2 PCI Express NVMe 3.0 x4 SSD - Micro PC - Black By Dell $699.00	See at Amazon
	Dell Newest OptiPlex 7090 MFF Business Micro Mini Desktop Computer, Intel Octa-Core i9 11900 Up to 5.2GHz, 64GB DDR4 RAM, 2TB PCIe SSD, WiFi 6, Bluetooth 5.1, Displayport, Type-C, Windows 11 Pro By Dell $1,099.99	See at Amazon

Display	Lenovo ThinkCentre M90a Gen 2	Dell Optiplex 7090 Micro
Size	23.8 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.

Exterior	Lenovo ThinkCentre M90a Gen 2	Dell Optiplex 7090 Micro
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)	7.0” x 7.2” x 1.4” (178.5 x 183 x 36 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 12.61 lb (5.72 kg)
Colors	Black	Black
Keyboard and Trackpad	Keyboard 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
Ports	Right 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	Front 1 x USB-A USB 3.2 Gen 2 (10 Gbps) with Powershare. 1 x USB-C USB 3.2 Gen 2x2 (20 Gbps) for 11th Gen Intel Core CPU. USB 3.2 Gen 2x1 (10 Gbps) for 10th Gen Intel Core CPU. 1 x Universal Audio Jack 1 x Audio Jack Re-tasking Line out/Line in audio port. Rear with iGPU 1 x USB-A USB 3.2 Gen 1 (5 Gbps). 1 x USB-A USB 3.2 Gen 1 (5 Gbps) with Smart Power On. 2 x USB-A USB 3.2 Gen 2 (10 Gbps). 2 x DisplayPort 1.4 Supports 4K@120Hz. 1 x RJ-45 Gigabit Ethernet. 1 x Kensington Lock Slot 1 x Power Connection Optional 1 x Serial 1 x PS/2 1 x VGA port 1 x HDMI 2.0 Supports 4K@60Hz. 1 x DisplayPort 1.4 Supports 4K@120Hz. 1 x USB-C USB 3.2 Gen 2 Alt-Mode. Rear with dGPU 1 x USB-A USB 3.2 Gen 1 (5 Gbps) with Smart Power On. 2 x USB-A USB 3.2 Gen 2 (10 Gbps). 2 x DisplayPort 1.4 Supports 4K@120Hz. 1 x RJ-45 Gigabit Ethernet. 1 x Kensington Lock Slot 1 x Power Connection AMD Radeon RX 640 1 x DisplayPort 1.4 Supports 4K@120Hz. 2 x Mini DisplayPort

Chasis	Lenovo ThinkCentre M90a Gen 2	Dell Optiplex 7090 Micro
Form Factor	All-in-One	Micro Form Factor
Power Supply	150W Power Adapter 89% efficiency with autosensing, for integrated graphics models. 170W Power Adapter 89% efficiency with autosensing, for discrete graphics models.	4.5mm Barrel Power Adapter 90W For 35W Intel Core i3/i5 CPU. 130W For 35W Intel Core i7/i9 CPU. 180W For 65W CPU with Discrete graphic card.
Bays	2 x 2.5" disk bay 2nd 2.5" HDD occupies ODD bay. 1 x slim ODD bay
Optical Drives	Optional slim optical disc drive
Chasis Information	Buttons 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.

Internal Specs	Lenovo ThinkCentre M90a Gen 2	Dell Optiplex 7090 Micro
Chipset	Intel® Q570 Chipset	Intel® 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® Core™ i3-10105T 4C/8T, 3.00 → 3.90 GHz, 6MB SmartCache, 35W 10th Gen Intel® Core™ i5-10400T 6C/12T, 2.00 → 3.60 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 10th Gen Intel® Core™ i9-10900T 10C/20T, 1.90 → 4.60 GHz, 20MB SmartCache, 35W 10th Gen Intel® Core™ i5-10500T 6C/12T, 2.30 → 3.80 GHz, 12MB 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 11th Gen Intel® Core™ i9-11900T 8C/16T, 1.50 → 4.90 GHz, 16MB SmartCache, 35W 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™ i5-10400 6C/12T, 2.90 → 4.30 GHz, 12MB 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 10th Gen Intel® Core™ i9-10900 10C/20T, 2.80 → 5.20 GHz, 20MB 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
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® Core™ i3-10105T Intel® UHD Graphics 630 23 Execution Units, 350 → 1100 MHz 10th Gen Intel® Core™ i5-10400T Intel® UHD Graphics 630 24 Execution Units, 350 → 1100 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 10th Gen Intel® Core™ i9-10900T Intel® UHD Graphics 630 24 Execution Units, 350 → 1200 MHz 10th Gen Intel® Core™ i5-10500T Intel® UHD Graphics 630 24 Execution Units, 350 → 1150 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 11th Gen Intel® Core™ i9-11900T Intel® UHD Graphics 750 32 Execution Units, 350 → 1300 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™ i5-10400 Intel® UHD Graphics 630 24 Execution Units, 350 → 1100 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 10th Gen Intel® Core™ i9-10900 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 11th Gen Intel® Core™ i9-11900 Intel® UHD Graphics 750 32 Execution Units, 350 → 1300 MHz
Discrete Graphics	Optional AMD Radeon™ 630 with 2GB GDDR5 VRAM	AMD® Radeon™ RX 640 - 4GB GDDR5 50W 1 x DisplayPort 1.4 2 x mini DisplayPort ports
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 SODIMM 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 Processors 2933 MHz for 10th Gen Intel Core i7/i9 Processors 3200 MHz for 11th Gen Intel Core Processors
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
Slots	Expansion 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 For 2.5-inch HDD/SSD. M.2 1 x M.2 2230 slot For WiFi and Bluetooth combo card 1 x M.2 2230/2280 slot For SSD/Intel Optane 1 x M.2 2280 slot For SSD/Intel Optane

Connectivity	Lenovo ThinkCentre M90a Gen 2	Dell Optiplex 7090 Micro
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 QCA9377 (DW1810) Up to 433 Mbps Dual band 2.4 GHz/5 GHz WiFi-5 (802.11ac) Bluetooth 5.0 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
Ethernet	Intel 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 2	Dell Optiplex 7090 Micro
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
Built-in Apps		Microsoft Office 30 Day Trial

Camera & Audio	Lenovo ThinkCentre M90a Gen 2	Dell Optiplex 7090 Micro
Camera	Optional Front-facing camera. 5.0-megapixel, with ThinkShutter (physical switch on/off). Optional Windows Hello IR support.
Audio	High Definition (HD) Audio, Realtek® ALC233 codec 2 x 3W stereo speakers. Dolby® Atmos® Speaker System. Dual array microphone.	Mono 1x2W Speaker Audio controller Waves MaxxAudio Intel High Definition Audio External Ports 1 x Universal Audio Jack Front 1 x Audio port Line-out audio port with re-tasking to Line-in (Front).

Misc	Lenovo ThinkCentre M90a Gen 2	Dell Optiplex 7090 Micro
Sensors	IR Camera
Security	Security 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
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 7090 Micro

The Lenovo ThinkCentre M90a Gen 2 and the Dell Optiplex 7090 Micro were released in the same year, 2021. The Lenovo ThinkCentre M90a Gen 2 has an all-in-one form factor that combines all components and a built-in monitor into one package. The Dell Optiplex 7090 Micro has a micro form factor that can only fit a custom-designed motherboard with none or one expansion slot and supports only a specific OEM graphics card.

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 7090 Micro has configurations with a 35W 10th Generation Intel Comet Lake quad-core Intel Core i3-10105T up to a 65W 8-core Intel Core i9-11900 with a boost speed up to 5.20 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 7090 Micro 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 7090 Micro, it has five USB Type-A ports and one USB Type-C port. The PC has two ports that support USB 3.2 Gen 1 (5 Gbps), three ports that support USB 3.2 Gen 2 (10 Gbps), and one port that supports USB 3.2 Gen 2x2 (20 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, 16GB RAM, 512GB PCIe SSD, Wi-Fi, Webcam, USB-C, SD Card Reader, Windows 11 Pro By Lenovo $669.99	See at Amazon
	Lenovo ThinkCentre M90a \| Business All in One Desktop \| 23.8" FHD IPS Display \| 32GB RAM \| 2TB Storage (1TB SSD with 1TB HDD) \| Intel Core i5 Processor \| FHD Webcome \| Wi-Fi 6 \| Win 11 Pro By Lenovo $758.88 Was: $799.99	See at Amazon
	Lenovo ThinkCentre M90a 23.8" FHD AIO Business All-in-One Desktop, Intel Octa-Core i7-10700 up to 4.8GHz, 32GB DDR4 RAM, 1TB PCIe SSD, WiFi Adapter, Ethernet, Windows 11 Pro, BROAG Mouse Pad By Lenovo $799.00	See at Amazon
Dell Optiplex 7090 Micro Price
	Dell OptiPlex 7000 7090 Micro Tower Desktop (2021) \| Core i7-512GB SSD - 16GB RAM \| 8 Cores @ 4.6 GHz - 11th Gen CPU Win 11 Pro (Renewed) By Dell $637.98	See at Amazon
	Dell OptiPlex 7000 7090 Desktop Computer - Intel Core i5 10th Gen i5-10500T Hexa-core (6 Core) 2.30 GHz - 16 GB RAM DDR4 SDRAM - 512 GB M.2 PCI Express NVMe 3.0 x4 SSD - Micro PC - Black By Dell $699.00	See at Amazon
	Dell Newest OptiPlex 7090 MFF Business Micro Mini Desktop Computer, Intel Octa-Core i9 11900 Up to 5.2GHz, 64GB DDR4 RAM, 2TB PCIe SSD, WiFi 6, Bluetooth 5.1, Displayport, Type-C, Windows 11 Pro By Dell $1,099.99	See at Amazon