Detailed Specs Comparison

Dell Optiplex 7490 All-in-One vs. Dell Optiplex 7090 Tower

Here is a side by side comparison between Dell Optiplex 7490 All-in-One and Dell Optiplex 7090 Tower specs including price, processors, memory, graphics, storage, ports, and more.

BY Evan Forrest February 26, 2022

Specs Comparison

	Compare With Please enter device name or part of it Dell Optiplex 7490 All-in-One See at Amazon	Compare With Please enter device name or part of it Dell Optiplex 7090 Tower See at Amazon
Key Features
What's new	Up to 23.8” FHD with Touch Monitor. New 10th and 11th Gen Intel Core Processors. Up to Intel Core i9-11900 (8 cores/ 16 threads). Up to NVIDIA® GeForce® GTX 1650 Ti, (4GB GDDR6). Up to 64GB 3200MHz DDR4 memory Up to 2 x 2TB PCIe Gen 3 x4 and Gen 4 x4 NVMe SSD. Built-in Infrared Camera for Windows Hello Sign-in.	New 10th and 11th Gen Intel Core Processors. Up to Intel Core i9-11900K (8 cores/ 16 threads). Up to NVIDIA® GeForce® RTX 3070, (8GB GDDR6). Up to 64GB 3200MHz DDR4 memory Up to 128GB 2933MHz DD4 memory. Up to 2 x 2TB PCIe Gen 4 x4 NVMe SSD.

Availability	Dell Optiplex 7490 All-in-One	Dell Optiplex 7090 Tower
Released	2021	2021
Release Info	Announced on May 11, 2021.	Announced on May 11, 2021.
Pricing	10th Gen Intel Processor $2,170.00 i5-10505 16GB 256GB M.2 160W PSU Wi-Fi 6 $2,255.71 i7-10700 16GB 256GB M.2 160W PSU Wi-Fi 6 $2,312.86 i7-10700 16GB 512GB M.2 160W PSU Wi-Fi 6 11th Gen Intel Processor $1,927.14 i5-11500 8GB 256GB M.2 160W PSU Wi-Fi 6 $2,027.14 i5-11500 16GB 256GB M.2 160W PSU Wi-Fi 6 $2,218.00 i7-11700 8GB 128GB M.2 160W PSU Wi-Fi 6 $2,312.86 i7-11700 8GB 128GB M.2 160W PSU Wi-Fi 6 $2,893.00 i7-11700 8GB 512GB M.2 GTX 1650 Ti Touch Enabled 220W PSU Wi-Fi 6	10th Gen Intel Processor $1,618.00 i5-10505 16GB 1TB 2.5” HDD 260W PSU Wi-Fi 6 $1,870.00 i7-10700 16GB 256GB M.2 260W PSU DVD+/-RW $1,941.43 i7-10700 16GB 512GB M.2 260W PSU DVD+/-RW 11th Gen Intel Processor $1,912.86 i7-11700 16GB 256GB M.2 260W PSU DVD+/-RW $1,984.29 i7-11700 16GB 512GB M.2 260W PSU DVD+/-RW
Generations	Dell Optiplex 7490 All-in-One Current Dell Optiplex 7480 All-in-One Compare	2021 Dell Optiplex 7090 Tower Current 2020 Dell Optiplex 7080 Tower Compare 2019 Dell Optiplex 7070 Tower Compare 2018 Dell Optiplex 7060 Tower Compare

Dell Optiplex 7490 All-in-One Price
	Dell OptiPlex 7000 7490 All-in-One Computer - Intel Core i5 11th Gen i5-11500 Hexa-core (6 Core) 2.70 GHz - 8 GB RAM DDR4 SDRAM - 256 GB M.2 PCI Express NVMe 3.0 x4 SSD - 23.8" Full HD 1920 x 1080 - By Dell $399.00	See at Amazon
	DELL OptiPlex 7000 7450 23.8in (1920x1080) Full HD Business ALL-IN-ONE Desktop, Intel Quad-Core i5-6500, 8GB, 500GB, Wi-Fi, Keyboard & Mouse, Windows 10 Pro - Wrt til 2021 (Renewed)'] By Dell $329.00	See at Amazon
	Dell Optiplex 7000 7490 AIO (2021) \| 23.8" FHD \| Core i7-256GB SSD - 8GB RAM \| 8 Cores @ 4.8 GHz - 10th Gen CPU (Renewed) By Dell $787.05	See at Amazon
Dell Optiplex 7090 Tower Price
	Dell Optiplex 7090 Micro Tower Desktop \| Core i7-10700T - 512GB SSD Hard Drive - 16GB RAM \| 8 cores @ 4.5 GHz Win 11 Pro Black (Renewed) By Dell $401.08	See at Amazon
	DELL OptiPlex 7000 Series 7090 Tower Business Desktop, Intel Core i7-11700, 32GB RAM, 1TB SSD, DVD-RW, Display Port, Wired Keyboard & Mouse, Wi-Fi, Windows 11 Pro By Dell $698.00	See at Amazon
	Dell OptiPlex 7000 Tower Business Desktop Computer, Intel 12-Core i7-12700 to 4.9GHz, 32GB DDR5 RAM, 1TB PCIe SSD, WiFi 6, Bluetooth, RJ-45, Type-C, DisplayPort, Keyboard and Mouse, Windows 11 Pro By Dell $889.00	See at Amazon

Display	Dell Optiplex 7490 All-in-One	Dell Optiplex 7090 Tower
Size	23.8 Inches
Info	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 141 PPI 16:9 250 nits 1000:1 72% NTSC 60Hz Anti-Glare 13.48W

Exterior	Dell Optiplex 7490 All-in-One	Dell Optiplex 7090 Tower
Size Comparison
Dimensions	21.26” x 13.54” x 2.07” (540.20 x 344 x 52.80 mm)	11.84” x 14.45” x 6.65” (300.80 x 367 x 169 mm)
Weight	Up to 14.46 lb (6.59 kg) Full HD Non-Touch models. Up to 13.87 lb (5.85 kg) Full HD with Touch models.	Up to 22.53 lb (10.22 kg)
Colors	Gray	Black
Keyboard and Trackpad	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	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	Side 1 x USB-A USB 3.2 Gen 1 (5 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 SD 4.0 Card Slot Optional. Rear 2 x USB-A USB 3.2 Gen 2 (10 Gbps). 2 x USB-A USB 3.2 Gen 2 (10 Gbps) with Smart Power On. 1 x DisplayPort++ DisplayPort 1.4a supports 4K@120Hz and HDCP 2.3. 1 x HDMI-IN 1.4 1 x HDMI-OUT 2.0 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	Front 1 x USB-A USB 2.0 (480 Mbps). 1 x USB-A USB 2.0 (480 Mbps) with Powershare. 1 x USB-A USB 3.2 Gen 2 (10 Gbps). 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 Rear 2 x USB-A USB 2.0 (480 Mbps) with Smart Power On. 3 x USB-A USB 3.2 Gen 1 (5 Gbps). 1 x USB-A USB 3.2 Gen 2 (10 Gbps). 1 x USB-C USB 3.2 Gen 2 Alt-Mode (optional). 2 x DisplayPort DisplayPort 1.4 supports 4K@120Hz. 1 x Display Out VGA, DisplayPort 1.4, HDMI 2.0b, or USB 3.2 Gen 2 with Alt-mode (optional). 1 x RJ-45 Gigabit Ethernet. 1 x Audio Jack Re-tasking Line out/Line in audio port. 1 x Serial 2 x PS/2 1 x Kensington Lock Slot 1 x Power Connection

Chasis	Dell Optiplex 7490 All-in-One	Dell Optiplex 7090 Tower
Form Factor	All-in-One	Mid Tower
Power Supply	160W 80+ Bronze 85% Efficiency 220W 80+ Platinum 92% Efficiency	260W 80+ Bronze 85% Efficiency 300W 80+ Platinum 92% Efficiency 360W 80+ Platinum 92% Efficiency 500W 80+ Platinum 92% Efficiency 1 x 6+8 PIN connector for GPU
Optical Drives		8x DVD+/-RW 9.5mm ODD Optional.
Chasis Information	Stands: Fixed stand Height Adjustable stand Articulating stand Height Adjustable stand with Optical Disk Drive

Internal Specs	Dell Optiplex 7490 All-in-One	Dell Optiplex 7090 Tower
Chipset	Intel® Q570 Chipset	Intel® Q570 Chipset
Processor	10th Gen Intel® Core™ i3-10100 4C/8T, 3.60 → 4.30 GHz, 6MB SmartCache, 65W 10th Gen Intel® Core™ i3-10105 4C/8T, 3.70 → 4.40 GHz, 6MB SmartCache, 65W 10th Gen Intel® Core™ i3-10300 4C/8T, 3.70 → 4.40 GHz, 8MB 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	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™ i7-10700K 8C/16T, 3.80 → 5.10 GHz, 16MB SmartCache, 125W 10th Gen Intel® Core™ i9-10900 10C/20T, 2.80 → 5.20 GHz, 20MB SmartCache, 65W 10th Gen Intel® Core™ i9-10900K 10C/20T, 3.70 → 5.30 GHz, 20MB SmartCache, 125W 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™ i7-11700K 8C/16T, 3.60 → 5.00 GHz, 16MB SmartCache, 125W 11th Gen Intel® Core™ i9-11900 8C/16T, 2.50 → 5.20 GHz, 16MB SmartCache, 65W 11th Gen Intel® Core™ i9-11900K 8C/16T, 3.50 → 5.30 GHz, 16MB SmartCache, 125W
Integrated Graphics	10th Gen Intel® Core™ i3-10100 Intel® UHD Graphics 630 23 Execution Units, 350 → 1100 MHz 10th Gen Intel® Core™ i3-10105 Intel® UHD Graphics 630 23 Execution Units, 350 → 1100 MHz 10th Gen Intel® Core™ i3-10300 Intel® UHD Graphics 630 23 Execution Units, 350 → 1150 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	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™ i7-10700K 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 10th Gen Intel® Core™ i9-10900K 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™ i7-11700K 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 11th Gen Intel® Core™ i9-11900K Intel® UHD Graphics 750 32 Execution Units, 350 → 1300 MHz
Discrete Graphics	Optional NVIDIA® GeForce® GTX 1650 Ti - 4GB GDDR6	NVIDIA® GeForce® GTX 1660 SUPER™ - 6GB GDDR6 125W 1 x DisplayPort 1.4 1 x HDMI 2.0b 1 x DVI-D RTX™ 3070 - 8GB GDDR6 220W 3 x DisplayPort 1.4 1 x HDMI 2.0b AMD® Radeon™ 540 - 4GB GDDR5 50W 1 x HDMI 1.4 1 x DisplayPort 550 - 4GB GDDR5 50W 1 x DisplayPort 1.4 2 x mini DisplayPort ports RX 640 - 4GB GDDR5 50W 1 x DisplayPort 1.4 2 x mini DisplayPort ports
Memory	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	Memory Slots: 4 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 128GB 2666 MHz for 10th Gen Intel Core i3/i5 CPU 2933 MHz for 10th Gen Intel Core i7/i9 CPU 2933 MHz for 11th Gen Intel Core CPU
Storage	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	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 1TB 2TB 4TB 5400 rpm or 7200 rpm 3.5" SATA Hard Drive
Slots	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 2 x M.2 2230/2280 slot For SSD/Intel Optane	Expansion Slots 1 x PCIe x16 slot PCIe Gen 4, Full-height 1 x PCIe x16 slot Wired x4, Full-height 1 x PCIe x1 slot Full-height 1 x PCIe-32 slot Full-height SATA 4 x SATA slots For 2.5-inch HDD/SSD, and slim Optical Drive. M.2 1 x M.2 2230 slot For WiFi and Bluetooth combo card 1 x M.2 2280 slot For SSD/Intel Optane. 1 x M.2 2230/2280 slot For SSD/Intel Optane

Connectivity	Dell Optiplex 7490 All-in-One	Dell Optiplex 7090 Tower
Wi-Fi	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	No Wireless LAN Card 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 5.0 Bluetooth 5.1 Optional
Ethernet	Intel i219LM Gigabit Ethernet controller Speed: 10/100/1000 Mbps.	Intel i219LM Gigabit Ethernet controller Speed: 10/100/1000 Mbps.

Software	Dell Optiplex 7490 All-in-One	Dell Optiplex 7090 Tower
OS	Windows 10 Home Windows 10 Pro Upgradable to Windows 11 Ubuntu Linux 20.04 LTS NeoKylin 7.0 (China only)	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	Microsoft Office 30 Day Trial

Camera & Audio	Dell Optiplex 7490 All-in-One	Dell Optiplex 7090 Tower
Camera	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	2 x 5W Speakers 2 x Microphones Audio controller: Realtek ALC3289 Amplifier: Realtek Amplifier ALC1302 External Ports 1 x Universal Audio Jack Front 1 x Audio port Line-out audio port with re-tasking to Line-in (Rear).	One 2W Speaker (optional) Audio controller Realtek ALC3241 4 Channel High Definition Audio 24-bit DAC (Digital-to-Analog) and ADC (Analog-to-Digital) External Ports 1 x Universal Audio Jack Front 1 x Audio port Line-out audio port with re-tasking to Line-in (Rear).

Misc	Dell Optiplex 7490 All-in-One	Dell Optiplex 7090 Tower
Security	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	3-Year Basic Onsite Service	3-Year Basic Onsite Service

Dell Optiplex 7490 All-in-One vs. Dell Optiplex 7090 Tower

The Dell Optiplex 7490 All-in-One and the Dell Optiplex 7090 Tower were released in the same year, 2021. The Dell Optiplex 7490 All-in-One has an all-in-one form factor that combines all components and a built-in monitor into one package. The Dell Optiplex 7090 Tower has a mini tower form factor that can fit a micro ATX and Mini ITX motherboard, a few hard disk drives, and a single full-height 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 Dell Optiplex 7490 All-in-One, you have options to configure it with a 65W 10th Generation Intel Comet Lake quad-core Intel Core i3-10100 up to a 65W 8-core Intel Core i9-11900 with a boost speed up to 5.20 GHz.

While Dell Optiplex 7090 Tower has configurations with a 65W 10th Generation Intel Comet Lake quad-core Intel Core i3-10105 up to a 125W 8-core Intel Core i9-11900K with a boost speed up to 5.30 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.

Fortunately, both PC allows you to upgrade later if you are unsatisfied with the amount of memory on your PC. The Dell Optiplex 7490 All-in-One has two RAM slots that support up to 64GB of 3200MHz dual-channel DDR4 memory. On the other hand, the Dell Optiplex 7090 Tower has four RAM slots that you can upgrade up to 64GB of 3200MHz or 128GB of 2933MHz 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 6 USB ports available on the Dell Optiplex 7490 All-in-One, four less than the Dell Optiplex 7090 Tower that has 10 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 Dell Optiplex 7490 All-in-One has five USB Type-A ports and one USB Type-C port. It has two ports that support USB 2.0 (480 Mbps), one port that supports USB 3.2 Gen 1 (5 Gbps), four ports that support USB 3.2 Gen 2 (10 Gbps), and one port that supports USB 3.2 Gen 2x2 (20 Gbps).

For Dell Optiplex 7090 Tower, it has nine USB Type-A ports and one USB Type-C port. The PC has four ports that support USB 2.0 (480 Mbps), three ports that support USB 3.2 Gen 1 (5 Gbps), two ports that support USB 3.2 Gen 2 (10 Gbps), and one port that supports USB 3.2 Gen 2x2 (20 Gbps).

Pricing

Dell Optiplex 7490 All-in-One Price
	Dell OptiPlex 7000 7490 All-in-One Computer - Intel Core i5 11th Gen i5-11500 Hexa-core (6 Core) 2.70 GHz - 8 GB RAM DDR4 SDRAM - 256 GB M.2 PCI Express NVMe 3.0 x4 SSD - 23.8" Full HD 1920 x 1080 - By Dell $399.00	See at Amazon
	DELL OptiPlex 7000 7450 23.8in (1920x1080) Full HD Business ALL-IN-ONE Desktop, Intel Quad-Core i5-6500, 8GB, 500GB, Wi-Fi, Keyboard & Mouse, Windows 10 Pro - Wrt til 2021 (Renewed)'] By Dell $329.00	See at Amazon
	Dell Optiplex 7000 7490 AIO (2021) \| 23.8" FHD \| Core i7-256GB SSD - 8GB RAM \| 8 Cores @ 4.8 GHz - 10th Gen CPU (Renewed) By Dell $787.05	See at Amazon
Dell Optiplex 7090 Tower Price
	Dell Optiplex 7090 Micro Tower Desktop \| Core i7-10700T - 512GB SSD Hard Drive - 16GB RAM \| 8 cores @ 4.5 GHz Win 11 Pro Black (Renewed) By Dell $401.08	See at Amazon
	DELL OptiPlex 7000 Series 7090 Tower Business Desktop, Intel Core i7-11700, 32GB RAM, 1TB SSD, DVD-RW, Display Port, Wired Keyboard & Mouse, Wi-Fi, Windows 11 Pro By Dell $698.00	See at Amazon
	Dell OptiPlex 7000 Tower Business Desktop Computer, Intel 12-Core i7-12700 to 4.9GHz, 32GB DDR5 RAM, 1TB PCIe SSD, WiFi 6, Bluetooth, RJ-45, Type-C, DisplayPort, Keyboard and Mouse, Windows 11 Pro By Dell $889.00	See at Amazon