Detailed Specs Comparison

Dell Optiplex 7090 Micro vs. Dell Precision 3450 SFF

Here is a side by side comparison between Dell Optiplex 7090 Micro and Dell Precision 3450 SFF 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 Dell Optiplex 7090 Micro See at Amazon	Compare With Please enter device name or part of it Dell Precision 3450 SFF See at Amazon
Key Features
What's new	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.	Intel® W580 Chipset Supports 10th and 11th Gen Intel Core Processors. Up to 65W Intel® Core™ i9-11900 (8 cores/16 threads, up to 5.20 GHz). Up to 80W Intel® Xeon® W-1390 (8 cores/16 threads, up to 5.20 GHz). Up to NVIDIA® Quadro® RTX P1000 with 4GB GDDR5. Up to AMD® Radeon™ Pro WX3200 with 4GB GDDR5. Up to 64GB 3200MHz ECC or Non-ECC dual-channel DDR4 memory. Up to 128GB 2933MHz ECC or Non-ECC dual-channel DD4 memory. Up to 3 x 2TB PCIe Gen 4 NVMe SSD. Up to 300W 80 Plus Platinum with 92% Efficiency.

Availability	Dell Optiplex 7090 Micro	Dell Precision 3450 SFF
Released	2021	2021
Release Info	Announced on May 11, 2021.	Announced on May 10, 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	Starting at $1,079.00 i5-10505 \| 8GB \| 256 SSD
Generations	2021 Dell Optiplex 7090 Micro Current 2020 Dell Optiplex 7080 Micro Compare 2019 Dell Optiplex 7070 Micro Compare 2018 Dell Optiplex 7060 Micro Compare

Dell Optiplex 7090 Micro 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 $499.52	See at Amazon
	Dell OptiPlex 7090 MFF Micro Form Factor Desktop Computer - 10th Gen Intel Core i7-10700T up to 4.50 GHz CPU32GB RAM512GB PCIe SSDIntel UHD Graphics 630Wi-Fi 6Bluetooth 5.1Windows 11 Pro (Renewed) By Dell $619.99	See at Amazon
	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 $499.95	See at Amazon
Dell Precision 3450 SFF Price
	Dell Precision 3420 SFF High Performance Desktop Computer PC, NVIDIA Quadro P1000 4GB, Intel Core i7-7700 Up to 4.2GHz, 32GB DDR4, 512GB SSD, 1TB HDD, Keyboard&Mouse, 4K Support, Win 10 Pro(Renewed) By Dell $290.22	See at Amazon
	Dell Precision 3000 3450 Workstation - Intel Core i7 Octa-core (8 Core) i7-10700 10th Gen 2.90 GHz - 16 GB DDR4 SDRAM RAM - 512 GB SSD - Small Form Factor - Black By Dell $1,899.00	See at Amazon
	Dell Precision 3420 SFF Desktop Computer PC, NVIDIA Quadro K1200 4GB, Intel i5-6500U 3.2GHz, 16GB DDR4, 512GB SSD, Keyboard&Mouse, 4K Support, HDMI, Win 10 Pro(Renewed) By Dell $165.00	See at Amazon

Exterior	Dell Optiplex 7090 Micro	Dell Precision 3450 SFF
Size Comparison
Dimensions	7.0” x 7.2” x 1.4” (178.5 x 183 x 36 mm)	11.53” x 11.12” x 3.65” (292.8 x 290 x 92.6 mm)
Weight	Up to 12.61 lb (5.72 kg)	9.88 ~ 13.131 lbs. (4.48 ~ 5.956 kg)
Colors	Black	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	Keyboard Dell KB813 Smart Card Keyboard (US) Dell KB216 Wired Keyboard English No Keyboard Mouse Dell Wired Mouse MS3220 - Black Dell Optical Mouse - MS116 (Black) Dell Wired Mouse with Fingerprint Reader No Mouse
Ports	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	Front 3 x USB-A 2 x USB 2.0 (480 Mbps) with PowerShare. 1 x USB 3.2 Gen 2 (10 Gbps). 1 x USB-C USB 3.2 Gen 2x2 (20 Gbps) 1 x SD Card Reader v4.0 1 x Universal Audio Jack Rear 6 x USB-A 2 x USB 2.0 (480 Mbps) with Smart Power On. 3 x USB 3.2 Gen 1 (5 Gbps). 1 x USB 3.2 Gen 2 (10 Gbps). 2 x DisplayPort 1.4 Supports 4K@120Hz. 1 x RJ-45 Gigabit Ethernet. 1 x Audio Jack Re-tasking Line out/Line in audio port. 2 x PS/2 1 x Serial port 1 x Optional Port VGA, DisplayPort 1.4, HDMI 2.0, or USB-C with DP-Alt mode. 1 x Kensington Lock Slot 1 x Power Connection

Chasis	Dell Optiplex 7090 Micro	Dell Precision 3450 SFF
Form Factor	Micro Form Factor	Small Form Factor (SFF)
Power Supply	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.	260W 80+ Bronze 85% Efficiency 300W 80+ Platinum 92% Efficiency
Optical Drives		8x DVD+/-RW 9.5mm Optical Disk Drive 8x DVD-ROM 9.5mm Optical Disk Drive

Internal Specs	Dell Optiplex 7090 Micro	Dell Precision 3450 SFF
Chipset	Intel® Q570 Chipset	Intel® W580 Chipset
Processor	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	10th Gen Intel® Core™ i3-10105 4C/8T, 3.70 → 4.40 GHz, 6MB 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 10th Gen Intel® Xeon® W-1250 6C/12T, 3.30 → 4.70 GHz, 12MB SmartCache, 80W 10th Gen Intel® Xeon® W-1270 8C/16T, 3.40 → 5.00 GHz, 16MB SmartCache, 80W 10th Gen Intel® Xeon® W-1290 10C/20T, 3.20 → 5.20 GHz, 20MB SmartCache, 80W 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 11th Gen Intel® Xeon® W-1350 6C/12T, 3.30 → 5.00 GHz, 12MB SmartCache, 80W 11th Gen Intel® Xeon® W-1370 8C/16T, 2.90 → 5.10 GHz, 16MB SmartCache, 80W 11th Gen Intel® Xeon® W-1390 8C/16T, 2.80 → 5.20 GHz, 16MB SmartCache, 80W
Integrated Graphics	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	10th Gen Intel® Core™ i3-10105 Intel® UHD Graphics 630 23 Execution Units, 350 → 1100 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 10th Gen Intel® Xeon® W-1250 Intel® UHD Graphics P630 24 Execution Units, 350 → 1200 MHz 10th Gen Intel® Xeon® W-1270 Intel® UHD Graphics P630 24 Execution Units, 350 → 1200 MHz 10th Gen Intel® Xeon® W-1290 Intel® UHD Graphics P630 24 Execution Units, 350 → 1200 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 11th Gen Intel® Xeon® W-1350 Intel® UHD Graphics P750 32 Execution Units, 350 → 1300 MHz 11th Gen Intel® Xeon® W-1370 Intel® UHD Graphics P750 32 Execution Units, 350 → 1300 MHz 11th Gen Intel® Xeon® W-1390 Intel® UHD Graphics P750 32 Execution Units, 350 → 1300 MHz
Discrete Graphics	AMD® Radeon™ RX 640 - 4GB GDDR5 50W 1 x DisplayPort 1.4 2 x mini DisplayPort ports	NVIDIA® Quadro® P400 - 2GB GDDR5 P630 - 3GB GDDR5 P1000 - 4GB GDDR5 AMD® Radeon™ 550 - 2GB GDDR5 540 - 4GB GDDR5 Pro WX2100 - 2GB GDDR5 Pro WX3200 - 4GB GDDR5
Memory	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	8GB 16GB 32GB 64GB 128GB Memory Slots: 4 x DIMM slots Memory Type: ECC and Non-ECC Dual-Channel DDR4 Memory. Memory Speed: 2666 MHz For 10th Generation Intel Core i3/i5/Xeon W-1250 processors. 2933 MHz For 10th Generation Intel Core i7/i9/Xeon W-1270/W1290 processors. 3200 MHz For 11th Generation Intel Core i5/i7/i9/Xeon W-1350/W-1370/W1390 processors. Memory Size per Slot: 8GB 16GB 32GB
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 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	Expansion Slots 1 x PCIe x16 slot PCIe Gen 4 x16, Half-height 1 x PCIe x4 slot PCIe Gen 3 x4, Half-height SATA 3 x SATA slots 2 x SATA 3.0 slot for 3.5-inch/2.5-inch hard drive 1 x SATA 2.0 slot for slim Optical Drive. M.2 1 x M.2 2230 slot For WiFi and Bluetooth combo card 2 x M.2 2280 slot For SSD. 1 x M.2 2230/2280 slot For SSD/Intel Optane.

Connectivity	Dell Optiplex 7090 Micro	Dell Precision 3450 SFF
Wi-Fi	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	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 5.2 No Wireless LAN Card
Bluetooth	Bluetooth 5.0 Bluetooth 5.1	Bluetooth 5.0 Bluetooth 5.2 Optional
Ethernet	Intel i219LM Gigabit Ethernet controller Speed: 10/100/1000 Mbps.	Intel i219-LM Gigabit Ethernet controller Speed: 10/100/1000 Mbps.

Software	Dell Optiplex 7090 Micro	Dell Precision 3450 SFF
OS	Windows 10 Home Windows 10 Pro Upgradable to Windows 11 Ubuntu Linux 20.04 LTS	Windows 11 Home, 64-bit Windows 11 Pro, 64-bit Windows 11 Pro National Academic, 64-bit Windows 11 Pro for Workstations, 64-bit Windows 10 Home, 64-bit Windows 10 Pro, 64-bit Windows 10 Pro National Academic, 64-bit Red Hate Enterprise Linux 8.4 Ubuntu 20.04 LTS, 64-bit
Built-in Apps	Microsoft Office 30 Day Trial	Dell Optimizer for Precision Microsoft Office 30 Day Trial

Camera & Audio	Dell Optiplex 7090 Micro	Dell Precision 3450 SFF
Audio	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).	One 2W Speaker (optional) Audio controller Realtek ALC3246 4 Channel 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 (Rear).

Misc	Dell Optiplex 7090 Micro	Dell Precision 3450 SFF
Warranty	3-Year Basic Onsite Service	3-Year Basic Onsite Service

Dell Optiplex 7090 Micro vs. Dell Precision 3450 SFF

The Dell Optiplex 7090 Micro and the Dell Precision 3450 SFF were released in the same year, 2021. 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. The Dell Precision 3450 SFF 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 7090 Micro, you have options to configure it 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.

While Dell Precision 3450 SFF has configurations with a 65W 10th Generation Intel Comet Lake quad-core Intel Core i3-10105 up to a 80W 8-core Intel Xeon W-1390 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.

Fortunately, both PC allows you to upgrade later if you are unsatisfied with the amount of memory on your PC. The Dell Optiplex 7090 Micro has two RAM slots that support up to 64GB of 3200MHz dual-channel DDR4 memory. On the other hand, the Dell Precision 3450 SFF has four RAM slots that you can upgrade up to 64GB of 3200MHz or 128GB of 2933MHz ECC or non-ECC 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 7090 Micro, four less than the Dell Precision 3450 SFF 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 7090 Micro has five USB Type-A ports and one USB Type-C port. It 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).

For Dell Precision 3450 SFF, 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 7090 Micro 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 $499.52	See at Amazon
	Dell OptiPlex 7090 MFF Micro Form Factor Desktop Computer - 10th Gen Intel Core i7-10700T up to 4.50 GHz CPU32GB RAM512GB PCIe SSDIntel UHD Graphics 630Wi-Fi 6Bluetooth 5.1Windows 11 Pro (Renewed) By Dell $619.99	See at Amazon
	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 $499.95	See at Amazon
Dell Precision 3450 SFF Price
	Dell Precision 3420 SFF High Performance Desktop Computer PC, NVIDIA Quadro P1000 4GB, Intel Core i7-7700 Up to 4.2GHz, 32GB DDR4, 512GB SSD, 1TB HDD, Keyboard&Mouse, 4K Support, Win 10 Pro(Renewed) By Dell $290.22	See at Amazon
	Dell Precision 3000 3450 Workstation - Intel Core i7 Octa-core (8 Core) i7-10700 10th Gen 2.90 GHz - 16 GB DDR4 SDRAM RAM - 512 GB SSD - Small Form Factor - Black By Dell $1,899.00	See at Amazon
	Dell Precision 3420 SFF Desktop Computer PC, NVIDIA Quadro K1200 4GB, Intel i5-6500U 3.2GHz, 16GB DDR4, 512GB SSD, Keyboard&Mouse, 4K Support, HDMI, Win 10 Pro(Renewed) By Dell $165.00	See at Amazon