Detailed Specs Comparison

Dell Optiplex 7090 Ultra vs. Dell Inspiron 3891 Desktop

Here is a side by side comparison between Dell Optiplex 7090 Ultra and Dell Inspiron 3891 Desktop 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 7090 Ultra See at Amazon	Compare With Please enter device name or part of it Dell Inspiron 3891 Desktop See at Amazon
Key Features
What's new	Intel Tiger Lake PCH-LP Chipset. 11th Gen Intel Tiger Lake Processors. Up to Intel® Core™ i7-1185G7 (4C/8T, 3.00 → 4.80 GHz, 12MB SmartCache, 28W) Up to 64GB 3200 MHz dual-channel DDR4 memory Up to 2 x 2TB PCIe Gen 4 x4 NVMe SSD. Up to 2TB 2.5" HDD. 90W Power Adapter. Up to Wi-Fi 6 and Bluetooth 5 More Features Up to three display outputs (2 x USB-C Alt-Mode + DP).	Intel B560 Chipset Supports 10th and 11th Gen Intel Processors Up to 65W Intel® Core™ i7-11700 (8C/16T, Up to 4.90 GHz) Up to 64GB 2933MH dual-channel DDR4 memory Up to NVIDIA® GeForce® GTX 1660 SUPER with 6GB of GDDR6 Up to 360W 80+ Bronze PSU Up to Wi-Fi 6 and Bluetooth 5.1 More Features Optional SD Card Reader 3.0. Up to two display outputs (HDMI + VGA).

Availability	Dell Optiplex 7090 Ultra	Dell Inspiron 3891 Desktop
Released	2021	2021
Release Info	Announced on May 11, 2021.	Available in October 2021
Pricing	$1,138.57 i5-1115G4 4GB 500GB 2.5” Wi-Fi 5 $1,398.57 i5-1145G7 8GB 256GB M.2 Wi-Fi 6 $1,470.00 i5-1145G7 16GB 256GB M.2 Wi-Fi 6 $1,712.86 i5-1185G7 16GB 256GB M.2 Wi-Fi 6 $1,855.00 i5-1145G7 4GB 128GB M.2 Wi-Fi 6 C2422HE Monitor	Starting from $429.99 i3-10105 iGPU ODD 8GB 1TB 3.5” HDD Wi-Fi 5
Generations	2021 Dell Optiplex 7090 Ultra Current 2019 Dell Optiplex 7070 Ultra Compare	2022 Dell Inspiron 3910 Desktop Compare 2021 Dell Inspiron 3891 Desktop Current 2020 Dell Inspiron 3881 Desktop Compare 2020 Dell Inspiron 3880 Desktop Compare

Dell Optiplex 7090 Ultra Desktop Price
	Dell OptiPlex 7090 Ultra Mini Desktop Computer Bundle with 24" FHD Monitor, Intel Core i7-1185G7 4.4Ghz, 16GB RAM 256GB SSD, Keyboard & Mouse, Windows 11 Pro (Renewed) By Dell $599.00	See at Amazon
	Dell OptiPlex 7000 7090 Desktop Computer - Intel Core i7 11th Gen i7-1185G7 Quad-core (4 Core) 3 GHz - 16 GB RAM DDR4 SDRAM - 256 GB M.2 PCI Express NVMe SSD - Ultra Small - Black By Dell $779.95	See at Amazon
	Dell OptiPlex 7090 UFF Business Ultra Desktop Computer, Intel Quad-Core i7-1185G7 up to 4.8GHz, 16GB DDR4 RAM, 256GB PCIe SSD, WiFi 6, Bluetooth 5.1, Adjustable Stand, Keyboard & Mouse, Windows 11 Pro By Dell $749.00	See at Amazon
Dell Inspiron 3891 Desktop Price
	Dell Inspiron 3891 Business Desktop Computer, 10th Gen Intel Core i5-10400, Windows 10 Pro, 16GB RAM, 512GB SSD, Intel UHD Graphics 630, Wi-Fi 6, Bluetooth By Dell $732.00 Was: $781.96	See at Amazon
	Dell Inspiron 3891 Compact Tower Desktop - Intel Core i5-11400, 12GB DDR4 RAM, 1TB HDD, Intel UHD Graphics 730 with Shared Graphics Memory, Windows 10 Home - Black By Dell $626.90	See at Amazon
	Dell Inspiron 3891 Compact Tower Desktop - Intel Core i5, 16GB DDR4 RAM, 256GB SSD, 1TB SATA HDD, Intel UHD Graphics 630, 2Yr OnSite, 6 Months Migrate Services, Windows 11 Home By Dell $652.00	See at Amazon

Exterior	Dell Optiplex 7090 Ultra	Dell Inspiron 3891 Desktop
Size Comparison
Dimensions	3.78” x 10.09” x 0.78” (96.1 x 256.2 x 19.7 mm)	11.54 x 12.77 x 6.06” (293 x 324.30 x 154 mm)
Weight	Starting at 1.16 lb (0.525 kg)	Starting at 10.88 lbs (4.94 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	Dell KB216 Wired Keyboard English Black Dell MS116 Wired Mouse Black
Ports	Bottom 1 x USB-C USB 3.2 Gen 2 with DisplayPort Alt Mode and Power Delivery. 2 x USB-A USB 3.2 Gen 2 (10 Gbps) with Smart Power On. 1 x DisplayPort 1.4 Supports 4K@120Hz. 1 x RJ45 Gigabit Ethernet port. 1 x DC-in 4.5mm barrel type. Left 1 x Thunderbolt 4 USB 4 with DisplayPort Alt Mode. 1 x USB-A USB 3.2 Gen 2 (10 Gbps) with PowerShare. 1 x Universal Audio Jack Right 1 x Kensington Slot 1 x Security Screw Slot	Front 3 x USB-A 2 x USB 2.0 (480 Mbps) 1 x USB 3.2 Gen 1 (5 Gbps) 1 x USB-C USB 3.2 Gen 1 (5 Gbps) 1 x SD card reader (Optional) 1 x Universal Audio Jack Rear 4 x USB-A 2 x USB 2.0 (480 Mbps) 2 x USB 3.2 Gen 1 (5 Gbps) 1 x RJ-45 Gigabit Ethernet. 1 x HDMI 1.4b 1 x VGA 1 x Line-out re-tasking Line-in audio port 1 x Power supply unit 1 x Kensington lock slot

Chasis	Dell Optiplex 7090 Ultra	Dell Inspiron 3891 Desktop
Form Factor	Ultra Form Factor	Mini Tower
Power Supply	90W 4.5mm Barrel Power Adapter.	260W 80+ Bronze 85% Efficiency 360W 80+ Bronze 85% Efficiency
Optical Drives		Optional Tray load DVD Drive Reads and Writes to DVD/CD

Internal Specs	Dell Optiplex 7090 Ultra	Dell Inspiron 3891 Desktop
Chipset	Tiger Lake PCH-LP (Integrated with the processor)	Intel B560 Chipset
Processor	11th Gen Intel® Core™ i3-1115G4 2C/4T, 3.00 → 4.10 GHz, 6MB SmartCache, 28W 11th Gen Intel® Core™ i5-1145G7 4C/8T, 2.60 → 4.40 GHz, 8MB SmartCache, 28W 11th Gen Intel® Core™ i7-1185G7 4C/8T, 3.00 → 4.80 GHz, 12MB SmartCache, 28W	10th Gen Intel® Celeron® G5905 2C/2T, 3.50 GHz, 4MB SmartCache, 58W 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™ i5-10400 6C/12T, 2.90 → 4.30 GHz, 12MB SmartCache, 65W 10th Gen Intel® Core™ i5-10400F 6C/12T, 2.90 → 4.30 GHz, 12MB SmartCache, 65W 10th Gen Intel® Core™ i7-10700 8C/16T, 2.90 → 4.80 GHz, 16MB SmartCache, 65W 10th Gen Intel® Core™ i7-10700F 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™ i5-11400F 6C/12T, 2.60 → 4.40 GHz, 12MB SmartCache, 65W 11th Gen Intel® Core™ i7-11700 8C/16T, 2.50 → 4.90 GHz, 16MB SmartCache, 65W 11th Gen Intel® Core™ i7-11700F 8C/16T, 2.50 → 4.90 GHz, 16MB SmartCache, 65W
Integrated Graphics	11th Gen Intel® Core™ i3-1115G4 Intel® UHD Graphics 48 Execution Units, 400 → 1250 MHz 11th Gen Intel® Core™ i5-1145G7 Intel® Iris® Xe Graphics 80 Execution Units, 400 → 1300 MHz 11th Gen Intel® Core™ i7-1185G7 Intel® Iris® Xe Graphics 96 Execution Units, 400 → 1350 MHz	10th Gen Intel® Celeron® G5905 Intel® UHD Graphics 610 350 → 1050 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™ i5-10400 Intel® UHD Graphics 630 24 Execution Units, 350 → 1100 MHz 10th Gen Intel® Core™ i5-10400F Not Available 10th Gen Intel® Core™ i7-10700 Intel® UHD Graphics 630 24 Execution Units, 350 → 1200 MHz 10th Gen Intel® Core™ i7-10700F Not Available 11th Gen Intel® Core™ i5-11400 Intel® UHD Graphics 730 24 Execution Units, 350 → 1300 MHz 11th Gen Intel® Core™ i5-11400F Not Available 11th Gen Intel® Core™ i7-11700 Intel® UHD Graphics 750 32 Execution Units, 350 → 1300 MHz 11th Gen Intel® Core™ i7-11700F Not Available
Discrete Graphics		NVIDIA® GeForce® GT 730 - 2GB GDDR5 GT 1030 - 2GB GDDR5 GTX 1650 SUPER - 4GB GDDR6 GTX 1660 SUPER - 6GB GDDR6
Memory	Memory Slots: 2 SODIMM slots Memory Type: Single or Dual Channel DDR4 Memory Memory Speed: 3200MHz Memory Configurations 4GB 8GB 16GB 32GB 64GB	4GB 8GB 16GB 32GB 64GB Memory Slots: 2 DIMM slots Memory Type: Single or Dual Channel DDR4 Memory Memory Speed: 2666 MHz 2933 MHz Memory Per Slot: 4GB 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 NVME SSD 1TB 2TB 7200 rpm 3.5" SATA Hard Drive
Slots	Expansion Slots No Expansion slot. SATA 1 x SATA 3.0 FFC connector For 2.5-inch 7mm slim HDD/SSD. M.2 1 x M.2 2230 slot For WiFi and Bluetooth combo card 1 x M.2 2230 slot For PCIe SDD. 1 x M.2 2230/2280 slot For SSD/Intel Optane	Expansion Slots 1 x PCIe x16 slot PCIe Gen 3, Full-height 1 x PCIe x1 slot PCIe Gen 3, Full-height SATA 3 x SATA slots 1 x SATA 2.0 for Slim Optical Drive 2 x SATA 3.0 for 3.5-inch, 2.5-inch hard drive. 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

Connectivity	Dell Optiplex 7090 Ultra	Dell Inspiron 3891 Desktop
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	Qualcomm QCA9377 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
Ethernet	Intel i219LM Gigabit Ethernet controller Speed: 10/100/1000 Mbps.	Realtek RTL8111HSD Gigabit Ethernet controller 10/100/1000 Mbps.

Software	Dell Optiplex 7090 Ultra	Dell Inspiron 3891 Desktop
OS	Windows 10 Home Windows 10 Pro Upgradable to Windows 11 Ubuntu Linux 20.04 LTS	Windows 10 Home Windows 10 Pro Windows 11 Home Windows 11 Pro Free Upgrade to Windows 11
Built-in Apps	Microsoft Office 30 Day Trial	Microsoft Office 30-day trial McAfee LiveSafe 12 Month Subscription

Camera & Audio	Dell Optiplex 7090 Ultra	Dell Inspiron 3891 Desktop
Audio	No built-in Speaker Audio controller Realtek ALC3204-CG Intel High Definition Audio External Ports 1 x Universal Audio Jack Front	Audio controller C-media CM6548 External Ports One headset port One Line-out port

Misc	Dell Optiplex 7090 Ultra	Dell Inspiron 3891 Desktop
Warranty	3-Year Basic Onsite Service	1 Year Hardware Service with Onsite/In-Home Service After Remote Diagnosis

Dell Optiplex 7090 Ultra vs. Dell Inspiron 3891 Desktop

The Dell Optiplex 7090 Ultra and the Dell Inspiron 3891 Desktop were released in the same year, 2021. The Dell Optiplex 7090 Ultra has an ultra form factor that is very small and slim can be hidden in a monitor stand, mounted on a wall, or under a desk. The Dell Inspiron 3891 Desktop 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 Ultra, you have options to configure it with a 28W 11th Generation Intel Tiger Lake UP3 dual-core Intel Core i3-1115G4 up to a 28W quad-core Intel Core i7-1185G7 with a boost speed up to 4.80 GHz.

While Dell Inspiron 3891 Desktop has configurations with a 58W 10th Generation Intel Comet Lake dual-core Intel Celeron G5905 up to a 65W 8-core Intel Core i7-11700F 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 Dell Optiplex 7090 Ultra up to 64GB of 3200MHz dual-channel DDR4 memory. For Dell Inspiron 3891 Desktop, it supports up to 64GB 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 5 USB ports available on the Dell Optiplex 7090 Ultra, three less than the Dell Inspiron 3891 Desktop that has 8 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 Ultra has three USB Type-A ports and two USB Type-C ports. It has three ports that support USB 3.2 Gen 2 (10 Gbps) and two ports that support USB 4.0 (40 Gbps).

For Dell Inspiron 3891 Desktop, it has seven USB Type-A ports and one USB Type-C port. The PC has four ports that support USB 2.0 (480 Mbps) and four ports that support USB 3.2 Gen 1 (5 Gbps).

Pricing

Dell Optiplex 7090 Ultra Desktop Price
	Dell OptiPlex 7090 Ultra Mini Desktop Computer Bundle with 24" FHD Monitor, Intel Core i7-1185G7 4.4Ghz, 16GB RAM 256GB SSD, Keyboard & Mouse, Windows 11 Pro (Renewed) By Dell $599.00	See at Amazon
	Dell OptiPlex 7000 7090 Desktop Computer - Intel Core i7 11th Gen i7-1185G7 Quad-core (4 Core) 3 GHz - 16 GB RAM DDR4 SDRAM - 256 GB M.2 PCI Express NVMe SSD - Ultra Small - Black By Dell $779.95	See at Amazon
	Dell OptiPlex 7090 UFF Business Ultra Desktop Computer, Intel Quad-Core i7-1185G7 up to 4.8GHz, 16GB DDR4 RAM, 256GB PCIe SSD, WiFi 6, Bluetooth 5.1, Adjustable Stand, Keyboard & Mouse, Windows 11 Pro By Dell $749.00	See at Amazon
Dell Inspiron 3891 Desktop Price
	Dell Inspiron 3891 Business Desktop Computer, 10th Gen Intel Core i5-10400, Windows 10 Pro, 16GB RAM, 512GB SSD, Intel UHD Graphics 630, Wi-Fi 6, Bluetooth By Dell $732.00 Was: $781.96	See at Amazon
	Dell Inspiron 3891 Compact Tower Desktop - Intel Core i5-11400, 12GB DDR4 RAM, 1TB HDD, Intel UHD Graphics 730 with Shared Graphics Memory, Windows 10 Home - Black By Dell $626.90	See at Amazon
	Dell Inspiron 3891 Compact Tower Desktop - Intel Core i5, 16GB DDR4 RAM, 256GB SSD, 1TB SATA HDD, Intel UHD Graphics 630, 2Yr OnSite, 6 Months Migrate Services, Windows 11 Home By Dell $652.00	See at Amazon