Dell OptiPlex 7090 SFF vs. HP EliteDesk 800 G2 SFF

Comparison and Differences

Dell_OptiPlex_7090_SFF.jpg case front and back pannelHP_EliteDesk_800_G2_SFF.jpg case front and back pannel
Model
Form factorSmallSmall
CPU optionsIntel Gen10&11 i3/i5/i7/i9;Intel Gen6 i3/i5/i7; Celeron; Pentium;
ChipsetQ570Q170
Dedicated GPU *AMD Radeon RX 6400 Low ProfileGeForce GT 1030 Low Profile
RAMDIMM DDR4-2666/2933/3200DIMM DDR4-2133
RAM slots44
RAM speed3200 MT/s2133 MT/s
RAM max128 GB64 GB
USB portsUSB 3.2 Type C; USB 3.1 Type C; (2x) USB-A 3.1; USB-A 3.0; (x4) USB-A 2.0;(8x)USB-A 3.0; (2x)USB-A 2.0;
Video ports(3x) Display Port 1.4; HDMI 2.0b;(2x) DisplayPort; VGA;
Other portsRJ45; Audio; Line-Out/In; Serial; (x2) PS2RJ45; Hdph; Mic; Line-Out; Line-In; Serial; (2x) PS2;
Optional portsUSB Type-C (DP Alt Mode); Media Card Reader;SD card reader; Serial; Parallel;
SATA ports33
PCI slotsPCIe 4.0 x16; PCIe 3.0 x4;PCIe 3.0 x16; (2x) PCIe x1; PCIe 3.0 x16 (wired x4)
M.2 slotsM.2 2280/2230 M-key (PCIe 3.0 x4, NVMe); M.2 2230 M-key (PCIe); M.2 2230 (WiFi/BT) N.A.
Drive bays(x2) 3.5in; (2x) 2.5in; 5.25in (slim);2.5in; (2x) 3.5in; 5.25in (slim);
PSU200/300 W200 W
Weight5.72 kg (12.61 lb)7.6 kg (16.7 lb)
Released20212015
Manuallinklink
Price**Check PriceCheck Price

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* Dedicated GPU warning: Check if your particular power supply model has enough power. Additionally some PSUs don't come with an auxiliary PCIe power connector and you may need to buy a SATA to PCIe power adapter.

Differences between Dell OptiPlex 7090 SFF and HP EliteDesk 800 G2 SFF

If you are looking for a more modern desktop, then you should go with the Dell OptiPlex 7090 SFF which was released in 2021. The HP EliteDesk 800 G2 SFF is older and entered production in 2015.

Both models have the same form factor, meaning reoughtly they have the same phiysical size and form.

Processor

Usually the newer the generation of the CPU, the better the performance and efficiency is. If your budget allows it, you should go with the Dell OptiPlex 7090 SFF as it is running a newer generation CPU. This is not to say that HP EliteDesk 800 G2 SFF is bad - it can still run some powerful CPUs, albeit being an older generation.

Memory

Both models have have equal amount of ram slots (4 RAM). Usually two RAM slots are more than enough for most cases. However, the count should be taken into account when planning how much and what combination of RAM you are going to need for your system.

The Dell OptiPlex 7090 SFF is using the faster 3200 MT/s RAM. The HP EliteDesk 800 G2 SFF is slower by supporting RAM speeds of up to 2133 MT/s. Additionally, if you will be needing a lot of RAM, better go for the Dell OptiPlex 7090 SFF as it has the ability to run 128 GB of RAM. The HP EliteDesk 800 G2 SFF can do a bit less at max 64 GB. Most of the times, this should be sufficient for the majority of users.

Ports

In total the HP EliteDesk 800 G2 SFF has 10 USB ports. The Dell OptiPlex 7090 SFF is inferior in this regard and packs 9 USB ports. In any case, if you miss USB ports, you can always purchase a USB hub. What is nice about the Dell OptiPlex 7090 SFF, is that it has 3 USB 3.1 port(s) which allows transfer of up to 10Gb/s. Unfortunately, the HP EliteDesk 800 G2 SFF has no such port, thus restricting your transfer speeds significantly. For people who want to use external drives on regular basis, this might be an issue.

DisplayPort is crucial for any desktop machine. It is good to see that both models are featuring DisplayPorts. However, the Dell OptiPlex 7090 SFF comes with 3 ports, while the HP EliteDesk 800 G2 SFF has only 2. If you are planning to use multiple monitors, the Dell OptiPlex 7090 SFF is the better choice.

The Dell OptiPlex 7090 SFF comes with an HDMI port, while the HP EliteDesk 800 G2 SFF does not support the interface. Of course missing HDMI port is something that can be easily fixed with a good adapter (e.g. DisplayPort to HDMI).

SATA slots are located on the motherboard and it is where SSD, HDD and Optical Disk Drives are connected. Each of the two models being compared have 3 SATA slot(s). Keep in mind that having too few SATA slots might limit your options for connecting additional memory drives.

If you want the fastest transfer speeds for your SSD, an M.2 interface is crucial. Thus, if the M.2 SSD slot is a mandatory requirement for you, go with the Dell OptiPlex 7090 SFF. Sadly, the HP EliteDesk 800 G2 SFF has no such slot, and you will be forced to use the SATA interface instead.

Make sure that the available M.2 slot supports the PCIe (also called NVMe) interface. This is important as there are M.2 slots which support only the inferior SATA III interface. For comparison, the SATA III interface has max speeds of 6Gb/s, while the PCIe 3.0 x4 will support speeds up to 32Gb/s!

Power Supply

Having a Power Supply Unit with high power rating is important, if you are going to use components which require extra power. The HP EliteDesk 800 G2 SFF comes with a decent 200 Watt PSU, but the Dell OptiPlex 7090 SFF has a more powerful one rated at 300 Watts. Choosing either one depends on your specific requirements and use case. Also don't forget that some models might have more than one PSU option - try to always get the most powerful one, especially if you plan to upgrade to a powerful GPU.

Motherboard

Dell_OptiPlex_7090_SFF_motherboard.jpg motherboard layoutHP_EliteDesk_800_G2_SFF_motherboard.jpg motherboard layout