Dell XPS 8940 vs. HP EliteDesk 800 G4 SFF

Comparison and Differences

Dell_XPS_8940.jpg case front and back pannelHP_EliteDesk_800_G4_SFF.jpg case front and back pannel
Model
Form factorMini TowerSmall
CPU optionsIntel Gen10 & 11 i3/i5/i7;Intel Gen8 i3/i5/i7; Celeron; Pentium;
ChipsetH470Q370
Dedicated GPU *GeForce RTX 3080GeForce GTX 1650 Low Profile
RAMDIMM DDR4-2666/2933DIMM DDR4-2666
RAM slots44
RAM speed2666 MT/s2666 MT/s
RAM max128 GB64 GB
USB portsUSB 3.0 Type C; USB 3.1 Type A; (2x) USB-A 2.0; (7x) USB-A 3.0;USB-C 3.1; (4x)USB-A 3.1; (2x)USB-A 3.0; (4x)USB-A 2.0;
Video portsHDMI 2.0; DisplayPort 1.4;(2x) DisplayPort;
Other portsRJ45; Mic; Headset; Card Reader;RJ45; Hdph; Headset; Line-Out; Line-In;
Optional portsN.A.DP/HDMI/VGA/USB-C(DP); Serial; SD card reader;
SATA ports33
PCI slotsPCIe 3.0 x16; PCIe x4; PCIe x1;PCIe 3.0 x16; (2x) PCIe 3.0 x1; PCIe 3.0 x16 (wired x4);
M.2 slotsM.2 2280/2230 M-key (PCIe 3.0 x4, NVMe); M.2 2230 (WiFi/BT); (2x) M.2 2280/2230 M-key (PCIe x4); M.2 2230 (WiFi/BT);
Drive bays(3x) 3.5in;2.5in; (2x) 3.5in; 5.25in (slim);
PSU500 W250 W
Weight6.3 kg (13.89 lb)6.13 kg (13.51 lb)
Released20202018
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 XPS 8940 and HP EliteDesk 800 G4 SFF

If you are looking for a more modern desktop, then you should go with the Dell XPS 8940 which was released in 2020. The HP EliteDesk 800 G4 SFF is older and entered production in 2018.

If you are looking for the smaller form factor the HP EliteDesk 800 G4 SFF is the right one for you. It is smaller than the Dell XPS 8940 and will fit more easily under your desk.

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 XPS 8940 as it is running a newer generation CPU. This is not to say that HP EliteDesk 800 G4 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.

None of the desktops has an advantage when it comes to the speed of the RAM being used. Both models support RAM speeds of up to 2666. Additionally, if you will be needing a lot of RAM, better go for the Dell XPS 8940 as it has the ability to run 128 GB of RAM. The HP EliteDesk 800 G4 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 G4 SFF has 11 USB ports. The Dell XPS 8940 is inferior in this regard and packs 10 USB ports. In any case, if you miss USB ports, you can always purchase a USB hub. It's great that both of the models have USB 3.1 ports which will allow you to exchange data with your peripherals at up to 10Gb/s. But if you need maximum connectivity, go with the HP EliteDesk 800 G4 SFF as it has 5 USB3.1 ports (the Dell XPS 8940 has 1).

DisplayPort is crucial for any desktop machine. It is good to see that both models are featuring DisplayPorts. However, the HP EliteDesk 800 G4 SFF comes with 2 ports, while the Dell XPS 8940 has only 1. If you are planning to use multiple monitors, the HP EliteDesk 800 G4 SFF is the better choice.

The Dell XPS 8940 comes with an HDMI port, while the HP EliteDesk 800 G4 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.

An M.2 SSD can be several times faster than a SATA one. Thus, we are happy to see that both models support the M.2 interface. However, the HP EliteDesk 800 G4 SFF has 1 M.2 slots while the Dell XPS 8940 comes with just 1.

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 G4 SFF comes with a decent 250 Watt PSU, but the Dell XPS 8940 has a more powerful one rated at 500 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_XPS_8940_motherboard.jpg motherboard layoutHP_EliteDesk_800_G4_SFF_motherboard.jpg motherboard layout