HP EliteDesk 800 G1 USDT vs. HP ProDesk 400 G2 SFF

Comparison and Differences

HP_EliteDesk_800_G1_USDT.jpg case front and back pannelHP_ProDesk_400_G2_SFF.jpg case front and back pannel
Model
Form factorSmallDesktop
CPU optionsIntel Gen4 i3/i5/i7; Celeron; Pentium;Intel Gen4 i3/i5/i7; Celeron; Pentium;
ChipsetQ87H81
Dedicated GPU *AMD Radeon HD 7650AGeForce GTX 1650 Low Profile
RAMSODIMM DDR3-1600 DIMM DDR3-1600
RAM slots42
RAM speed1600 MT/s1600 MT/s
RAM max32 GB16 GB
USB ports(4x)USB-A 3.0; (6x)USB-A 2.0; (2x)USB-A 3.0; (6x)USB-A 2.0;
Video ports(2x) DisplayPort 1.2; VGA;DisplayPort; VGA;
Other ports(2x) PS2; RJ45; Hdph; Mic; Line-Out; Line-In; RJ45; Hdph; Mic; Line-Out; Line-In; Serial; (2x) PS2;
Optional portsMedia card reader (USB 3.0);Media card reader; Serial; Parallel;
SATA ports13
PCI slotsMobile PCI Express Module; mPCIe 2.0 x1 (WiFi);PCIe x16; (3x) PCIe x1;
M.2 slotsM.2 (mSATA only);N.A.
Drive bays2.5in; 5.25in (slim);2.5in; (2x) 3.5in; 5.25in (slim)
PSU135/180 W240 W
Weight3.1 kg (6.8 lb)5.9 kg (13.0 lb)
Released20132014
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 HP EliteDesk 800 G1 USDT and HP ProDesk 400 G2 SFF

If you are looking for a more modern desktop, then you should go with the HP ProDesk 400 G2 SFF which was released in 2014. The HP EliteDesk 800 G1 USDT is older and entered production in 2013.

If you are looking for the smaller form factor the HP EliteDesk 800 G1 USDT is the right one for you. It is smaller than the HP ProDesk 400 G2 SFF and will fit more easily under your desk.

Processor

The two models have the same generation of Intel processors. We think that the 4 generation of Intel Processors have enough power to execute all of the home and office tasks that most people will care to do.

Memory

The HP EliteDesk 800 G1 USDT has 4 RAM slots while the HP ProDesk 400 G2 SFF has only 2 slot(s). This is not something to worry about. Just make sure you take it into consideration when planning how much RAM you are going to use.

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 1600. Additionally, if you will be needing a lot of RAM, better go for the HP EliteDesk 800 G1 USDT as it has the ability to run 32 GB of RAM. The HP ProDesk 400 G2 SFF can do a bit less at max 16 GB. Most of the times, this should be sufficient for the majority of users.

Ports

In total the HP EliteDesk 800 G1 USDT has 10 USB ports. The HP ProDesk 400 G2 SFF is inferior in this regard and packs 8 USB ports. In any case, if you miss USB ports, you can always purchase a USB hub. None of the desktop models has a USB 3.1 port (10Gb/s), so if you need a fast connection to your peripherals, like external Solid State Drive, you will need to look elsewhere.

DisplayPort is crucial for any desktop machine. It is good to see that both models are featuring DisplayPorts. However, the HP EliteDesk 800 G1 USDT comes with 2 ports, while the HP ProDesk 400 G2 SFF has only 1. If you are planning to use multiple monitors, the HP EliteDesk 800 G1 USDT is the better choice.

None of the models has an HDMI port. If your monitor supports only the HDMI interface, you will need to buy an adapter. Such adapters are cheap so nothing to worry about.

SATA ports are placed on the system board and it is where you connect your HDD, SSD and Optical Disk Drives. More SATA slots will allow you to have more drives running at the same time. In this regard the HP ProDesk 400 G2 SFF is better equipped as it comes with 3 SATA slot(s), while the HP EliteDesk 800 G1 USDT has 1 slot(s).

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 HP EliteDesk 800 G1 USDT. Sadly, the HP ProDesk 400 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 G1 USDT comes with a decent 180 Watt PSU, but the HP ProDesk 400 G2 SFF has a more powerful one rated at 240 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

HP_EliteDesk_800_G1_USDT_motherboard.jpg motherboard layoutHP_ProDesk_400_G2_SFF_motherboard.jpg motherboard layout