HP EliteDesk 800 G1 USDT vs. HP ProDesk 400 G4 SFF

Comparison and Differences

HP_EliteDesk_800_G1_USDT.jpg case front and back pannelHP_ProDesk_400_G4_SFF.jpg case front and back pannel
Model
Form factorSmallSmall
CPU optionsIntel Gen4 i3/i5/i7; Celeron; Pentium;Intel Gen6&7 i3/i5/i7; Celeron; Pentium;
ChipsetQ87H270
Dedicated GPU *AMD Radeon HD 7650AGeForce GT 1030 Low Profile
RAMSODIMM DDR3-1600 DIMM DDR4-2400
RAM slots42
RAM speed1600 MT/s2400 MT/s
RAM max32 GB64 GB
USB ports(4x)USB-A 3.0; (6x)USB-A 2.0; (4x)USB-A 3.0; (4x)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; Headset; Line-Out; Line-In;
Optional portsMedia card reader (USB 3.0);SD card reader; Serial and (2x) PS2;
SATA ports12
PCI slotsMobile PCI Express Module; mPCIe 2.0 x1 (WiFi);PCIe 3.0 x16; PCIe 3.0 x4;
M.2 slotsM.2 (mSATA only);M.2 2230 (WiFi/BT)
Drive bays2.5in; 5.25in (slim);2.5in/3.5in; 5.25in (slim)
PSU135/180 W180 W
Weight3.1 kg (6.8 lb)4.6 kg (10.14 lb)
Released20132017
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 G4 SFF

If you are looking for a more modern desktop, then you should go with the HP ProDesk 400 G4 SFF which was released in 2017. The HP EliteDesk 800 G1 USDT is older and entered production in 2013.

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 HP ProDesk 400 G4 SFF as it is running a newer generation CPU. This is not to say that HP EliteDesk 800 G1 USDT is bad - it can still run some powerful CPUs, albeit being an older generation.

Memory

The HP EliteDesk 800 G1 USDT has 4 RAM slots while the HP ProDesk 400 G4 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.

The HP ProDesk 400 G4 SFF is using the faster 2400 MT/s RAM. The HP EliteDesk 800 G1 USDT is slower by supporting RAM speeds of up to 1600 MT/s. Additionally, if you will be needing a lot of RAM, better go for the HP ProDesk 400 G4 SFF as it has the ability to run 64 GB of RAM. The HP EliteDesk 800 G1 USDT can do a bit less at max 32 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 G4 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 G4 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 G4 SFF is better equipped as it comes with 2 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 G4 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

Looking at the Power Supply Unit (PSU) of the two models we don't see any differences. For either of them you get a maximum power of 180 Watts. However be careful, many models have more than one power supply option. When buying your computer, it is a good idea to get a version with the most powerful PSU. This will potentially allow you to upgrade to a more powerful GPU for example.

Motherboard

HP_EliteDesk_800_G1_USDT_motherboard.jpg motherboard layoutHP_ProDesk_400_G4_SFF_motherboard.jpg motherboard layout