Fujitsu Esprimo D556 vs. HP ProDesk 400 G6 SFF

Comparison and Differences

Fujitsu_Esprimo_D556.jpg case front and back pannelHP_ProDesk_400_G6_SFF.jpg case front and back pannel
Model
Form factorSmallSmall
CPU optionsIntel Gen6 i3/i5/i7; Pentium; CeleronIntel Gen8&9 i3/i5/i7; Celeron; Pentium;
ChipsetH110B360
Dedicated GPU *Radeon RX 6400 Low ProfileGeForce GT 1030 Low Profile
RAMUDIMM DDR4-2133DIMM DDR4-2666
RAM slots22
RAM speed2133 MT/s2666 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 portsDisplayPort 1.2; DVIDisplayPort; VGA;
Other portsRJ45; Headphones; Mic; Line in; Line out; PS/2RJ45; Headset; Line-In; Line-Out;
Optional portsVGA; eSATASD card reader; Serial; Serial and (2x) PS2; DP/HDMI/VGA/USB-C;
SATA ports32
PCI slotsPCIe 3.0 x16; PCIe 2.0 x1; PCIe 2.0 x16 (wired x4)PCIe 3.0 x16; PCIe 3.0 x1 ;
M.2 slotsM.2 2280/2230 M-key (PCIe 2.0 x2, SSD)M.2 2280/2230 M-key (PCIe x4); M.2 2230 (WiFi/BT)
Drive bays(3x) 3.5in; 5.25 inch(2x) 2.5/3.5in; 5.25in (slim);
PSU280 W180 W
Weight8.00 kg (17.64 lb)4.6 kg (10.14 lb)
Released20152019
Manuallinklink
Price**Check PriceCheck Price

** As an Amazon associate we earn from qualifying purchases.
* 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 Fujitsu Esprimo D556 and HP ProDesk 400 G6 SFF

If you are looking for a more modern desktop, then you should go with the HP ProDesk 400 G6 SFF which was released in 2019. The Fujitsu Esprimo D556 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 HP ProDesk 400 G6 SFF as it is running a newer generation CPU. This is not to say that Fujitsu Esprimo D556 is bad - it can still run some powerful CPUs, albeit being an older generation.

Memory

Both models have have equal amount of ram slots (2 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 HP ProDesk 400 G6 SFF is using the faster 2666 MT/s RAM. The Fujitsu Esprimo D556 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 HP ProDesk 400 G6 SFF as it has the ability to run 64 GB of RAM. The Fujitsu Esprimo D556 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 Fujitsu Esprimo D556 has 10 USB ports. The HP ProDesk 400 G6 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.

The DisplayPort is usually the more popular video port used with desktops and laptops, while the HDMI is used predominantly in consumer electronics. That's why, it is good to see that both of the models come with a DisplayPort.

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 Fujitsu Esprimo D556 is better equipped as it comes with 3 SATA slot(s), while the HP ProDesk 400 G6 SFF has 2 slot(s).

When your goal is to have the fastest SSD transfer speeds, an M.2 interface is crucial. Thus, it is good that both models have M.2 SSD slots. Today M.2 SSDs are not much more expensive than the average SATA drives, so it really does not make sense to invest in SATA drives anymore.

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 ProDesk 400 G6 SFF comes with a decent 180 Watt PSU, but the Fujitsu Esprimo D556 has a more powerful one rated at 280 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

Fujitsu_Esprimo_D556_motherboard.jpg motherboard layoutHP_ProDesk_400_G6_SFF_motherboard.jpg motherboard layout