Acer Veriton N4640g vs. Fujitsu Esprimo D556

Comparison and Differences

Acer_Veriton_N4640g.jpg case front and back pannelFujitsu_Esprimo_D556.jpg case front and back pannel
Model
Form factorMicroSmall
CPU optionsIntel Gen6 i3/i5/i7; Pentium; CeleronIntel Gen6 i3/i5/i7; Pentium; Celeron
ChipsetH110H110
Dedicated GPU *N.A.Radeon RX 6400 Low Profile
RAMSODIMM DDR4-2400UDIMM DDR4-2133
RAM slots22
RAM speed2400 MT/s2133 MT/s
RAM max32 GB32 GB
USB ports(4x) USB-A 3.0; (2x) USB-A 2.0(4x) USB-A 3.0; (6x) USB-A 2.0
Video portsHDMI 1.2; DVIDisplayPort 1.2; DVI
Other portsRJ45; (3x) Audio;RJ45; Headphones; Mic; Line in; Line out; PS/2
Optional portsN.AVGA; eSATA
SATA ports03
PCI slotsN.A.PCIe 3.0 x16; PCIe 2.0 x1; PCIe 2.0 x16 (wired x4)
M.2 slotsM.2 2280 B-Key (SATA only)M.2 2280/2230 M-key (PCIe 2.0 x2, SSD)
Drive bays2.5in(3x) 3.5in; 5.25 inch
PSU60/90/135 W280 W
Weight4.00 kg (8.81 lb)8.00 kg (17.64 lb)
Released20172015
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 Acer Veriton N4640g and Fujitsu Esprimo D556

If you are looking for a more modern desktop, then you should go with the Acer Veriton N4640g which was released in 2017. The Fujitsu Esprimo D556 is older and entered production in 2015.

If you are looking for the smaller form factor the Acer Veriton N4640g is the right one for you. It is smaller than the Fujitsu Esprimo D556 and will fit more easily under your desk.

Processor

The two models have the same generation of Intel processors. We think that the 6 generation of Intel Processors have enough power to execute all of the home and office tasks that most people will care to do.

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 Acer Veriton N4640g is using the faster 2400 MT/s RAM. The Fujitsu Esprimo D556 is slower by supporting RAM speeds of up to 2133 MT/s. In addition, you will be able to install the same amount of RAM in both models, and most probably 32 GB of RAM will be enough for most people. However, if you will be needing more RAM, make sure to check other desktop models too.

Ports

In total the Fujitsu Esprimo D556 has 10 USB ports. The Acer Veriton N4640g is inferior in this regard and packs 6 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.

Unfortunately, only the Fujitsu Esprimo D556 has a DisplayPort. The Acer Veriton N4640g does not have one? Don't worry though, nowadays video adapters are cheap and you can get almost any combination of conversion types.

The Acer Veriton N4640g comes with an HDMI port, while the Fujitsu Esprimo D556 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 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 Acer Veriton N4640g has 0 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 Acer Veriton N4640g comes with a decent 90 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

Acer_Veriton_N4640g_motherboard.jpg motherboard layoutFujitsu_Esprimo_D556_motherboard.jpg motherboard layout