Acer Veriton X4665g vs. Fujitsu Esprimo Q520

Comparison and Differences

Acer_Veriton_X4665g.jpg case front and back pannelFujitsu_Esprimo_Q520.jpg case front and back pannel
Model
Form factorSmallMicro
CPU optionsIntel Gen8&9 i3/i5/i7; Pentium; CeleronIntel Gen4 i3/i5/i7
ChipsetB365H81
Dedicated GPU *Radeon RX 6400 Low ProfileN.A.
RAMUDIMM DDR4-2666SODIMM DDR3-1600
RAM slots22
RAM speed2666 MT/s1600 MT/s
RAM max64 GB16 GB
USB ports(2x) USB-A 3.0; (4x) USB-A 2.0; (2x) USB-A 3.1(2x) USB-A 3.0; (4x) USB-A 2.0
Video portsDisplayPort 1.2; HDMI 1.4; VGADisplayPort 1.2; DVI
Other portsRJ45; (2x) Mic, Speaker; Line in; Line out; PS/2 ports; SerialRJ45; Line in; Line out; Card reader
Optional portsParallel; SerialVGA (DVI to VGA adapter)
SATA ports32
PCI slotsPCIe 2.0 x16; PCIe 2.0 x1; PCIN.A.
M.2 slotsM.2 2280/2230 M-key (PCIe 2.0 x4, NVMe); M.2 2230 (WiFi/BT)N.A.
Drive bays3.5in; 5.25 inch2.5in; 5.25 inch
PSU180/300 W65 W
Weight7.00 kg (15.40 lb)1.60 kg (3.53 lb)
Released20182014
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 X4665g and Fujitsu Esprimo Q520

If you are looking for a more modern desktop, then you should go with the Acer Veriton X4665g which was released in 2018. The Fujitsu Esprimo Q520 is older and entered production in 2014.

If you are looking for the smaller form factor the Fujitsu Esprimo Q520 is the right one for you. It is smaller than the Acer Veriton X4665g 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 Acer Veriton X4665g as it is running a newer generation CPU. This is not to say that Fujitsu Esprimo Q520 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 Acer Veriton X4665g is using the faster 2666 MT/s RAM. The Fujitsu Esprimo Q520 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 Acer Veriton X4665g as it has the ability to run 64 GB of RAM. The Fujitsu Esprimo Q520 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 Acer Veriton X4665g has 8 USB ports. The Fujitsu Esprimo Q520 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. What is nice about the Acer Veriton X4665g, is that it has 2 USB 3.1 port(s) which allows transfer of up to 10Gb/s. Unfortunately, the Fujitsu Esprimo Q520 has no such port, thus restricting your transfer speeds significantly. For people who want to use external drives on regular basis, this might be an issue.

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.

The Acer Veriton X4665g comes with an HDMI port, while the Fujitsu Esprimo Q520 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 Acer Veriton X4665g is better equipped as it comes with 3 SATA slot(s), while the Fujitsu Esprimo Q520 has 2 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 Acer Veriton X4665g. Sadly, the Fujitsu Esprimo Q520 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 Fujitsu Esprimo Q520 comes with a decent 65 Watt PSU, but the Acer Veriton X4665g has a more powerful one rated at 300 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_X4665g_motherboard.jpg motherboard layoutFujitsu_Esprimo_Q520_motherboard.jpg motherboard layout