Acer Veriton X2660g vs. HP ProDesk 400 G2.5 SFF

Comparison and Differences

Acer_Veriton_X2660g.jpg case front and back pannel

HP_ProDesk_400_G2.5_SFF.jpg case front and back pannel

Model
Form factor	Small	Small
CPU options	Intel Gen8 i3/i5/i7; Pentium; Celeron	Intel Gen4 i3/i5/i7; Celeron; Pentium;
Chipset	B360	H81
Dedicated GPU *	Radeon RX 6400 Low Profile	GeForce GT 1030 Low Profile
RAM	UDIMM DDR4-2666	DIMM DDR3-1600
RAM slots	2	2
RAM speed	2666 MT/s	1600 MT/s
RAM max	32 GB	16 GB
USB ports	(2x) USB-A 3.0; (4x) USB-A 2.0; (2x) USB-A 3.1	(2x)USB-A 3.0; (6x)USB-A 2.0;
Video ports	DisplayPort 1.2; HDMI 1.4; VGA	DisplayPort; VGA;
Other ports	RJ45; (2x) Mic, Speaker; Line in; Line out; PS/2 ports; Serial	RJ45; Hdph; Mic; Line-Out; Line-In; Serial; (2x) PS2;
Optional ports	Serial; Parallel; Card reader	Media card reader; Serial; Parallel;
SATA ports	4	3
PCI slots	PCIe 3.0 x16; (2x) PCIe 3.0 x1; PCI	PCIe x16; PCIe x1;
M.2 slots	M.2 2280/2230 M-key (PCIe 3.0 x4, NVMe); M.2 2230 (WiFi/BT)	N.A.
Drive bays	3.5in; 5.25 inch slim	3.5in; 5.25in (slim)
PSU	180/250 W	180 W
Weight	5.00 kg (11.02 lb)	4.5 kg (9.92 lb)
Released	2018	2014
Manual	link	link
Price**	Check Price	Check 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 Acer Veriton X2660g and HP ProDesk 400 G2.5 SFF

If you are looking for a more modern desktop, then you should go with the Acer Veriton X2660g which was released in 2018. The HP ProDesk 400 G2.5 SFF is older and entered production in 2014.

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 Acer Veriton X2660g as it is running a newer generation CPU. This is not to say that HP ProDesk 400 G2.5 SFF 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 X2660g is using the faster 2666 MT/s RAM. The HP ProDesk 400 G2.5 SFF 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 X2660g as it has the ability to run 32 GB of RAM. The HP ProDesk 400 G2.5 SFF can do a bit less at max 16 GB. Most of the times, this should be sufficient for the majority of users.

Ports

Both models have the same amount of USB ports for total count of 8. If this is not enough, using a USB hub is always a viable option. What is nice about the Acer Veriton X2660g, is that it has 2 USB 3.1 port(s) which allows transfer of up to 10Gb/s. Unfortunately, the HP ProDesk 400 G2.5 SFF 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 X2660g comes with an HDMI port, while the HP ProDesk 400 G2.5 SFF 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 X2660g is better equipped as it comes with 4 SATA slot(s), while the HP ProDesk 400 G2.5 SFF has 3 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 X2660g. Sadly, the HP ProDesk 400 G2.5 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 ProDesk 400 G2.5 SFF comes with a decent 180 Watt PSU, but the Acer Veriton X2660g has a more powerful one rated at 250 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.