Alienware Aurora R5 vs. HP ProDesk 400 G1 Mini

Comparison and Differences

Alienware_Aurora_R5.jpg case front and back pannel

HP_ProDesk_400_G1_Mini.jpg case front and back pannel

Model
Form factor	Mid Tower	Micro
CPU options	Intel Gen6 i3/i5/i7;	Intel Gen4 i3/i5/i7; Celeron; Pentium;
Chipset	Z170	H81
Dedicated GPU *	GeForce RTX 2070 Super	N.A.
RAM	DIMM DDR4-2133/2400	SODIMM DDR3-1600
RAM slots	4	2
RAM speed	2400 MT/s	1600 MT/s
RAM max	64 GB	16 GB
USB ports	(5x) USB 3.0 Type A; (6x) USB-A 2.0; USB 3.1 Type C; USB 3.1 Type A;	(2x)USB-A 3.0; (4x)USB-A 2.0;
Video ports	N/A	DisplayPort v1.2; VGA;
Other ports	RJ45; Headset; Line-Out; Line-In; S/PDFI optical/analog; Front, side, center, rare outputs;	RJ45; Hdph; Mic;
Optional ports	DisplayPort	N.A.
SATA ports	4	1
PCI slots	(x2) PCIe 3.0 x16; (x2) PCIe 3.0 x4;	N.A.
M.2 slots	M.2 2230 (WiFi/BT); M.2 2280/2260/2240 M-key (PCIe 3.0 x2, NVMe);	M.2 2280 M-key (PCIe); M.2 2230 (WiFi/BT)
Drive bays	(2x) 2.5in; 3.25in;	2.5in;
PSU	460/850 W	65 W
Weight	14.62 kg (32.23 lb)	1.3 kg (2.9 lb)
Released	2015	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 Alienware Aurora R5 and HP ProDesk 400 G1 Mini

If you are looking for a more modern desktop, then you should go with the Alienware Aurora R5 which was released in 2015. The HP ProDesk 400 G1 Mini is older and entered production in 2014.

If you are looking for the smaller form factor the HP ProDesk 400 G1 Mini is the right one for you. It is smaller than the Alienware Aurora R5 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 Alienware Aurora R5 as it is running a newer generation CPU. This is not to say that HP ProDesk 400 G1 Mini is bad - it can still run some powerful CPUs, albeit being an older generation.

Memory

The Alienware Aurora R5 has 4 RAM slots while the HP ProDesk 400 G1 Mini 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 Alienware Aurora R5 is using the faster 2400 MT/s RAM. The HP ProDesk 400 G1 Mini 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 Alienware Aurora R5 as it has the ability to run 64 GB of RAM. The HP ProDesk 400 G1 Mini 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 Alienware Aurora R5 has 13 USB ports. The HP ProDesk 400 G1 Mini 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 Alienware Aurora R5, is that it has 2 USB 3.1 port(s) which allows transfer of up to 10Gb/s. Unfortunately, the HP ProDesk 400 G1 Mini 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.

Unfortunately, only the HP ProDesk 400 G1 Mini has a DisplayPort. The Alienware Aurora R5 does not have one? Don't worry though, nowadays video adapters are cheap and you can get almost any combination of conversion types.

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 Alienware Aurora R5 is better equipped as it comes with 4 SATA slot(s), while the HP ProDesk 400 G1 Mini has 1 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 G1 Mini comes with a decent 65 Watt PSU, but the Alienware Aurora R5 has a more powerful one rated at 850 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.