Alienware Aurora R4 vs. HP ProDesk 400 G2 Mini

Comparison and Differences

Alienware_Aurora_R4.jpg case front and back pannel

HP_ProDesk_400_G2_Mini.jpg case front and back pannel

Model
Form factor	Mid Tower	Micro
CPU options	Intel Gen3&4 i3/i5/i7;	Intel Gen6 i3/i5/i7; Celeron; Pentium;
Chipset	X79	H110
Dedicated GPU *	GeForce GTX 1650 Super	N.A.
RAM	DIMM DDR3-1333/1866	SODIMM DDR4-2133
RAM slots	4	2
RAM speed	1866 MT/s	2133 MT/s
RAM max	32 GB	32 GB
USB ports	USB 3.0 Type A; (4x) USB-A 2.0;	(4x)USB-A 3.0; (2x)USB-A 2.0;
Video ports	N/A	DisplayPort; VGA;
Other ports	RJ45; Headset; Line-Out; Line-In; S/PDFI optical/analog;	RJ45; Hdph; Mic; Serial;
Optional ports	N.A.	WiFi antenna;
SATA ports	3	1
PCI slots	(x2) PCIe 3.0 x16; (x2) PCIe 3.0 x1;	N.A.
M.2 slots	N.A.	M.2 2280 M-key (PCIe); M.2 2230 (WiFi/BT)
Drive bays	(4x) 3.25in; (4x) 2.5in; (2x) 5.25in;	2.5in;
PSU	525/875 W	65/90 W
Weight	20.41 kg (45.00 lbs)	1.3 kg (2.9 lb)
Released	2012	2016
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 R4 and HP ProDesk 400 G2 Mini

If you are looking for a more modern desktop, then you should go with the HP ProDesk 400 G2 Mini which was released in 2016. The Alienware Aurora R4 is older and entered production in 2012.

If you are looking for the smaller form factor the HP ProDesk 400 G2 Mini is the right one for you. It is smaller than the Alienware Aurora R4 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 HP ProDesk 400 G2 Mini as it is running a newer generation CPU. This is not to say that Alienware Aurora R4 is bad - it can still run some powerful CPUs, albeit being an older generation.

Memory

The Alienware Aurora R4 has 4 RAM slots while the HP ProDesk 400 G2 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 HP ProDesk 400 G2 Mini is using the faster 2133 MT/s RAM. The Alienware Aurora R4 is slower by supporting RAM speeds of up to 1866 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 HP ProDesk 400 G2 Mini has 6 USB ports. The Alienware Aurora R4 is inferior in this regard and packs 5 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 HP ProDesk 400 G2 Mini has a DisplayPort. The Alienware Aurora R4 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 R4 is better equipped as it comes with 3 SATA slot(s), while the HP ProDesk 400 G2 Mini has 1 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 HP ProDesk 400 G2 Mini. Sadly, the Alienware Aurora R4 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 Mini comes with a decent 90 Watt PSU, but the Alienware Aurora R4 has a more powerful one rated at 875 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.