Alienware Area 51 R4 vs. Alienware Aurora R9

Comparison and Differences

Alienware_Area_51_R4.jpg case front and back pannelAlienware_Aurora_R9.jpg case front and back pannel
Model
Form factorMid TowerMid Tower
CPU optionsIntel Gen7&9&10 Core X-seriesIntel Gen9 i3/i5/i7/i9;
ChipsetX299 PCHZ370
Dedicated GPU *GeForce RTX 3090GeForce RTX 2080 Ti
RAMDIMM DDR4-2666/2933DIMM DDR4-2666/3000
RAM slots44
RAM speed2933 MT/s3000 MT/s
RAM max64 GB64 GB
USB ports(8x) USB 3.0 Type A; (2x) USB-A 2.0; USB 3.1 Type C; USB 3.1 Type A;(6x) USB 3.0 Type A; (5x) USB-A 2.0; USB 3.1 Type C; USB 3.1 Type A; USB 3.0 Type C;
Video portsN/ADisplayPort 1.4;
Other portsRJ45; Headset; Line-Out; Line-In; S/PDFI optical; Card Reader;RJ45; Headset; Line-Out; Line-In; S/PDFI optical/analog; Front, side, center, rare outputs;
Optional portsN.A.N.A.
SATA ports44
PCI slots(x3) PCIe 3.0 x16; (x2) PCIe 3.0 x8; PCIe 3.0 x4;(x2) PCIe 3.0 x16; (x2) PCIe 3.0 x4;
M.2 slotsM.2 2230 (WiFi/BT); M.2 2280 M-key (PCIe 3.0 x2, NVMe);M.2 2230 (WiFi/BT); M.2 2242/2260/2280 (PCIe 3.0 x4, NVMe);
Drive bays(2x) 2.5in; (x3) 3.25in; 5.25in;(2x) 2.5in; 3.25in; 9.5mm; U.2
PSU850/1500 W460/850 W
Weight28 kg (61.73 lbs)14.82 kg (32.67 lb)
Released20152018
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 Alienware Area 51 R4 and Alienware Aurora R9

If you are looking for a more modern desktop, then you should go with the Alienware Aurora R9 which was released in 2018. The Alienware Area 51 R4 is older and entered production in 2015.

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 Alienware Area 51 R4 as it is running a newer generation CPU. This is not to say that Alienware Aurora R9 is bad - it can still run some powerful CPUs, albeit being an older generation.

Memory

Both models have have equal amount of ram slots (4 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 Alienware Aurora R9 is using the faster 3000 MT/s RAM. The Alienware Area 51 R4 is slower by supporting RAM speeds of up to 2933 MT/s. In addition, you will be able to install the same amount of RAM in both models, and most probably 64 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 Alienware Aurora R9 has 14 USB ports. The Alienware Area 51 R4 is inferior in this regard and packs 12 USB ports. In any case, if you miss USB ports, you can always purchase a USB hub. Both of the models have USB 3.1 ports which will allow you to exchange data with your peripherals at up to 10Gb/s. This is especially crucial if you are using external drives on a regular basis.

Unfortunately, only the Alienware Aurora R9 has a DisplayPort. The Alienware Area 51 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 slots are located on the motherboard and it is where SSD, HDD and Optical Disk Drives are connected. Each of the two models being compared have 4 SATA slot(s). Keep in mind that having too few SATA slots might limit your options for connecting additional memory drives.

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 Alienware Aurora R9 comes with a decent 850 Watt PSU, but the Alienware Area 51 R4 has a more powerful one rated at 1500 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

Alienware_Area_51_R4_motherboard.jpg motherboard layoutAlienware_Aurora_R9_motherboard.jpg motherboard layout