Alienware Aurora R12 vs. Dell OptiPlex 5090 SFF

Comparison and Differences

Alienware_Aurora_R12.jpg case front and back pannelDell_OptiPlex_5090_SFF.jpg case front and back pannel
Model
Form factorMid TowerSmall
CPU optionsIntel Gen11 i3/i5/i7/i9;Intel Gen10&11 i3/i5/i7;
ChipsetZ490Q570
Dedicated GPU *GeForce RTX 3090AMD Radeon RX 6400 Low Profile
RAMDIMM DDR4-3200/3400DIMM DDR4-2666/2933/3200
RAM slots44
RAM speed3400 MT/s3200 MT/s
RAM max128 GB128 GB
USB ports(6x) USB 3.0 Type A; USB 3.0 Type C; (6x) USB-A 2.0; USB 3.1 Type C; USB 3.1 Type A;USB 3.1 Type C; (x5) USB-A 3.0; (x4) USB-A 2.0;
Video portsN/A(2x) Display Port 1.4;
Other portsRJ45; Headset; Line-Out; Line-In; S/PDFI optical/analog; Front, side, center, rare outputs;RJ45; Headset; Line-Out/In; Card reader;
Optional portsDisplayPortVGA /DisplayPort 1.4/HDMI 2.0b/USB 3.2 Gen2 Type-C Port Alt-mode;
SATA ports44
PCI slots(x2) PCIe 3.0 x16; (x2) PCIe 3.0 x4;N.A.
M.2 slotsM.2 2280/2230 M-key (PCIe 4.0 x4, NVMe); M.2 2230 (WiFi/BT); M.2 2280/2230 M-key (PCIe 3.0 x4, NVMe); M.2 2230 (WiFi/BT)
Drive bays(2x) 2.5in; 3.25in;2.5in
PSU550/1000 W200/300 W
Weight17.80 kg (39.24 lb)5.65 kg (12.53 lb)
Released20212021
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 Aurora R12 and Dell OptiPlex 5090 SFF

Both computers, the Dell OptiPlex 5090 SFF and the Alienware Aurora R12, were released during the same year - 2021.

If you are looking for the smaller form factor the Dell OptiPlex 5090 SFF is the right one for you. It is smaller than the Alienware Aurora R12 and will fit more easily under your desk.

Processor

The two models have the same generation of Intel processors. We think that the 11 generation of Intel Processors have enough power to execute all of the home and office tasks that most people will care to do.

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 R12 is using the faster 3400 MT/s RAM. The Dell OptiPlex 5090 SFF is slower by supporting RAM speeds of up to 3200 MT/s. In addition, you will be able to install the same amount of RAM in both models, and most probably 128 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 R12 has 15 USB ports. The Dell OptiPlex 5090 SFF is inferior in this regard and packs 10 USB ports. In any case, if you miss USB ports, you can always purchase a USB hub. It's great that both of the models have USB 3.1 ports which will allow you to exchange data with your peripherals at up to 10Gb/s. But if you need maximum connectivity, go with the Alienware Aurora R12 as it has 3 USB3.1 ports (the Dell OptiPlex 5090 SFF has 1).

Unfortunately, only the Dell OptiPlex 5090 SFF has a DisplayPort. The Alienware Aurora R12 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 Dell OptiPlex 5090 SFF comes with a decent 300 Watt PSU, but the Alienware Aurora R12 has a more powerful one rated at 1000 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_Aurora_R12_motherboard.jpg motherboard layoutDell_OptiPlex_5090_SFF_motherboard.jpg motherboard layout