Alienware Aurora R7 vs. Dell OptiPlex 3090 M

Comparison and Differences

Alienware_Aurora_R7.jpg case front and back pannelDell_OptiPlex_3090_M.jpg case front and back pannel
Model
Form factorMid TowerMicro
CPU optionsIntel Gen8 i3/i5/i7;Intel Gen10 i3/i5/i7; Pentium; Celeron;
ChipsetZ370Q470
Dedicated GPU *GeForce RTX 2070 SuperN.A.
RAMDIMM DDR4-2666/2933SODIMM DDR4-2666/2933
RAM slots42
RAM speed2933 MT/s2933 MT/s
RAM max64 GB64 GB
USB ports(6x) USB 3.0 Type A; (6x) USB-A 2.0; USB 3.1 Type C; USB 3.1 Type A; USB 3.0 Type C;(4x) USB-A 3.0; (2x) 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;
Optional portsDisplayPortHDMI 2.0b/Displayport/VGA;
SATA ports41
PCI slots(x2) PCIe 3.0 x16; (x2) PCIe 3.0 x4;N.A.
M.2 slotsM.2 2230 (WiFi/BT); M.2 2280/2260/2240 M-key (PCIe 3.0 x2, NVMe); M.2 2280/2230 M-key (PCIe 3.0 x4, NVMe); M.2 2230 (WiFi/BT)
Drive bays(2x) 2.5in; 3.25in; 9.5mm; U.22.5in;
PSU460/850 W65 W
Weight14.62 kg (32.23 lb)1.28 kg (2.82 lb)
Released20182021
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 R7 and Dell OptiPlex 3090 M

If you are looking for a more modern desktop, then you should go with the Dell OptiPlex 3090 M which was released in 2021. The Alienware Aurora R7 is older and entered production in 2018.

If you are looking for the smaller form factor the Dell OptiPlex 3090 M is the right one for you. It is smaller than the Alienware Aurora R7 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 Dell OptiPlex 3090 M as it is running a newer generation CPU. This is not to say that Alienware Aurora R7 is bad - it can still run some powerful CPUs, albeit being an older generation.

Memory

The Alienware Aurora R7 has 4 RAM slots while the Dell OptiPlex 3090 M 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.

None of the desktops has an advantage when it comes to the speed of the RAM being used. Both models support RAM speeds of up to 2933. 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 R7 has 15 USB ports. The Dell OptiPlex 3090 M 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. What is nice about the Alienware Aurora R7, is that it has 3 USB 3.1 port(s) which allows transfer of up to 10Gb/s. Unfortunately, the Dell OptiPlex 3090 M 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 Dell OptiPlex 3090 M has a DisplayPort. The Alienware Aurora R7 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 R7 is better equipped as it comes with 4 SATA slot(s), while the Dell OptiPlex 3090 M 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 Dell OptiPlex 3090 M comes with a decent 65 Watt PSU, but the Alienware Aurora R7 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.

Motherboard

Alienware_Aurora_R7_motherboard.jpg motherboard layoutDell_OptiPlex_3090_M_motherboard.jpg motherboard layout