Alienware Aurora R13 vs. Dell OptiPlex 7090 SFF
Comparison and Differences
Differences between Alienware Aurora R13 and Dell OptiPlex 7090 SFF
Both computers, the Dell OptiPlex 7090 SFF and the Alienware Aurora R13, were released during the same year - 2021.
If you are looking for the smaller form factor the Dell OptiPlex 7090 SFF is the right one for you. It is smaller than the Alienware Aurora R13 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 R13 as it is running a newer generation CPU. This is not to say that Dell OptiPlex 7090 SFF 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 R13 is using the faster 4400 MT/s RAM. The Dell OptiPlex 7090 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 R13 has 12 USB ports. The Dell OptiPlex 7090 SFF is inferior in this regard and packs 9 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 Dell OptiPlex 7090 SFF as it has 3 USB3.1 ports (the Alienware Aurora R13 has 2).
Unfortunately, only the Dell OptiPlex 7090 SFF has a DisplayPort. The Alienware Aurora R13 does not have one? Don't worry though, nowadays video adapters are cheap and you can get almost any combination of conversion types.
The Dell OptiPlex 7090 SFF comes with an HDMI port, while the Alienware Aurora R13 does not support the interface. Of course missing HDMI port is something that can be easily fixed with a good adapter (e.g. DisplayPort to HDMI).
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 3 SATA slot(s). Keep in mind that having too few SATA slots might limit your options for connecting additional memory drives.
An M.2 SSD can be several times faster than a SATA one. Thus, we are happy to see that both models support the M.2 interface. However, the Dell OptiPlex 7090 SFF has 1 M.2 slots while the Alienware Aurora R13 comes with just 1.
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 7090 SFF comes with a decent 300 Watt PSU, but the Alienware Aurora R13 has a more powerful one rated at 750 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
