Alienware Aurora R6 vs. Fujitsu Esprimo D9012
Comparison and Differences
Differences between Alienware Aurora R6 and Fujitsu Esprimo D9012
If you are looking for the smaller form factor the Fujitsu Esprimo D9012 is the right one for you. It is smaller than the Alienware Aurora R6 and will fit more easily under your desk.
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 Fujitsu Esprimo D9012 as it is running a newer generation CPU. This is not to say that Alienware Aurora R6 is bad - it can still run some powerful CPUs, albeit being an older generation.
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 Fujitsu Esprimo D9012 is using the faster 3200 MT/s RAM. The Alienware Aurora R6 is slower by supporting RAM speeds of up to 2666 MT/s. Additionally, if you will be needing a lot of RAM, better go for the Fujitsu Esprimo D9012 as it has the ability to run 128 GB of RAM. The Alienware Aurora R6 can do a bit less at max 64 GB. Most of the times, this should be sufficient for the majority of users.
In total the Alienware Aurora R6 has 15 USB ports. The Fujitsu Esprimo D9012 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. 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 Fujitsu Esprimo D9012 as it has 5 USB3.1 ports (the Alienware Aurora R6 has 2).
Unfortunately, only the Fujitsu Esprimo D9012 has a DisplayPort. The Alienware Aurora R6 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 Fujitsu Esprimo D9012 is better equipped as it comes with 5 SATA slot(s), while the Alienware Aurora R6 has 4 slot(s).
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 Fujitsu Esprimo D9012 has 1 M.2 slots while the Alienware Aurora R6 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!
Having a Power Supply Unit with high power rating is important, if you are going to use components which require extra power. The Fujitsu Esprimo D9012 comes with a decent 300 Watt PSU, but the Alienware Aurora R6 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.