Alienware Area 51 R5 vs. Fujitsu Esprimo D756

Comparison and Differences

Alienware_Area_51_R5.jpg case front and back pannelFujitsu_Esprimo_D756.jpg case front and back pannel
Model
Form factorMid TowerSmall
CPU optionsIntel Gen7&9&10 Core X-seriesIntel Gen6 i3/i5/i7; Pentium; Celeron
ChipsetX299 PCHQ150
Dedicated GPU *GeForce RTX 3090Radeon RX 6400 Low Profile
RAMDIMM DDR4-2666/3200UDIMM DDR4-2133
RAM slots44
RAM speed3200 MT/s2133 MT/s
RAM max64 GB64 GB
USB ports(9x) USB 3.0 Type A; (2x) USB-A 2.0; USB 3.1 Type C; USB 3.1 Type A;(4x) USB-A 3.0; (6x) USB-A 2.0
Video portsN/A(2x) DisplayPort 1.2; DVI
Other portsRJ45; Headset; Line-Out; Line-In; S/PDFI optical; Card Reader;RJ45; Headphones; (2x) Mic; Line in; Line out; PS/2; Serial
Optional portsN.A.Serial; Parallel; VGA; eSATA
SATA ports45
PCI slots(x3) PCIe 3.0 x16; (x2) PCIe 3.0 x8; PCIe 3.0 x4;PCIe 3.0 x16; (2x) PCIe 2.0 x1; PCIe 2.0 x16 (wired x4)
M.2 slotsM.2 2230 (WiFi/BT); M.2 2280 M-key (PCIe 3.0 x2, NVMe);M.2 2280/2230 M-key (PCIe 3.0 x4, SSD)
Drive bays(2x) 2.5in; (x3) 3.25in;(2x) 3.5in; 5.25 inch
PSU850/1500 W280 W
Weight28 kg (61.73 lbs)8.00 kg (17.64 lb)
Released20152016
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 R5 and Fujitsu Esprimo D756

If you are looking for a more modern desktop, then you should go with the Fujitsu Esprimo D756 which was released in 2016. The Alienware Area 51 R5 is older and entered production in 2015.

If you are looking for the smaller form factor the Fujitsu Esprimo D756 is the right one for you. It is smaller than the Alienware Area 51 R5 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 Area 51 R5 as it is running a newer generation CPU. This is not to say that Fujitsu Esprimo D756 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 Area 51 R5 is using the faster 3200 MT/s RAM. The Fujitsu Esprimo D756 is slower by supporting RAM speeds of up to 2133 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 Area 51 R5 has 13 USB ports. The Fujitsu Esprimo D756 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. What is nice about the Alienware Area 51 R5, is that it has 2 USB 3.1 port(s) which allows transfer of up to 10Gb/s. Unfortunately, the Fujitsu Esprimo D756 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 Fujitsu Esprimo D756 has a DisplayPort. The Alienware Area 51 R5 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 D756 is better equipped as it comes with 5 SATA slot(s), while the Alienware Area 51 R5 has 4 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 Fujitsu Esprimo D756 comes with a decent 280 Watt PSU, but the Alienware Area 51 R5 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_R5_motherboard.jpg motherboard layoutFujitsu_Esprimo_D756_motherboard.jpg motherboard layout