Alienware Aurora R13 vs. Lenovo ThinkCentre M900 Small

Comparison and Differences

Alienware_Aurora_R13.jpg case front and back pannelLenovo_ThinkCentre_M900_Small.jpg case front and back pannel
Model
Form factorMid TowerSmall
CPU optionsIntel Gen12 i3/i5/i7/i9;Intel Gen6 i3/i5/i7; Celeron; Pentium;
ChipsetZ690Q170
Dedicated GPU *GeForce RTX 3090GeForce GT 1030 Low Profile
RAMDIMM DDR4-4400DIMM DDR4-2133
RAM slots44
RAM speed4400 MT/s2133 MT/s
RAM max128 GB64 GB
USB ports(5x) USB 3.0 Type A; (4x) USB-A 2.0; (2x) USB 3.1 Type C; USB 3.2 Type C;(8x)USB-A 3.0;
Video portsN/A(2x) DisplayPort 1.2; VGA;
Other portsRJ45; Headset; Line-Out; Line-In; S/PDFI optical/analog; Front, side, center, rare outputs;RJ45; Hdph; (2x) Mic; Line-Out; Line-In; Serial;
Optional portsN.A.2x USB-A 2.0; Media card reader (USB 2.0); (2x) PS2; eSATA;
SATA ports33
PCI slots(x2) PCIe 5.0 x16; (x2) PCIe 3.0 x4;PCIe 3.0 x16; PCIe 3.0 x1; PCIe 3.0 x16 (wired x4); M2 to PCI adapter (optional);
M.2 slotsM.2 2280/2230 M-key (PCIe 4.0 x4, NVMe); M.2 2230 (WiFi/BT); M.2 (WiFi/BT or PCI extension card)
Drive bays3.25in;2.5in; 2.5/3.5in; 5.25in (slim);
PSU460/750 WTFX 210 W
Weight16.05 kg (35.38 lb)9 kg (19.8 lbs)
Released20212015
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 R13 and Lenovo ThinkCentre M900 Small

If you are looking for a more modern desktop, then you should go with the Alienware Aurora R13 which was released in 2021. The Lenovo ThinkCentre M900 Small is older and entered production in 2015.

If you are looking for the smaller form factor the Lenovo ThinkCentre M900 Small 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 Lenovo ThinkCentre M900 Small 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 Lenovo ThinkCentre M900 Small is slower by supporting RAM speeds of up to 2133 MT/s. Additionally, if you will be needing a lot of RAM, better go for the Alienware Aurora R13 as it has the ability to run 128 GB of RAM. The Lenovo ThinkCentre M900 Small can do a bit less at max 64 GB. Most of the times, this should be sufficient for the majority of users.

Ports

In total the Alienware Aurora R13 has 12 USB ports. The Lenovo ThinkCentre M900 Small is inferior in this regard and packs 8 USB ports. In any case, if you miss USB ports, you can always purchase a USB hub. What is nice about the Alienware Aurora R13, is that it has 2 USB 3.1 port(s) which allows transfer of up to 10Gb/s. Unfortunately, the Lenovo ThinkCentre M900 Small 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 Lenovo ThinkCentre M900 Small 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.

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 3 SATA slot(s). Keep in mind that having too few SATA slots might limit your options for connecting additional memory drives.

If you want the fastest transfer speeds for your SSD, an M.2 interface is crucial. Thus, if the M.2 SSD slot is a mandatory requirement for you, go with the Alienware Aurora R13. Sadly, the Lenovo ThinkCentre M900 Small has no such slot, and you will be forced to use the SATA interface instead.

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 Lenovo ThinkCentre M900 Small comes with a decent 210 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

Alienware_Aurora_R13_motherboard.jpg motherboard layoutLenovo_ThinkCentre_M900_Small_motherboard.jpg motherboard layout