Dell Pro Slim Plus QBS1250 vs. Dell XPS 8910
Comparison and Differences
Differences between Dell Pro Slim Plus QBS1250 and Dell XPS 8910
If you are looking for a more modern desktop, then you should go with the Dell Pro Slim Plus QBS1250 which was released in 2025. The Dell XPS 8910 is older and entered production in 2016.
If you are looking for the smaller form factor the Dell Pro Slim Plus QBS1250 is the right one for you. It is smaller than the Dell XPS 8910 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 Pro Slim Plus QBS1250 as it is running a newer generation CPU. This is not to say that Dell XPS 8910 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 Dell Pro Slim Plus QBS1250 is using the faster 5600 MT/s RAM. The Dell XPS 8910 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 Dell Pro Slim Plus QBS1250 as it has the ability to run 128 GB of RAM. The Dell XPS 8910 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 Dell XPS 8910 has 11 USB ports. The Dell Pro Slim Plus QBS1250 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. Both of the models have USB 3.1 ports which will allow you to exchange data with your peripherals at up to 10Gb/s. This is especially crucial if you are using external drives on a regular basis.
DisplayPort is crucial for any desktop machine. It is good to see that both models are featuring DisplayPorts. However, the Dell Pro Slim Plus QBS1250 comes with 3 ports, while the Dell XPS 8910 has only 1. If you are planning to use multiple monitors, the Dell Pro Slim Plus QBS1250 is the better choice.
The Dell XPS 8910 comes with an HDMI port, while the Dell Pro Slim Plus QBS1250 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 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 Dell XPS 8910 is better equipped as it comes with 4 SATA slot(s), while the Dell Pro Slim Plus QBS1250 has 2 slot(s).
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 Dell Pro Slim Plus QBS1250. Sadly, the Dell XPS 8910 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 Dell Pro Slim Plus QBS1250 comes with a decent 360 Watt PSU, but the Dell XPS 8910 has a more powerful one rated at 460 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
