5 Things to Know About Upgrading the GPU in a Dell XPS 8940

The XPS 8940 has a PCIe x16 slot that accepts a dedicated graphics card, but the stock power supply is usually only 360W or 500W.

A 360W PSU severely limits your GPU choices. Most mid-range and high-end cards require more power and won’t work safely.

You can upgrade the power supply, but Dell uses proprietary connectors and a non-standard size, making it harder to swap in a standard ATX unit.

If you stick with the stock PSU, choose a GPU with a low power draw, like an NVIDIA GTX 1650 or AMD Radeon RX 6400, which typically run under 75W.

Even with a 500W PSU, avoid power-hungry cards like the RTX 3080 or RX 6800 XT, as they can exceed the PSU’s capacity and cause instability or shutdowns.