In terms of overall gaming performance, the graphical capabilities of the AMD Radeon RX 5500M 4GB are massively better than the Nvidia GeForce 940MX 2GB.

The RX 5500M has a 253 MHz higher core clock speed and 64 more Texture Mapping Units than the GeForce 940MX 2GB. This results in the RX 5500M providing 94.1 GTexel/s better texturing performance. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The RX 5500M has a 253 MHz higher core clock speed and 24 more Render Output Units than the GeForce 940MX 2GB. This results in the RX 5500M providing 35 GPixel/s better pixeling performance. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The RX 5500M was released over three years more recently than the GeForce 940MX 2GB, and so the RX 5500M is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the GeForce 940MX 2GB when running the latest games.

The RX 5500M has 2048 MB more video memory than the GeForce 940MX 2GB, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the RX 5500M also has superior memory performance overall.

The GeForce 940MX 2GB has 16 GB/sec greater memory bandwidth than the RX 5500M, which means that the memory performance of the GeForce 940MX 2GB is slightly better than the RX 5500M.

The Radeon RX 5500M 4GB has 1408 Shader Processing Units and the GeForce 940MX 2GB has 384. However, the actual shader performance of the RX 5500M is 1506 and the actual shader performance of the GeForce 940MX 2GB is 644. The RX 5500M having 862 better shader performance and an altogether better performance when taking into account other relevant data means that the RX 5500M delivers a massively smoother and more efficient experience when processing graphical data than the GeForce 940MX 2GB.

The RX 5500M transistor size technology is 21 nm (nanometers) smaller than the GeForce 940MX 2GB. This means that the RX 5500M is expected to run slightly cooler and achieve higher clock frequencies than the GeForce 940MX 2GB.

The Radeon RX 5500M 4GB requires 85 Watts to run and the GeForce 940MX 2GB requires 25 Watts. We would recommend a PSU with at least 450 Watts for the RX 5500M. The RX 5500M requires 60 Watts more than the GeForce 940MX 2GB to run. The difference is significant enough that the RX 5500M may have an adverse affect on your yearly electricity bills in comparison to the GeForce 940MX 2GB.