In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce 940MX 2GB are massively better than the AMD Radeon HD 7430M.

The GeForce 940MX 2GB has a 522 MHz higher core clock speed and 16 more Texture Mapping Units than the Radeon HD 7430M. This results in the GeForce 940MX 2GB providing 22.1 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 GeForce 940MX 2GB has a 522 MHz higher core clock speed and 4 more Render Output Units than the Radeon HD 7430M. This results in the GeForce 940MX 2GB providing 6.6 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 GeForce 940MX 2GB was released over three years more recently than the Radeon HD 7430M, and so the GeForce 940MX 2GB is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the Radeon HD 7430M when running the latest games.

The GeForce 940MX 2GB has 1024 MB more video memory than the Radeon HD 7430M, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the GeForce 940MX 2GB also has superior memory performance overall.

The GeForce 940MX 2GB has 1.6 GB/sec greater memory bandwidth than the Radeon HD 7430M, which means that the memory performance of the GeForce 940MX 2GB is marginally better than the Radeon HD 7430M.

The GeForce 940MX 2GB has 384 Shader Processing Units and the Radeon HD 7430M has 160. However, the actual shader performance of the GeForce 940MX 2GB is 644 and the actual shader performance of the Radeon HD 7430M is 48. The GeForce 940MX 2GB having 596 better shader performance and an altogether better performance when taking into account other relevant data means that the GeForce 940MX 2GB delivers a noticeably smoother and more efficient experience when processing graphical data than the Radeon HD 7430M.

The GeForce 940MX 2GB transistor size technology is 12 nm (nanometers) smaller than the Radeon HD 7430M. This means that the GeForce 940MX 2GB is expected to run slightly cooler and achieve higher clock frequencies than the Radeon HD 7430M.

The GeForce 940MX 2GB requires 25 Watts to run and the Radeon HD 7430M requires 7 Watts. The GeForce 940MX 2GB requires 18 Watts more than the Radeon HD 7430M to run. The difference is not significant enough for the GeForce 940MX 2GB to have a noticeably larger impact on your yearly electricity bills than the Radeon HD 7430M.