In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GT 550M 2GB are very slightly better than the AMD Radeon HD 7590M.

The GT 550M has a 140 MHz higher core clock speed than the Radeon HD 7590M, but the Radeon HD 7590M has 8 more Texture Mapping Units than the GT 550M. As a result, the Radeon HD 7590M exhibits a 2.6 GTexel/s better Texture Fill Rate than the GT 550M. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GT 550M has a 140 MHz higher core clock speed than the Radeon HD 7590M, but the Radeon HD 7590M has 4 more Render Output Units than the GT 550M. As a result, the Radeon HD 7590M exhibits a 1.8 GPixel/s better Pixel Fill Rate than the GT 550M. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The Radeon HD 7590M was released over a year more recently than the GT 550M, and so the Radeon HD 7590M is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GT 550M.

The GT 550M has 1024 MB more video memory than the Radeon HD 7590M, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the GT 550M also has superior memory performance overall.

The GT 550M has 3.2 GB/sec greater memory bandwidth than the Radeon HD 7590M, which means that the memory performance of the GT 550M is marginally better than the Radeon HD 7590M.

The Radeon HD 7590M has 480 Shader Processing Units and the GeForce GT 550M 2GB has 96. However, the actual shader performance of the Radeon HD 7590M is 144 and the actual shader performance of the GT 550M is 142. The Radeon HD 7590M having 2 better shader performance is not particularly notable, as altogether the GT 550M performs better when taking into account other relevant data.

The Radeon HD 7590M requires 18 Watts to run and the GeForce GT 550M 2GB requires 35 Watts. The GT 550M requires 17 Watts more than the Radeon HD 7590M to run. The difference is not significant enough for the GT 550M to have a noticeably larger impact on your yearly electricity bills than the Radeon HD 7590M.