In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 8850M v2 are significantly better than the Nvidia GeForce 920M 2GB.

The GeForce 920M 2GB has a 50 MHz higher core clock speed than the HD 8850M, but the HD 8850M has 8 more Texture Mapping Units than the GeForce 920M 2GB. As a result, the HD 8850M exhibits a 2.6 GTexel/s better Texture Fill Rate than the GeForce 920M 2GB. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GeForce 920M 2GB has a 50 MHz higher core clock speed than the HD 8850M, but the HD 8850M has 8 more Render Output Units than the GeForce 920M 2GB. As a result, the HD 8850M exhibits a 3.8 GPixel/s better Pixel Fill Rate than the GeForce 920M 2GB. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The GeForce 920M 2GB was released over a year more recently than the HD 8850M, and so the GeForce 920M 2GB is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the HD 8850M.

The GeForce 920M 2GB and the Radeon HD 8850M v2 have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The HD 8850M has 57.6 GB/sec greater memory bandwidth than the GeForce 920M 2GB, which means that the memory performance of the HD 8850M is much better than the GeForce 920M 2GB.

The GeForce 920M 2GB has 384 Shader Processing Units and the Radeon HD 8850M v2 has 640. However, the actual shader performance of the GeForce 920M 2GB is 366 and the actual shader performance of the HD 8850M is 464. The HD 8850M having 98 better shader performance and an altogether better performance when taking into account other relevant data means that the HD 8850M delivers a significantly smoother and more efficient experience when processing graphical data than the GeForce 920M 2GB.

The GeForce 920M 2GB requires 25 Watts to run and the Radeon HD 8850M v2 requires 45 Watts. The HD 8850M requires 20 Watts more than the GeForce 920M 2GB to run. The difference is not significant enough for the HD 8850M to have a noticeably larger impact on your yearly electricity bills than the GeForce 920M 2GB.