In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce 920M 2GB are significantly better than the Nvidia GeForce GT 630M v3.

The GT 630M has a 97 MHz higher core clock speed than the GeForce 920M 2GB, but the GeForce 920M 2GB has 16 more Texture Mapping Units than the GT 630M. As a result, the GeForce 920M 2GB exhibits a 7.6 GTexel/s better Texture Fill Rate than the GT 630M. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GT 630M has a 97 MHz higher core clock speed than the GeForce 920M 2GB, but the GeForce 920M 2GB has 4 more Render Output Units than the GT 630M. As a result, the GeForce 920M 2GB exhibits a 1.9 GPixel/s better Pixel Fill Rate than the GT 630M. 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 GT 630M, 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 GT 630M.

The GeForce 920M 2GB and the GeForce GT 630M v3 have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The GT 630M has 14.4 GB/sec greater memory bandwidth than the GeForce 920M 2GB, which means that the memory performance of the GT 630M is slightly better than the GeForce 920M 2GB.

The GeForce 920M 2GB has 384 Shader Processing Units and the GeForce GT 630M v3 has 96. However, the actual shader performance of the GeForce 920M 2GB is 366 and the actual shader performance of the GT 630M is 129. The GeForce 920M 2GB having 237 better shader performance and an altogether better performance when taking into account other relevant data means that the GeForce 920M 2GB delivers a marginally smoother and more efficient experience when processing graphical data than the GT 630M.

The GeForce 920M 2GB transistor size technology is 12 nm (nanometers) smaller than the GT 630M. This means that the GeForce 920M 2GB is expected to run slightly cooler and achieve higher clock frequencies than the GT 630M.

The GeForce 920M 2GB requires 25 Watts to run and the GeForce GT 630M v3 requires 35 Watts. The GT 630M requires 10 Watts more than the GeForce 920M 2GB to run. The difference is not significant enough for the GT 630M to have a noticeably larger impact on your yearly electricity bills than the GeForce 920M 2GB.