In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GT 630M are significantly better than the Nvidia GeForce GT 330M.

The GeForce GT 630M has a 85 MHz higher core clock speed and the same number of Texture Mapping Units as the GeForce GT 330M. This results in the GeForce GT 630M providing 1.4 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 GT 630M has a 85 MHz higher core clock speed than the GeForce GT 330M, but the GeForce GT 330M has 4 more Render Output Units than the GeForce GT 630M. As a result, the GeForce GT 330M exhibits a 2 GPixel/s better Pixel Fill Rate than the GeForce GT 630M. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The GeForce GT 630M was released over a year more recently than the GeForce GT 330M, and so the GeForce GT 630M is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GeForce GT 330M.

The GeForce GT 630M and the GeForce GT 330M have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The GeForce GT 330M has 5.3 GB/sec greater memory bandwidth than the GeForce GT 630M, which means that the memory performance of the GeForce GT 330M is marginally better than the GeForce GT 630M.

The GeForce GT 630M has 96 Shader Processing Units and the GeForce GT 330M has 48. However, the actual shader performance of the GeForce GT 630M is 127 and the actual shader performance of the GeForce GT 330M is 63. The GeForce GT 630M having 64 better shader performance is not particularly notable, as altogether the GeForce GT 330M performs better when taking into account other relevant data.

The GeForce GT 630M requires 33 Watts to run and the GeForce GT 330M requires 23 Watts. The GeForce GT 630M requires 10 Watts more than the GeForce GT 330M to run. The difference is not significant enough for the GeForce GT 630M to have a noticeably larger impact on your yearly electricity bills than the GeForce GT 330M.