In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce 320M are very slightly better than the AMD Radeon HD 7430M.

The Radeon HD 7430M has a 150 MHz higher core clock speed than the GeForce 320M, but the GeForce 320M has 8 more Texture Mapping Units than the Radeon HD 7430M. As a result, the GeForce 320M exhibits a 2.4 GTexel/s better Texture Fill Rate than the Radeon HD 7430M. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The Radeon HD 7430M has a 150 MHz higher core clock speed than the GeForce 320M, but the GeForce 320M has 4 more Render Output Units than the Radeon HD 7430M. As a result, the GeForce 320M exhibits a 1.2 GPixel/s better Pixel Fill Rate than the Radeon HD 7430M. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The Radeon HD 7430M was released over a year more recently than the GeForce 320M, and so the Radeon HD 7430M is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GeForce 320M.

The Radeon HD 7430M has 1024 MB video memory, but the GeForce 320M does not have an entry, so the two GPUs cannot be reliably compared in this area.

The Radeon HD 7430M has 160 Shader Processing Units and the GeForce 320M has 48. However, the actual shader performance of the Radeon HD 7430M is 48 and the actual shader performance of the GeForce 320M is 45. The Radeon HD 7430M having 3 better shader performance is not particularly notable, as altogether the GeForce 320M performs better when taking into account other relevant data.

The Radeon HD 7430M requires 7 Watts to run and the GeForce 320M requires 23 Watts. The GeForce 320M requires 16 Watts more than the Radeon HD 7430M to run. The difference is not significant enough for the GeForce 320M to have a noticeably larger impact on your yearly electricity bills than the Radeon HD 7430M.