In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce 7100 GS Inno3D 128MB Edition are noticeably better than the Intel 865G.

The 7100 GS was released over a year more recently than the 865G, and so the 7100 GS is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the 865G.

Both GPUs exhibit very poor performance, so rather than upgrading from one to the other you should consider looking at more powerful GPUs. Neither of these will be able to run the latest games in any playable way.

The 7100 GS has 112 MB more video memory than the 865G, so is likely to be slightly better at displaying game textures at higher resolutions. This is supported by the fact that the 7100 GS also has superior memory performance overall.

The 7100 GS has 2.8 GB/sec greater memory bandwidth than the 865G, which means that the memory performance of the 7100 GS is marginally better than the 865G.

The 7100 GS has 4 Shader Processing Units but the 865G does not have an entry, so the two GPUs cannot be reliably compared in this area.

The 865G requires 13 Watts to run but there is no entry for the 7100 GS.