In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce 7050 are significantly better than the AMD Rage 128 Ultra 16MB.

The GeForce 7050 was released over three years more recently than the 128 Ultra, and so the GeForce 7050 is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the 128 Ultra when running the latest games.

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 GeForce 7050 has 112 MB more video memory than the 128 Ultra, so is likely to be slightly better at displaying game textures at higher resolutions. This is supported by the fact that the GeForce 7050 also has superior memory performance overall.

The GeForce 7050 has 4.3 GB/sec greater memory bandwidth than the 128 Ultra, which means that the memory performance of the GeForce 7050 is marginally better than the 128 Ultra.

The GeForce 7050 has 2 Shader Processing Units but the 128 Ultra does not have an entry, so the two GPUs cannot be reliably compared in this area.