In terms of overall gaming performance, the graphical capabilities of the AMD FireGL Z1 are significantly better than the Nvidia GeForce 4 MX 440.

The FireGL Z1 was released less than a year after the 4 MX, and so they are likely to have similar driver support for optimizing performance 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 FireGL Z1 and the GeForce 4 MX 440 have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The FireGL Z1 has 6.7 GB/sec greater memory bandwidth than the 4 MX, which means that the memory performance of the FireGL Z1 is marginally better than the 4 MX.

The FireGL Z1 has 4 Shader Processing Units and the GeForce 4 MX 440 has 2. The two GPUs are based on different architectures, but deliver an equivalent shader performance. To compare, we must continue to look at the memory bandwidth, Texture and Pixel Rates. In this case, we sadly do not have enough data in this area to complete the comparison.

We would recommend a PSU with at least 300 Watts for the FireGL Z1.