Summary: Review of XFX GeForce 6600 256 MB (PV-T43P-UDS7 model), which comes factory-overclocked (450 MHz core and 800 MHz memory).
Here is a snippet: "Nowadays GeForce 6600 chip is located on the top of all entry-level nVidia GPUs (or at the bottom of all mid-range graphics chips, depending on how you look the market). We reviewed an overclocked model from XFX, called PV-T43P-UDS7, which comes with 256 MB GDDR2. Let’s see how it performs against “normal” GeForce 6600 models and also against other video cards available at the market."
Link:
http://www.hardwaresecrets.com/article/287