Since we have two video cards here, we can overclock each one individually. We found that these video cards are great for overclocking. We were able to take the first one to 490MHz GPU frequency and 1.2GHz memory frequency. Better yet, we were able to take the second card even higher as it went up to 495MHz for the GPU frequency, which is a 70MHz overclock! The memory also ran faster at 1.22GHz. This means that we were able to take the BFGTech GeForce 7800 GT OC up to the memory bandwidth of a GeForce 7800 GTX and we came much closer to the pixel fillrate of the 7800 GTX with these GPU overclocks.