techPowerUp! posted a review on the Biostar V7603GS21 GeForce 7600 GS V-Ranger

The Biostar V7603GS21 V-Ranger is based on NVIDIA's GeForce 7600 GS but comes at a higher memory clock. In addition to that Biostar added some changes to the PCB to allow software to change the GPU and memory voltages, which allows much better overclocking of the card. In our testing we could increase the core clock by 63% and the memory clock by 20% which made the card play in a completely different performance league.

Biostar V7603GS21 GeForce 7600 GS V-Ranger Review