Summer might be coming to an end in the coming weeks, but the GPU price wars between AMD and Nvidia are just starting to heat up. To wit, AMD rolled out a series of price reductions in July for its Radeon HD 7970, 7950, and 7870 graphics cards, and now that Nvidia has made Kepler affordable with its GeForce GTX 660 Ti part, AMD is once again responding in kind with another round of cuts.
On top of those $50 price cuts, AMD shaved another $20 off certain models. A quick glance online shows the Radeon HD 7970 going for $410 street and the Radeon HD 7950 for $320 street (the Radeon HD 7970 is unaffected by the latest round of cuts).
Nvidia's GeForce GTX 660 Ti, which competes with AMD's Radeon 7950 GPU, sells for about $300 street (and up, depending on model). You can see how it fares in our recent roundup of three GTX 660 Ti cards.