I'm not sure if posting this kind of news is a violation of the ToS (fellow mods, feel free to close/delete this as needed), but it's still interesting nonetheless:
Yes, you've read that correctly - using ElcomSoft's Wireless Security Editor, the company claims ATI Radeon HD 5970, a dual-GPU consumer card broke 100,000 passwords per second. In comparison, Tesla S1070 with four Tesla C1070 boards achieves 52,400 passwords. For comparison Intel Core i7 920, a 2.66 GHz CPU with eight threads can calculate 4000 passwords per second, or 25 times slower than a dual-GPU beast from AMD. Intel's sexa-core beast, Core i7 980X at 3.33 GHz cannot pass 6000 passwords per second - even with hard-encoded AES-NI encryption instructions [AES-NI is a feature of 32nm Westmere architecture].
Another news item that squarely falls in ATI's favor—comparisons to CUDA apparently showed better performance on the part of NVIDIA's competitor.