FUD Zilla heard a whisper that NVIDIA's 55nm GT200b GPUs might be available sooner than expected. The site claims this chip might arrive just weeks after the Radeon HD 4870 X2 launch, this means it may be available sometime in late August or early September at best.
Nvidia taped out the 55nm GT200 a few months back and we believe that launching 65nm version first made more financial sense for them as they wanted to probe the market and see if ATI actually has a decent chip to compare.
We don’t have any fixed dates but the GT200 55nm might show up very soon. GT200 with some higher clock and especially higher Shader clock could easily give much more performance compared to a standard 65nm GT200. Let's wait and see.