The folks at VR-Zone have posted a rumor that ATI is currently reworking the already delayed R600 GPU in an effort to minimize PCB size and get a better handle on thermals. Supposedly already at a staggering 12" in length, the original PCB layout is easily one of the longest graphics cards in history. The obvious goal here is to design a PCB which will be at least as "short" as the GeForce 8800 GTX, though there are some considerable design hurdles to overcome to do so. In addition, the team will be utilizing this time to further increase the efficiency and effectiveness of the heatsink assembly to keep the hot new GPU running cool. With the GeForce 8800 GTX already in the retail channel and a smaller and faster 80u variant likely coming in Q1 2007, ATI certainly has a lot at stake with the R600 GPU design.