Asuka talked about GTX470 again,but no benchmark numbers because of NDA.
http://we.pcinlife.com/thread-1369198-1-1.html
GTX470 is slower than HD5870 in DiRT2 and STALKER COP
1920X1200 GTX470 is 10% slower than HD5870 1GB
2560X1600 GTX470 is as fast as HD5870 1GB
GTX470 TDP is much lower than 300W,but significantly hotter than HD5870