supposedly, the 485 is to be realeased this fall. it gets:
20 MHz bump to core clock
39 MHz bump to shader clock
32 more stream processors
4 more TMU
overall, this gives it a 4.08 MT/s advantage in texture fill rate, and a .96 MP/s advantage in pixel fill rate, for an overall 130 gigaflops advantage over the 480. the 485 is supposed to use 2 8 pin connectors, so its looking to be even more power hungry, 10-20% more. also even hotter. it is rumored to be released at 20$ more than the 480s. supplies should be short, considering the 485s are just the "good" 480s that didnt crash with 512 stream processors, so there arent many of them. all of this seems very reliable, and confirmed by nvidia:
http://www.techpowerup.com/125011/New_NVIDIA_GF100_Board_Surfaces_Suggests_New_High-End_SKU.html
http://translate.google.com/translate?hl=en&sl=auto&tl=en&u=http%3A%2F%2Fcttl.cz%2Findex.php%3Fgid%3D11049
20 MHz bump to core clock
39 MHz bump to shader clock
32 more stream processors
4 more TMU
overall, this gives it a 4.08 MT/s advantage in texture fill rate, and a .96 MP/s advantage in pixel fill rate, for an overall 130 gigaflops advantage over the 480. the 485 is supposed to use 2 8 pin connectors, so its looking to be even more power hungry, 10-20% more. also even hotter. it is rumored to be released at 20$ more than the 480s. supplies should be short, considering the 485s are just the "good" 480s that didnt crash with 512 stream processors, so there arent many of them. all of this seems very reliable, and confirmed by nvidia:
http://www.techpowerup.com/125011/New_NVIDIA_GF100_Board_Surfaces_Suggests_New_High-End_SKU.html
http://translate.google.com/translate?hl=en&sl=auto&tl=en&u=http%3A%2F%2Fcttl.cz%2Findex.php%3Fgid%3D11049