Expreview writes NVIDIA's upcoming GeForce GTX 460 will be available in 768MB and 1GB GDDR5 variants for about $199 and $229, respectively.
And now what we are sure about is GeForce GTX 460 has only two editions, one is 768MB and the other is 1GB, which the latter one features 1GB of GDDR5 memory as well as 256-bit memory interface.
Both of them manufactured on 40nm technology, 768MB version with a TDP of 150W while 1GB with a TDP of 160W. And the last confirmed price respectively for $199 and $229.
NVIDIA claimed that GeForce GTX 460 will official release in July12, while GeForce GTS 455/450 in August.
Bright Side of News found some European prices at e-stores, which indicate the 768MB card from ASUS will cost about 179EUR to 189EUR. The site also claims it has an explanation for why there's such a difference between the 768MB and 1GB version:
According to our sources, the 1GB variant will come will GF100 chip which is completely cut down to the level of GF104, meaning 336 cores but with 256-bit memory interface, rather than the 192-bit one inside the GF104. There will be a price difference between the two, but more importantly - difference in availability as well. While GTX 460 768MB will be available for months to come, expect GTX 460 1024MB available only until nVidia clears the inventory of GF100 chips that weren't stable enough to work in 448 or 480 core configuration.