The Inquirer today reports NVIDIA NV40, NV40 and the G70 can address up to 2GB of memory.
It seems that Nvidia memory controller can handle more than we thought. We reported that R520 memory controller can address 1024MB and thought that was a big deal, but when we asked around, it turns that ATI can support even more than 1GB of graphic memory.More details over here.
Many people may ask why the heck would you want a 1024MB card, at a time when most games require up to 256MB for nice detail. Well you guys are forgetting about one very profitable market - where Nvidia and ATI are selling some professional rendering toys.