> Where are you getting this info from? IMO the technology of memory in > graphics boards cannot be so different than in commercial motherboards. It > could be a *bit* faster (at the expenses of packing less of it), but I'd say > not as much as 4x faster (100 GB/s vs 25 GB/s of Intel i7 in sequential > access), as you are suggesting. Maybe this is GPU cache bandwidth?
This is publicly documented. You can start off by looking at the wikipedia stuff. For reference, gtx280-->141GBps-->has 1GB ati4870-->115GBps-->has 1GB ati5870-->153GBps (launches sept 22, 2009)-->2GB models will be there too Next gen nv gpu's will *assuredly* have bandwidth in excess of 200 GBps. This is *off chip memory bandwidth* from graphics memory (aka video ram). GPU have (very small) caches but they don't reduce memory latency. > > -- > > Francesc Alted > > _______________________________________________ > NumPy-Discussion mailing list > NumPy-Discussion@scipy.org > http://mail.scipy.org/mailman/listinfo/numpy-discussion > > -- Rohit Garg http://rpg-314.blogspot.com/ Senior Undergraduate Department of Physics Indian Institute of Technology Bombay _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion