Quote Originally Posted by zanzabar View Post
on the gddr, the specs say 256bit buss, 1200mhz and 76.8GB/s. that means that with [(core speed)*(buss width)*(data rate)/8]= total GB/s

so that will give u with some math skills, 38.4GB/s*(data rate)= 76.8GB/s, that clearly leaves a data rate of 2 making it something that operates in ddr and dose 1200mhz so that is gddr3 as if it was gddr2 that would be slower and gddr5 is qdr.
GTX480 spec:Memory Clock (MHz) 1848
http://www.nvidia.com/object/product...tx_480_us.html

So GTX480m mem clock=1200MhzX2