GIGABYTE 8800 GTS, mem speed question

[chshwong]

Hi, i read from the Nvidia site that a 8800 GTS should have a Memory Clock Speed of 800 mhz.

How come when searching online, Gigabyte's 8800 GTS' Memory Clock Speed always says 1600 mhz?

Is it a different interpretation or does it come overclocked?

Thank you

 

[Kill Bill]

most likely what you said it's OC2ed. But with the GTS if it's and OC 320mb 8800GTS a normal 640mb 8800GTS Would be the better preformer.

 

[maroon1]

800MHz is the actual speed

1600MHz is the effective speed, because 8800GTS use dual channel memory (GDDR3). The dual channel memory doubles the data per clock thats why you have an effective speed of 1600MHz.

http://en.wikipedia.org/wiki/Dual-channel_architecture


In nvidia website they don't write the effective speed..........

 

[Cheese]

GDDR is a dubble data rate, weather its dual channel or not it speed is 800Mhz and since its dubble data rate its dubbed since it does 2 operations in 1 pass.

 

[hermeslyre]

"on the rise and fall of the clock cycle" yep. Most people still double the speed though. I'm sure it's because the manufactures said it first, They're are so misleading