how to work out your graphics cards bandwidth

[scotty777]

Ok, so here's a lil formula I can up with to work out memory bandwidth:

(bitrate x memory frequency)/4 {this is for ddr3 memory}

eg: ATI HD4850 ---> (256bit x 1000mhz)/4 =64 000 bits =64 GB/s

for ddr5:

ATI HD4870 -----> (256bit x 900 mhz) / 2 = 115 200 = 115.2 GB/s


now this is of coarse a rough way to work out the memory bandwidth, but i made the formula for 2 reasons,
1st for overclockers who want to see what their bandwidth is

2nd for people who want a quick way to see their bandwidth when GPU-Z aint working to well.


this formula works with all bit rates so far

 

[kronoSX]

thanks.

 

[scotty777]

ok... seems like i opened this thread for no reason...

 

[Juggy]

Thought it was an info thread not a discussion thread.

 

[scotty777]

Thought it was an info thread not a discussion thread.

would be nice if people acknowledged it, but, alas,