difference between video cards

[bsxiong]

hi all,

i would like to know what is the difference between a

ATI Radeon 9800 PRO / 128MB

and

ATI Radeon 9800 PRO / 256MB ?? how much difference is this 128 and 256?

[PCguy]

Here are some specs:

Radeon 9800 Pro 256: 380 Chip Clock 700 Memory Clock 256-bit Bus Width 8x1 Pipe
Radeon 9800 Pro: 380 Chip Clock 680 Memory Clock 256-bit Bus Width 8x1 Pipe

Now is there much difference?

Radeon 9800 Pro 256 got a 3DMark score of 5980
Radeon 9800 Pro got a 3DMark score of 5966

Not much difference at all. Every game score I see, they were always neck and neck. The big difference is price.

[bsxiong]

so what does the MB really means? is it like ram where 256mb is better than 128mb? shouldn't the 256 make a lot more difference compare to the 128, since it has twice the "MB"?

[PCguy]

Yes, having twice the RAM should make it better, but in this case it doesn't. It says alot about ATI engineering.