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Old 07-24-08, 05:10 PM   #72
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Join Date: Nov 2005
Location: Toronto-CAN, Hamburg-DE, Prague-CZ
Posts: 1,893
Default Re: Nvidia 260 GTX ot ATI HD 4870

Yes the GDDR5 makes a difference, the memory clock data rate is multiplied by 4 on GDDR5, on GDDR3 it's multiplied by 2.
So even with lower Memory Bus Width the HD 4870 has more Memory Bandwidth than the GTX 260.
On many reviews the card was run on resolution up to 2560x1600 and nobody reported the 512 Mb WRAM was a bottleneck.
Read more at AnandTech

PS My choice is still HD 4870
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