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4870 2d clock @ 500mhz

Soldato
Joined
8 Nov 2006
Posts
21,398
Location
London
Yep. I just did it today. Down to 1.083v at 160/500 clocks. Default is 1.263v at 500/900 clocks.

Only reason I did this was because on my old HD 4850 after release, some manufacturers starting releasing bioses with much lower 2d clocks. Thought the same might work on the HD 4870, and hey presto it did.

A detailed post on power savings from underclocking a hd 4870: http://forums.techpowerup.com/showpost.php?p=921589&postcount=3

39w in idle power usage reduction. Most of it from reducing the idle memory clock.
 
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Soldato
Joined
9 May 2005
Posts
4,524
Location
Nottingham
Am I correct in thinking that if you are using Aero in Vista/Seven that the card would be running in 3DLP mode rather than 2D?
 
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