OCCT 3.1.0 shows HD4870/4890 design flaw - they can't handle the new GPU test !

[largon]

For comparison:
During OCCT GPU test GPU-Z reports an average vDDC current draw of 82.72A.
During normal gameplay in Crysis GPU-Z reports an average current draw of 42.18A.

OCCT GPU test causes 96% higher current draw than Crysis.
2×

Isn't the 4890 4 phase by default?

Afaik the asus cards (top) have 5 pahses + 2 for memory. ( 4890)

edit: seems like all 4890 have 5 phases + 2 memory (at least the one i have checked: xfx, asus, powercolor, HIS, Club3d)

which brings up another point, why is the 4890 affected by this, it even has a stronger vrm circut then the 4vrm 4870.

HD4890 has 3 core vDD(C) phases just like reference HD4870. In addition, HD4890 also has 2 phases that are yet to be officially identified which are listed as "???" in GPU-Z sensors tab. This unknown phase could be dealing with the GDDR memory controller perhaps, as it's current depends on GDDR frequency yet the voltage these phases generate are not fed into the GDDR5 chips...
And ofcourse, there's 1+1 (mvDD+mvDDQ) memory phases too.

http://mangafranceworld.free.fr/Divers/DSC00551.JPG

Vtec just failed yo!

Oh this is classic, Especially what the n00b AMD mod said.

It's "Vitec" not "Vtec" and that's just an inductor.
A passive component. It's a coil of copper wire. It cannot fail in any to contribute to this issue.

For reference, 260GTX (216) 55nm easily passes 30 minutes Temps only 70C, 1680x1050, FPS ~43 (i7 @ 3.9ghz). Give me more juice

Hehe, my HD4890 @ 850/850 (with underclocked memory and a 720BE @ 3.2GHz.) floats between 80-86FPS depending on the angle of the object.