Gtx 580 vs gtx 590

I wondered the same thing about that site. It also shows my 6990 lower than the 580,570,480,470. I think the author may have a crack problem.

That site also ranks value for the money not just card performance. Do not take any stock in this site. It appears to be results submitted by users. There is no way a gtx 570 will outperform a 6990

http://www.videocardbenchmark.net/gpu.php?gpu=Radeon+HD...

Also, if you go to 3dmark11 and search for results you will find that depending on the person who submitted the result given the exact same system you will find that one person may have a really high score and one has a really low score.

No clue why but the GTX 590 is definitely faster than a single GTX 580 in gaming. Perhaps the synthetic benchmark they used only utilizes one of the GTX 590's cores?

http://www.videocardbenchmark.net/gpu_value.html
this site is that you are talking about alrobichaud

GTX580 is faster if the benchmark can only use 1 GPU.
That is because the GTX590 is actually clocked slower than the 580 to meet thermal/power requirement specs.
This is also the reason why 2 GTX580s in SLI will beat a single GTX590.

Also, why don't you just use the GPU bench here on tomshardware?

Yes it is the same site that you linked originally. If you click on the graphic card it will show you the two charts that it used to come up with the result.

i am new in that site and i didnt know that there are bench in that site  thnx anw!

Is that even possible? Anyway, the last thing you want to do is use any bencmark that is generated by results submitted by the masses.

I think it's possible to disable one of the GPU cores on the GTX 590 or HD 6990.