Originally Posted by Jagged_Steel
I do not know where you got that power consumption information about the 6790, but I can assure you that it is false. 6790 draws about 85 watts when gaming, and 15 watts at idle. Perhaps you mistook the power consumption of the 6970 for that of the 6790??
Two 6790s in Crossfire outperform both a single 6970 and a single GTX 580, the pair of 6790's using ~15 watts more than a 6970, and ~20 watts less than a 580. Performance per watt is obviously very good for the 6790. Not sure where you heard the bad performance per watt about the 6790, but it is completely wrong.
Again: I paid less than $200 for two 6790,s and they perform on par with a $500 GTX 580 and use less power. If there is a better bang for the buck in GPUs available today, I have not seen it.
Sorry Sir, But the List of GPUs you have uploaded shows the average power rating which is only needed to demonstrate power rating of GPUs in Marketing sections, that values are nothing to do with real world gaming.
I mean they calculated and created this list by this formula
Average Power consumption = ( Idle wattage + Max TDP ) / 2
This rating doesn't apply when you play games.
Here is proof from Wikipedia:
Average Power Consumption of 6790 = ( 19w + 150w) / 2 = 84.5watt which meets the value of list you've uploaded. THIS VALUE IS TOTALLY BULL**** TO MEASURE GPU POWER CONSUMPTION WHILE GAMING, say playing Crysis, And it has been proved that sometimes many GPU pulls more wattage than Max TDP. Like GTX 480 does. THAT is WHY I TOLD >150WATT for 6790
Also your post shows Radeon HD 5970 (Dual 5850) pulls only 178watts
, This is absolutely wrong. If 5970 were made to take only 178watts then GPU Vendor I mean AMD would not have recommended this
Next time please try to have more attention with the topic before you are going to talk about it.Edited by sumitlian - 4/2/12 at 5:11pm