He said it was hot and power hungry and performs bad, 10-20%.Not all correct. In fact, its not hot at all, runs very cool and if anything its the most power efficient GPU outside of iGPU, period. Power hungry? I would say overall, Apop's sources are in fact incorrect..
He was 100% correct regarding the performance estimate. He never said it would only be 10-20% faster, he specifically said 25-30% faster over GTX580 (overall). In fact, that's true as Anandtech, Hardware Canucks, Computerbase and others have shown, this card is 25-30% faster on average than a GTX580, and that's including DirectX11 games too.
Again, 50% faster than 6970 and ~30% faster than gtx580 is not terrible considering every other factor.
You keep saying this but no single review is showing this. It's about 33-41% faster than HD6970, depending on the source. But yet, you continue to magically round this up to 50%....
I just did a calculation of all the games at 1920x1200 from Anandtech, and HD7970 is only
37% faster over HD6970 in Anandtech's review (I dropped the unplayable BF3 4x MSAA performance and instead added the FXAA into my average). This is almost exactly the same that Hardware Canucks derived - 38%. I don't recall EVER a new ATI/AMD generation GPU being only 37% faster on average in
newer games over the previous generation. Maybe 7800GTX 256mb over 6800 Ultra was this slow? And compared to a GTX580, "depending on the game being tested it’s anywhere between 5% and 35% faster than NVIDIA’s GeForce GTX 580, averaging 15% to 25% depending on the specific resolution in use."~ AnandTech's own review
The performance was nothing like this
ridiculously exaggerated slide. Also, I read his 3 page preview and I don't recall him mentioning anything about the 10-20% figure. So all in all, apoppin's sources were more or less correct. On the power consumption front, its idle ZeroPower feature is very impressive but it consumes more power at load than HD6970 did, which is a step back for people who care about these things for high-end GPU. You can also make the argument that it isn't cool either since to get it 74-75*C, the fan is running louder than it is on HD6970 (which already isn't a quiet card at all).
The reference in regard to HD7970 being "like Fermi" is NOT to say that it's going to be have similar power consumption like GTX480 did. It means that HD7970 will be a hotter and louder version than the next iteration of HD7970-revision. This is what the comment meant of HD7970 being like Fermi - in another words a stop-gap card for AMD until the "real" HD7970 follows. The comment regarding poor yields was probably unjustified, however. We have no way of knowing if this will be true or not. If HD7970 goes out of stock for weeks, then it's probably fair to assume that yields are poor. For now, I think that statement was premature.
Either way, I think AMD should do an HD4890 style upgrade in 6-8 months and release a 1050-1100mhz version. Then, this card would really start to be more impressive. Based on Arkadrel's links, the card overclocked to 1165 mhz at Legit Reviews. This is amazing.