[citation][nom]djpepper[/nom]The Xbox is a horrible benchmark device to compare to, its over 7 years old now. AMDs latest graphics offering, the Radeon 7970 has 3.79 TFLOPS Single Precision compute power. The next console from Microsoft is rumored to have the Radeon HD6670 which has 2.7 TFLOPS compute power. Next gen consoles should have no problem running this engine, especially if they opt for a newer graphics card than the 6000 series.[/citation]
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The Radeon 6970 has about 2.7TFLOPS, the 6670 is nowhere near there. The Radeon 6770 is about half the performance of the 6970, maybe the 6790 is half. The 6670 is much slower than the 6770. Think about that... Without looking it up, I've already found out that it is between a third and a quarter of the 6970s performance. The 6670 doesn't come close to 2.7TFLOPS of single precision performance, it might be somewhere around 1TFLOPS or less. I just looked it up and it is 768GFLOPS single precision, well under even 1TFLOPS.
A next generation console should have a 7850 or 6950 card if they want to go AMD. That way it can handle current PC quality games at 1080p and max settings with high enough frame rates. Anything less than those cards will not be even as good as the upper part of the mid-range PC gaming today and would be outdated tech as soon as it comes out. The 6670 is about as fast as an old 4700 card, as depicted in Tom's graphics hierarchy chart.
Even playing at 720p with top PC quality would need at least the Radeon 6750, preferably the 6770, 6790, or 7750. I understand that since the Radeon 7700 and 7800 cards weren't pictured early enough to be considered for consoles until recently, but even the 6770 or better should have been the target for 720p and the 6870 or 6950 should have been the target for 1080p.
With Southern Islands using so much less power I think it's reasonable to have a 7800 card without using too much power. Of course, then the console would be more expensive... Ehh, you want gaming at least as good as mid-end gaming today then you shouldn't be worried. Prices will go down for graphics sooner or later anyway. We should see 6950ish performance for 6870ish or 6850ish prices after Kepler comes along. However, whether or not we will see reduced prices as it is supposed to happen remains to be seen... Nvidia seems to be trying to get it to happen, but AMD has not done anything that even implies they want to retain their position as the better value for the next gen cards. I'm sure that the consoles may be able to get similar graphics performance to PCs with slightly inferior hardware because of their more optimized software, but lets be reasonable.
Am I wrong to expect the new consoles to perform like they are current hardware, not almost half the age of those that they replace?