Why, yes I can.Take the changes for instance.
The usage of the new shaders stands to make driver perf better, as ATI tunes them more.
Who knows what the clocks will end up being?
So far, it shows good scaling with clocks like the 4870 and 4890 did.
Add the 2 together.
Say a conservative 5% increase by then for drivers, add a conservative 10% for clocks with scaling, thats 15%.
That right there puts it around 60% faster than a 280.
Now, we all know that Fermi wont be 3x as fast, and itll most likely be 2x at best, not x2 but 2x, no sli figures here.
Shaders and clocks will limit going much beyond 2x, best case,
So, thats at best 30%, and Im cutting ATI low, and going best for nVidia.
We know thats not very likely, so well most likely see what we had before with the 4890 vs the 285, and being as late as it is, by that time, it wont be enough, not impressive enough, taking so long.
If we turn all these numbers, itll lose a few games to a 5870 refresh, and that doesnt bode well at all for nvidia, again, because it took so long.
The leap we were waiting for has become a small jump if its this late, and thats my point.
If you look at the original 4870 numbers and the original 4890 numbers, youll see a greater than 10% to 15%, just due to drivers.
And again, theres larger changes with this arch than the 4890 change which wasnt much at all, or even coming from the 3 to the 4 series, which ATI said was a bigger change with the 5 series, but not as large as the 1xxx series to the 2xxx series.
This allows for better ending perf thru driver opts.
So, look for 20% here, with refresh, if clocks are 15% or so. And thats still being conservative,
Also, I did say the 280, not the 285. which of course was nvidias refresh, and had those highwer clocks, which we wont see on the first Fermi card.
Im being very realistic here.
Not a good scenario, but doubling 4xxx to 5xxx didnt show 100%, going 2.13 wont show 106.5% either. And most importantly, the clocks will be nowheres near higher , and will most likely be lower in gains than what we saw with 4 to 5 series