Premiere Pro CS5.5 mercury playback engine will be supported on GTX 680

Question

Could someone please confirm if Premiere Pro CS5.5 mercury playback engine will be supported on GTX 680.
thanks

Answer 1

Jim,
Your comment was based upon results from the 560 Ti 448 card and that is € 240 or more. The 680 is € 440. That is 45% difference: € 440 - (0.45x440) = € 440 - € 198 = € 242
Your comparison is based on a € 200 GTX 560 model, which only achieves a score of around 120 seconds, which is 55% less expensive (€ 440 - (0.55x440) = € 440 - € 242 = € 198) and more than 225% slower (120 / 53 = 2.26)
So for 55% less expenditure, you lose more than 225% performance. That is very disappointing and would rank in the 'penny-wise-pound-foolish' savings. (But that is how your system can be ranked, at least in the past). There is another major flaw in your reasoning, you are only considering number of CUDA cores, nothing else. You are disregarding all the other aspects of the new architecture and that makes your argument very weak and flawed. You have to consider the number of cores AND the memory bus in combination. Something you obviously overlooked, but although the number of cores tripled in comparison to the 580, the memory bus was reduced to 256 bits width, a 50% reduction. That means that at best the expected performance gain could be 0.5 (memory bus) x 3 (number of cores) = 1.5 and not your 300%.
To summarize:
Now if you want to go the other way, with the 680 as the baseline, you'd say that for 60% less money, you still get 80% of the performance.
For 55% less money, you get 44% of the performance on this test.