I've joined folding@home few weeks ago and it's run just fine. Yesterday I've decided to compare my system with other gentlemen's hardware to ensure I've made proper setup and my hardware runs at optimal level. I've discovered that most commonly used metric (and the only metric I've found database for) is Parrots Per Day. The itself database is published here:
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But the results I've got was quite discouraging. According the database my average performance should be 146,814 PPD (Radeon HD 7970) per unit. I have two 7970 watercooled to 60°C, running 24x7 at stock frequencies and monitoring tool indicates constant 97-99% load. My results is about 23-24k PPD per unint (about 49k in total). This is more than 6 times slower than average performance reported by other users with same hardware. How could such thing be? Is PPD reliable enough to compare computing performance in F@H, or some other metrics should be used?
I'm not looking towards Parrots them self, but 6-times difference make me think that I've did something extremely wrong.