I think we can do some more tweaking to get more WUs in one day. Unlike other projects, knocking off seconds is a huge percentage of overall time.

For example, I saw no noticeable decrease in time increasing core clocks of my 7850 from 900mhz to 950mhz. This most likely has to deal with the fact my GPU usage is pegged at a max of 87%. Inefficiencies in coding or maybe shader use?

However, changing the percentage of CPU usage in boinc to 87% (freeing one thread) decreased my time between 7 and 18 seconds. Yes, you lose one thread for other CPU projects, but you increase the amount of WUs being done by the GPU.

Previous time per WU 2:06, with 87% cpu usage being used it dropped it by an average 10 seconds. A drop in 10 seconds produces and extra 59 WUs. One thread of missing CPU HCC is only about 24WUs on a 4.5ghz 2600k. Losing a CPU thread provides an overall increase in WU completion .

Of course, I only watched this for like 10 minutes. With some daily stats and more tweaking we could maybe drop the overall time of GPU WUs with the right settings.