i7 920 vs i7 860 direct test comparison

[123bob]

OK, since this was bugging me, I cut a bit into my normal Friday "bar-time"....

I took the same 105 WU data sets I had posted previously, added up the total runtime, the total claimed, and the total granted. I then did the math. Note that the WUs report in Boinc points, so I did the final conversion (x7) to WCG points at the end of the strings.

These are all HFCC WUs.

920 rig

Average WU Time 3.779 CPU hours

Claimed points per CPU hour 28.008

Granted points per CPU hour 23.927

Claimed PPD ideal day
BOINC 5,377.471
WCG 37,642.296

Granted PPD ideal day
BOINC 4,594.027
WCG 32,158.186




860 rig


Average WU time 3.854 CPU hours

Claimed points per CPU hour 26.608

Granted points per CPU hour 22.504


Claimed PPD ideal day
BOINC 5,108.75
WCG 35,761.281

Granted PPD ideal day
BOINC 4,320.807
WCG 30,245.647

This WU analysis says that the 920 is 6.3% better when looked at this way.

I'm still going to give more thought to this. The numbers reported in the raw PPD above are actual production. Isn't that what the machine really did?

In any case, a few more days of data are probably needed.

Regards,
Bob