- Joined
- Oct 6, 2014
- Messages
- 1,424 (0.38/day)
System Name | octo1 |
---|---|
Processor | dual Xeon 2687W ES |
Motherboard | Supermicro |
Cooling | dual Noctua NH-D14 |
Memory | generic ECC reg |
Video Card(s) | 2 HD7950 |
Storage | generic |
Case | Rosewill Thor |
It's still early but it looks like the new rig will top out at around 26k ppd. It might get a tad higher but it's doubtful that it will hit 30k on a regular basis. As prices come down, I might look into getting a pair of 18 core chips but these are still very expensive.
I made up a chart to estimate ppd based on points per ghz per core and the estimate I came up with for the 2.3ghz 14c was just under 27k ppd. So it looks like my estimate was pretty much on target. I took the average ppd for the dual octo core rig with v1 chips and divided by cores x ghz to get a base figure of 645 point per core per ghz.
I used that as the multiplier for other chips (taking cores x ghz) to get a total output figure. Then I multiplied that by 1.3 to reflect the roughly 30% increase in efficiency with the v3 chips.
According to those calculations, 2 18c chips at 2ghz should produce about 30k ppd total. 2 at 2.3ghz should produce about 34.5k ppd.
I made up a chart to estimate ppd based on points per ghz per core and the estimate I came up with for the 2.3ghz 14c was just under 27k ppd. So it looks like my estimate was pretty much on target. I took the average ppd for the dual octo core rig with v1 chips and divided by cores x ghz to get a base figure of 645 point per core per ghz.
I used that as the multiplier for other chips (taking cores x ghz) to get a total output figure. Then I multiplied that by 1.3 to reflect the roughly 30% increase in efficiency with the v3 chips.
According to those calculations, 2 18c chips at 2ghz should produce about 30k ppd total. 2 at 2.3ghz should produce about 34.5k ppd.