ppd Wu's/shaders

[Ricorocks]

Ballpark excluding CPU, am I doing ok, or room to improve. Note Thanks to all Bruce, Foldy, & many others, things are much more stable now, from your guidance.

3 machines one with two gpu's, other two one gpu:

All 3 machines total 'shaders' = 3,712 <GTX's 960, 1060, 1050ti, 750ti>

AVG <no interruptions, stalled gpus etc> 750k ppd & 36 wu, in 24hr time span:

750,000ppd / 3712 = 202 ppd/shader

Does this make sense & is it good, bad, or ugly

Thanks

[Nathan_P]

I've never worked it out based on PPD per shader, the usual metric is PPD/watt or PPD/$. The maths is right though.

As a baseline comparison my 1070 and 1080 are currently producing 1,500,000/4480 = 335 ppd/shader. My 980ti and 750ti are currently offline but would drag that down

All I would say is this, a pair of 1060's or 1070 will produce more points for less watts

[foldy]

Looks good! The shaders of latest nvidia generation pascal are faster than previous one.

[Ricorocks]

Great! As noted, previously I'd have stalled GPU's routinely, sometimes multiple time per day. With your help it's very stable, rare GPU stall. So looking at the newer averages prompted the OP. PPD/watt or PPD/$ would also include the CPU's contribution, therefore better.

When I get my next machine (trade or freebie) I'll retire the 32 bit/750ti machine, & go 1070. I'll insure 'pascal on the new one

Thanks Guys

[Nathan_P]

Not quite PPD/$or PPD watt is calculated one each platform separately, the calcs on GPU and CPU will lead to different results. I haven't run a cpu WU in several months due to the end of the "Bigadv" WU but both will be less than a gpu based on the current projects. Core A7 may change this but not while its stuck at 27 threads or less

[bruce]

Looks good! The shaders of latest nvidia generation pascal are faster than previous one.

When I compare GPUs, I've always multiplied the shader count by the frequency to create a number directly related to GFLOPS. It's still simple and it's a better approximation.