Thanks guys, for the huge improvement!
I did some experiments with the 2013-12-18 version of cudaminer with my puny system:
Windows 8.1 Pro 32-Bit
GTX 650 Ti (1GB Version)
Nvidia Driver Version 331.65
System power consumption (idle): 93 Watts
cudaminer.exe -H 1 -i 0 -C 2 -l <see table>
CUDAMiner Version 2013-12-18 2013-12-10
CUDAMiner Launch config K16x8 K8x16 K2x24 K4x24 K4x32 K4x32 K8x24 K8x24 K8x16
GPU Core Clock (MHz) 1050 1050 1050 1050 1050 950 1050 1050 1050
GPU Memory Clock (MHz) 1400 1400 1400 1400 1400 1350 1400 1400 1400
Fan Speed (%) 100 100 100 100 100 100 100 100 100
GPU Temp (°C) 68 68 64 68 69 65 68 58 56
Memory used (Mb) 680 680 333 512 660 660 915 940 680
GPU Load (%) 99 99 96 99 99 99 99 99 99
Memory Cont. Load (%) 59 59 57 59 60 57 59 40 46
Power Cons. (Watt) 207 207 200 207 210 200 200-215 170 170
KH/s 151 155 143 151 156 142 151 98 100
KH/s per Watt 0.73 0.75 0.72 0.73 0.74 0.71 0.73 0.58 0.59
I played with different -H settings but on my rig -H 1 is the way to go for max. KH/s.
Autotune isn't working very well for me, it always come up with odd settings like 5x20 and 20% less KH/s.
While playing with different launch configs, it seems for my card anything with a total of 128 apples?
like 8x16, 16x8 or 4x32 works best.
For my situation NxM=128 and N<M, my card doesn't like N>M very much.
With the new 2013-12-18 version I had to set the Fan Speed to 100%.
With the old 2013-12-10 version 27% was sufficient to keep the temperature below 60° C.
The Power Consumption went up, but we now get more KH/s per Watt with Version 2013-12-18. Great Job!
A bit strange, K8x24 with the new version gives wild alternating readings on my Watt measurement unit.
At any other config in the table the readings were alternating only about +/- 0,5 to 1%.
Is there a way to reduce the power consumption of the graphics card by deactivating of video signal components?
I got only one card, but I am searching for a way to have a energy saving mode optimized for mining, while the system is only mining.
The usual Windows system settings for energy saving regarding the graphics cards are to coarse grained, at least I can't find good ones since we dont want to hibernate or shut down the entire system for 0 KH/s.
Cheers, Oskar.
