EVGA GTX 680 OC (+40/+500) CUDA 8 – 375 h/s

Monero
Scratchpad: 2MB

  { "index" : 1,
"threads" : 32, "blocks" : 16,
"bfactor" : 6, "bsleep" :  25,
"affine_to_cpu" : false, "sync_mode" : 0,
},

Compiled most recent (6/2/2018) xmr-stak with CUDA 8 options. OC with nvinspector, +40 MHz on clock (~1200 MHz total), +500 MHz on VRAM (Samsung, 3500 MHz total), power @ 100%. Had to bump fans up to 65%. Drivers are most recent stock (397.93), the CPU is a stupid old Core2Duo, and there’s a 980Ti in the system mining other stuff.

No custom BIOS or special driver mods. Tested with all reasonable permutations of multiple of 8 for threads and blocks – 8/8, 8/16, … 96/8, 128/8 and a few bfactor/bsleep values (4-8/15-50) and this had the least impact on the other miner. Could eek out an extra 5 h/s with bfactor = 15, but system would lock and cause the other miner to drop hash rate.

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Denny

I have the same gpu but my hashraten drops halfsize after cryptonightV8. Have you an Idea or an config for this gpu? I used Cuda 10