Benchmarks of my AMD 7970 3GB running at 900MHz core,
1000MHz mem and 0.975V in Afterburner, with yacminer-3.3.1-yac2-windows-x64 in Win 7 64bit on
http://yac2.ltcoin.net150Kh/s --scrypt --thread-concurrency 8192 -I 13 -g 2 -w 256 --lookup-gap
4 (uses 0,8GB RAM)
236.5Kh/s --scrypt --thread-concurrency 8192 -I 13 -g 2 -w 256 --lookup-gap
2 (uses 1,4GB RAM)
103Kh/s --scrypt --thread-concurrency 8192 -I 13 -g 2 -w 256 --lookup-gap
1 (uses 2,4GB RAM)
Benchmarks of my 7970 running at 900MHz core,
1500MHz mem and 0.975V in Afterburner, with yacminer-3.3.1-yac2-windows-x64 on
http://yac2.ltcoin.net151Kh/s --scrypt --thread-concurrency 8192 -I 13 -g 2 -w 256 --lookup-gap
4237.7Kh/s --scrypt --thread-concurrency 8192 -I 13 -g 2 -w 256 --lookup-gap
2 181Kh/s --scrypt --thread-concurrency 8192 -I 13 -g 2 -w 256 --lookup-gap
1 (140 for the card running Windows)
Higher thread concurrencies (900/1000/0.975):
229Kh/s --scrypt --thread-concurrency 38000 -I
13 -g 1 -w 256 --lookup-gap 2 (uses 2,6GB RAM)
233Kh/s --scrypt --thread-concurrency 38000 -I
15 -g 1 -w 256 --lookup-gap 2 (uses 2,6GB RAM)
233Kh/s --scrypt --thread-concurrency 38000 -I
17 -g 1 -w 256 --lookup-gap 2 (uses 2,6GB RAM)
Trying -g 2 crashes, increasing lookup gap kills he performance.
EDIT: At 1100/1500MHz I get: 287Khps, temp are getting to high though.