Sapphire 270X Vapor-X low hashrate :(

[sameev29]

A friend of mine is using a Sapphire 270X Vapor-X 2GB gpu. But the most he can get from this card is 350KHash/sec.He is using AMD Catalyst 13.12 and the following setting:

setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer --scrypt  -o stratum+tcp://url:port -u username.workername -p password --no-submit-stale -I 13 -g 1 --thread-concurrency 8192 --lookup-gap 0 -w 256 --gpu-engine 1120 --gpu-memclock 1500 --auto-fan --auto-gpu --temp-target 70 --temp-overheat 80 --temp-cutoff 85 --queue 3 --scan-time 40 --expiry 120 --gpu-powertune 20

He can't set TC higher than that without setting the LG higher. Any help would be greatly appreciated.

[insanetackle]

cgminer --scrypt  -o stratum+tcp://url:port -u username.workername -p password --thread-concurrency 15508 --lookup-gap 2 --gpu-engine 1050 --gpu-memclock 1400 -w 512 -I 18


getting 435 with xfx 270x

hope this helps going to run hot 85c -90c

[Xardas2014]

Sorry about bumping an old thread, but this might help someone searching. This should give you a nice 420-430KH/s baseline to tweak from.....also make sure your Windows power options are set to High Performance...Control Panel>Power Options. Delete any .bin files in your cgminer folder....

Create a .bat with this:
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer.exe --scrypt -o stratum+tcp://us-east.chunkypools.com:6666 -u Xardas.1 -p 123 -I 19 -w 256 -g 1 --thread-concurrency 15232 --gpu-powertune 20

Next you can do some tweaking to GPU engine and mem. Getting 450KH/s isn't very hard and the card should run ~70C@40ish% fan speed depending on your ambient.

[zorro869]

Bump up your intensity. 13 is too low, you should be able to do 19.

Check this post out on tweaking your card.

http://www.reddit.com/r/dogemining/wiki/index/radeon_tuning_guide