Quote from: pekv2 on May 11, 2013, 02:57:41 AM

Have you taken a look at this? And tried the settings for the 5770's listed?
https://github.com/litecoin-project/litecoin/wiki/Mining-hardware-comparison

Also, I use CCC 13.5 Beta 2, with my 5850's, which I think is basically the same as the 13.4 driver, but the 13.5 beta 2 works flawlessly with the supplied sdk. Most likely a setting rather your sdk, maybe?

I did look there. There are only 2 5770 recordings, and one is for Reaper. The other one I already tried, same result.

Here is my settings for my 5770:

Code:

--thread-concurrency 4000 --gpu-engine 850 --gpu-memclock 1200 --intensity 15 --worksize 256 -g 1

I also tried concurrency 3200, 4000, 4800, and 7680. They don't change more then 1kh/s.
Worksize 128 and 64 lower it by about 5kh/s
GPU_MAX_ALLOC_PERCENT changes nothing as well.

Quote from: eule on May 11, 2013, 03:32:58 AM

Here are the default values guiminer scrypt gives for a 5770 on Windows. Should perform almost the same in Linux imo?
thread concurrency: 3200
worksize: 256
intensity: 18
That gets me 200 khash/s. With intensity 11 I get 153kH, good for desktop use.

I'm using my exact same windows settings. I'd pull 200kh/s with my settings mentioned above on windows. I only pull 140kh/s on linux.