Re: CGMINER GPU bitforce overclock monitor fanspeed RPC in C linux/windows/osx 2.2.4
From https://bitcointalk.org/?topic=7964.0
The phatk kernel still has one huge advantage over poclbm, which is being able to achieve peak performance at very low mem speeds (I'm using 150MHz myself on two 5850's), and which saves alot of $$$$ on the long run and allows for better o/c on the gpu core. Until someone develops a kernel that gets same/better results with a low mem clock (big worksize), people will be reluctant to change.
Below is a graph I came up with for my 5870 with the core clocked at 950.
V1 is the speed with no VECTORS option enabled, V2 is with using the standard "VECTORS" and V4 is using the new "VECTORS4" command line option. The numbers with them show the WORKSIZE.
V1 is the speed with no VECTORS option enabled, V2 is with using the standard "VECTORS" and V4 is using the new "VECTORS4" command line option. The numbers with them show the WORKSIZE.
The phatk kernel still has one huge advantage over poclbm, which is being able to achieve peak performance at very low mem speeds (I'm using 150MHz myself on two 5850's), and which saves alot of $$$$ on the long run and allows for better o/c on the gpu core. Until someone develops a kernel that gets same/better results with a low mem clock (big worksize), people will be reluctant to change.