It’s always an interesting day around the mining scene when AMD releases new graphics drivers!
AMD Released Catalyst 14.9 for Windows/Linux 9/29/14 – Official release notes
No mentions of OpenCL, and heres the results of our initial round of testing:
|Miner: sgminer 5.0.0-6-ge481||(Sgminer 5 main branch 9/30/14)|
Reference card: MSI 7950 Twin frozr
Voltage: 1.188 Powertune: 20
Engine: 1120 Memory: 1250
|System: Sempron 145||Intensity: 18, Worksize 64||GPU-Threads: 2|
|Ram: 4gb 1600|
|Mobo: Asrock 970 extreme4||Temp w/ 75*f ambient|
|OS: PiMP 1.7.0 (Debian 7 64 bit kernel 3.2.x )|
|13.12 catalyst, 64 bit build||X11: 3.2mh||61*c|
|14.6 catalyst, 64 bit build||X11: 3.926mh||69*c|
|14.9 catalyst, 64 bit build||X11: 3.522mh||66*c|
|OS: PiMP 1.6.0 (Debian 6 32bit / bigmem (PAE))|
|13.12 catalyst, 32 bit build||X11: 3.2mh||62*c|
|14.6 catalyst, 32 bit build||X11: 3.922mh||70*c|
|14.9 catalyst, 32 bit build||X11: 3.625mh||67*c|
Note: 14.9 hashrate ramp up time was very long, up to 3-5 minutes to get up to its maximum speed vs <1-2 minutes for 14.6/13.12
Well, there you have it, at least for X11 14.9 is a net loss right now on both 32-bit and 64-bit platforms. Check back in the coming days for the public release of Pimp 1.6.0 and 1.7.0!
Also, Scrypt was tested and still only produces HW Errors under 14.9, meaning 13.12 is the only driver version able to mine scrypt/scrypt advanced N coins.
We’ll add more algorithms to this table as time allows to gather more data, and see if any algorithms benefit from AMD’s latest changes.