Recent content by Eric Scheffel

Okay, So perhaps to slowly conclude this thread, I now have two AMD 280X cards, one Sapphire Dual-X and another Powercolor TurboDuo OC. I primarily use them for scientific OpenCL programming. They both came stock with 1.2-1.25V at a bit over 1Ghz on the core and both were relatively hot and...

Thanks for all of this... but I am one of those strange guys who have not booted a Windows computer in about 10 years. I am a die-hard Linux user. By the way, you seem to be indicating that Powercolor cards seem to be of lower quality (higher leakage). Does it mean that I got lucky with my model...

Hi there, Okay my main goal is to let the card run super-cool and also very quiet, i.e. at low temps (in 3D). My Powercolor 280x came with a max voltage of 1,2V which led to crazy temperatures and loud fan speeds. That is why I wanted to undervolt/underclock. I am not gaming with this card at...

Hi there, Yes I am aware of Furmark's general notoriety. But would it kill a GPU that has been severely UNDER-clocked and UNDER-volted? I am not so sure about that... Also I know that the classical benchmark for OpenCL is Luxmark, so will try that later. I would still like to get some general...

Hi there, Actually after some experimentation I now ended up with this configuration: #6 VDDC: 1025 Core Clock: 800 MemClock: 1250 #0 VDDC: 1025 Core Clock: 800 MemClock: 1250 Fan profile is 40% at 60C and 60% at 70C. This setting completely eliminates boost and runs ultra-cool in Furmark at...

Hi there, I am using AMD Tahiti-based cards mostly for programming numerically intensive OpenCL applications, preferably in double-precision arithmetic. Because AMD's and NVIDIA's most recent mainstream cards have severe FP64 caps (1/8, 1/16, 1/24 or even 1/32) I am always on the lookout for a...