stress testing gpu's

Depends how much you care about stability I suppose. I'm furmark stable at 750mhz but not folding stable unless I drop the core clock to 725, so I don't particularly rate furmark as a good test.
 
use ati tray tools it's better for checking artifacting
furmark won't show artifact on me unless i go from 750-830 gpu and 900-1030 ram
whereas tray tools show artifacts before i even get to 790 and 975 respectivly
 
just try loading ati tool and this message came up.

The kernel mode driver does not seem to be running.
a device driver is required fo communication with your video hardware.
Whats that mean.
i clicked ok and tool come up and runs but theres not heat up stage. temps stay under 50c ran for 2 hours stable.
 
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