Yesterday, we detailed how troubles with AMD’s R9 290′s fan profile could lead the GPU to return slower-than-expected performance under load. This was a problem that reportedly struck both reviewers and certain retail cards and left multiple sites pulling their recommendations on the R9 290. According to AMD, the problem was caused by improper fan settings on retail cards and imprecise tuning that relied on power modulation (PWM) rather than a specified RPM speed. As a result, the company said, some retail cards that were supposed to be spinning at 47% were actually spinning as much as 350 RPM slower — thus causing the overheat issue. Last night the company pushed a new driver that would supposedly fix this by relying on RPM tuning to set fan speeds rather than PWM manipulation.
Justin Jaynes, an acquaintance of mine at Seeking Alpha, offered to contribute some results to our testing as well. He’d just ordered and received a Sapphire 100362SR. Armed with his retail card and the reference GPU AMD shipped us with a default driver, we set out to test the lay of the land. There’s good news, from multiple quarters — but first, our test results.
http://www.extremetech.com/gaming/1...s-r9-290-throttling-problem-with-a-new-driver

Last edited: