[Bug 91880] Radeonsi on Grenada cards (r9 390) exceptionally unstable and poorly performing

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91880

--- Comment #127 from Chris Waters <doublebytegames at gmail.com> ---
I've noticed that on my Win7 install if I up the memory clock a good (1700MHz+)
bit I'll get the same exact artifacts as I would in Linux. Maybe the driver is
trying to switch to too high of a clock for memory?

Second question, is there any way to just force the memory clock to stay at
1500MHz? If the bug is caused by memory switching (and not the memory being
clocked way too high), then forcing the memory to stay at the max standard
clock should give us the stability of 150MHz.

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