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Memory speed on the R9 290 is only 150mhz????
Well, I discovered something funny about my R9 290 and its memory speed...
I was playing with the Gallium HUD and noticed that...
The memory speed of the R9 290 is stuck at 150mhz according to gallium, this is with the low power profile, let's set it to performance:
Shader clock now changes... however memory clock remains at 150mhz!
Wait a moment! I have a 7970 on the computer upstairs, let's have a look:
Oooh the 7970 which is performing much, much faster doesn't clock the memory at 150mhz, instead it is 1.55Ghz! on the low power profile!!!
I have tried many games with the HUD and in the 290 no matter what; the memory speed remains constant at 150Mhz, the shader clock also exhibits a different behavior in the 290 than in the 7970, in low profile is stuck, and very low in performance profile, however let's concentrate on the memory clock first.
I'm wondering, is there a way that I can manually force the frequency of the memory on the R9 290?
Can anybody help me with this?
I know Michael also has a 290 that doesn't perform well, Michael, can you please, (or anybody else's affected by an slow 290) check if your 290 exhibits the same behavior?
My card flies on Windows by the way, I'm afraid something is wrong when handling the memory clock speed in the 290 in Linux, if there was a way to force the speed to be I do now know 1Ghz at least I would be able to test if my suspicions are correct.
I'm using Ubuntu 16.04.2 Mesa dev and Kernel 4.8.x
GALLIUM_HUD="fps+cpu,VRAM-usage,shader-clock+memory-clock" glxgears
can show the shader and memory clocks.
I was playing with the Gallium HUD and noticed that...
The memory speed of the R9 290 is stuck at 150mhz according to gallium, this is with the low power profile, let's set it to performance:
Shader clock now changes... however memory clock remains at 150mhz!
Wait a moment! I have a 7970 on the computer upstairs, let's have a look:
Oooh the 7970 which is performing much, much faster doesn't clock the memory at 150mhz, instead it is 1.55Ghz! on the low power profile!!!
I have tried many games with the HUD and in the 290 no matter what; the memory speed remains constant at 150Mhz, the shader clock also exhibits a different behavior in the 290 than in the 7970, in low profile is stuck, and very low in performance profile, however let's concentrate on the memory clock first.
I'm wondering, is there a way that I can manually force the frequency of the memory on the R9 290?
Can anybody help me with this?
I know Michael also has a 290 that doesn't perform well, Michael, can you please, (or anybody else's affected by an slow 290) check if your 290 exhibits the same behavior?
My card flies on Windows by the way, I'm afraid something is wrong when handling the memory clock speed in the 290 in Linux, if there was a way to force the speed to be I do now know 1Ghz at least I would be able to test if my suspicions are correct.
I'm using Ubuntu 16.04.2 Mesa dev and Kernel 4.8.x
GALLIUM_HUD="fps+cpu,VRAM-usage,shader-clock+memory-clock" glxgears
can show the shader and memory clocks.
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