Originally posted by skeevy420
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Over 100 Linux Gaming/Graphics Tests Looking At The Radeon RX 570 vs. GTX 1650
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Originally posted by tuxd3v View PostCannot say the same about RX580, which is headless mode uses around 34 watts..
Some users posted here saying that it consumes 6 watts of power if undervolted, but I couldn't find undervolt controls via sysfs..
More on topic: With AMD you get a 97% free-as-in-freedom driver. That is a (big) plus for me. (The 3 remaining percent go to these little firmware blobs you load with the kernel for the microcontrollers on the card.)Stop TCPA, stupid software patents and corrupt politicians!
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Originally posted by GreenReaper View Post
You appear to have confused system power with graphics card power. The PCIe slot limit is 75W (or arguably closer to 66W?). The CPU, PSU, drives, RAM take power as well.
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Originally posted by fuzz View Post
Whenever I run WattmanGTK and set the kernel parameter it suggests I get really bad graphic artifacting. Did you run into that at all?
For me, artifacts were usually the result of the gpu not clocking up at all or fast enough...but that was early amdgpu days with my 260x and I could use the following to "fix" it. Changing "high" to "auto" goes back to the default setting. Eventually amdgpu.dpm=1 fixed that for me, been using it ever since....
Code:echo high > /sys/class/drm/card0/device/power_dpm_force_performance_level
Code:amdgpu.dpm=1 amdgpu.dc=1 amdgpu.ppfeaturemask=0xfffd7fff amdgpu.deep_color=1 amdgpu.exp_hw_support=1
Last edited by skeevy420; 16 May 2019, 01:46 PM.
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Originally posted by AndyChow View PostWow, I didn't think the GTX 1650 would perform so badly. Very eye-opening.
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Originally posted by skeevy420 View Post
Oh, you mean the tedious method I've been meaning to do to find my exact limits...to do that right would take days. An added level of difficulty and time is having to run game benchmarks in addition to GPU benchmarks when doing that. I've very often experienced that what works for benchmarks will crash when playing a game or whatever...I consider it to be an unstable UV if programs crash even if benchmarks and the desktop don't.
Is the "leave state 0 alone, set all other states to what you're testing" method acceptable? That's the easiest way to test and the way I like finding exact values. When I do get around to doing this myself (within in the next two months...I'm not in any hurry since what I have fixed my heating issues) I'll keep you in mind and record my results.
I know that ASUS pushes some of their 580s all the way up to 1466mhz. My MSI can do that with my card's stock voltage of, IIRC, 1250 or 1260, but somewhere around 1150mv is where my card starts to really heat up and the fans spin up to max.
The best thing you can do is test your 1.040mv if it can hold 1.35ghz and your 1.100mv if it can hold 1.45ghz. Then no more volts than 1.100. I know for sure that the first three power levels are used even on video playback but i have no idea what voltages should i use to get 15w instead of 35w that is on idle today.
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Originally posted by birdie View PostBut I guess since NVIDIA doesn't release open source drivers for their GPUs then whatever they do sucks by default for most Phoronix readers.
It's still a lot better than my server's MGA200. I had to drop the console framebuffer to 8-bit colour because scrolling was using 100% CPU!
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