Ryzen users, please share your thoughts
by marginwalker80 from LinuxQuestions.org on (#5FQV2)
I have just assembled a PC based on Ryzen 5 3600, ASRock B450-Pro4 and 32Gb 3200MHz DDR4.
I was used to have an intel i5-4670 and temps were "normal", as far as i remember about 65C at full load.
With default MB settings and stock cpu cooler, the Ryzen temp spikes around 90C under full load (measured with 'sensors') and oddly enough (at least to me) the cpu frequency *decreases* to about 4.0GHz.
I was expecting some overclock (PBP, auto) would improve performances, i was shocked when i found it's just the opposite: despite huge power consumption, the cpu still stuck below 4.0GHz when stressed.
I don't like fully manual OC: having all cores running at full speed all the time is just overkill and the performance gain at 4.3GHz is negligible for everyday usage.
I tried different MB settings, and the best overall performances were achieved when engaging the "Eco mode" in the ASRock bios: the cpu TDP is limited to 45W, and I manually lowered the cpu max voltage to 1.285V.
By setting the cpu governor to 'performance' (with boost on) the cpu still hits 4.2GHz under moderate loads. Code:echo performance > /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
echo 1 > /sys/devices/system/cpu/cpufreq/boostAfter running 'stress -c 12' overnight (Tamb = 20C), cpu temps never exceeds 74C (at 65W TDP).
When governor is set to conservative (boost off): Code:echo conservative > /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
echo 0 > /sys/devices/system/cpu/cpufreq/boost the TDP is down to 12W (!!), idle temp is 40C, stress temp is 64C, and interestingly there is no significant performance loss for (my) daily use.
When I first saw the questionable CPU performance using default TDP/Voltage settings, I initially blamed the lack of ACPI support for the ASRock MB, then I googled for a while and found a lot of people complaining about their Ryzen cpu temps when using default settings.
Have you had the same experience? Which are your preferred settings?
Considering this, are AMD stock (and overclocking) settings almost pointless?
Thanks!
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TLDR: are default Ryzen TDP settings detrimental?
----------
I was used to have an intel i5-4670 and temps were "normal", as far as i remember about 65C at full load.
With default MB settings and stock cpu cooler, the Ryzen temp spikes around 90C under full load (measured with 'sensors') and oddly enough (at least to me) the cpu frequency *decreases* to about 4.0GHz.
I was expecting some overclock (PBP, auto) would improve performances, i was shocked when i found it's just the opposite: despite huge power consumption, the cpu still stuck below 4.0GHz when stressed.
I don't like fully manual OC: having all cores running at full speed all the time is just overkill and the performance gain at 4.3GHz is negligible for everyday usage.
I tried different MB settings, and the best overall performances were achieved when engaging the "Eco mode" in the ASRock bios: the cpu TDP is limited to 45W, and I manually lowered the cpu max voltage to 1.285V.
By setting the cpu governor to 'performance' (with boost on) the cpu still hits 4.2GHz under moderate loads. Code:echo performance > /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
echo 1 > /sys/devices/system/cpu/cpufreq/boostAfter running 'stress -c 12' overnight (Tamb = 20C), cpu temps never exceeds 74C (at 65W TDP).
When governor is set to conservative (boost off): Code:echo conservative > /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
echo 0 > /sys/devices/system/cpu/cpufreq/boost the TDP is down to 12W (!!), idle temp is 40C, stress temp is 64C, and interestingly there is no significant performance loss for (my) daily use.
When I first saw the questionable CPU performance using default TDP/Voltage settings, I initially blamed the lack of ACPI support for the ASRock MB, then I googled for a while and found a lot of people complaining about their Ryzen cpu temps when using default settings.
Have you had the same experience? Which are your preferred settings?
Considering this, are AMD stock (and overclocking) settings almost pointless?
Thanks!
----------
TLDR: are default Ryzen TDP settings detrimental?
----------