Rukurumi wrote:
不過3950x用在CAD已經快很多了,應該不太再需要超頻(恕刪)
在linux 預設狀態下, 大概是4倍於 E3-1290v2 的效能.
我有另外裝了win10 跟驅動. 確實可自動boost 到 4.5G , 溫度也還可以.
效能跑分.非常好, 燒機24小時也很穩.
但是簡化版的win10 跟沒有驅動, 就會跑 3.5G 的bios 最高頻.
實際使用是Linux 作業系統 , 用 cpupower 指令去看boost 範圍...
intel E3-1230v2的cpu boost 很完整.
linux-cptm:~ # cpupower frequency-info
analyzing CPU 0:
driver: intel_pstate
CPUs which run at the same hardware frequency: Not Available
CPUs which need to have their frequency coordinated by software: Not Available
maximum transition latency: Cannot determine or is not supported.
hardware limits: 1.60 GHz - 3.70 GHz
available cpufreq governors: performance
current policy: frequency should be within 1.60 GHz and 3.70 GHz.
The governor "powersave" may decide which speed to use
within this range.
current CPU frequency: Unable to call hardware
current CPU frequency: 3.47 GHz (asserted by call to kernel)
boost state support:
Supported: yes
Active: yes
3500 MHz max turbo 4 active cores
3600 MHz max turbo 3 active cores
3700 MHz max turbo 2 active cores
3700 MHz max turbo 1 active cores
======================
AMD 3950x 的 Boost 就很詭異...然後我手動設定最高範圍..也無法把值寫進去
localhost:~ # cpupower frequency-info
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: Cannot determine or is not supported.
hardware limits: 2.20 GHz - 3.50 GHz
available frequency steps: 3.50 GHz, 2.80 GHz, 2.20 GHz
available cpufreq governors: ondemand performance schedutil
current policy: frequency should be within 2.20 GHz and 3.50 GHz.
The governor "ondemand" may decide which speed to use
within this range.
current CPU frequency: 2.20 GHz (asserted by call to hardware)
boost state support:
Supported: yes
Active: yes
Boost States: 0
Total States: 3
Pstate-P0: 3500MHz
Pstate-P1: 2800MHz
Pstate-P2: 2200MHz
======================
可能是super io 的IC 還沒掛好驅動...效能被限制了..不過還是有四倍的E3 效能..
可能這顆cpu 還太新, 要等人更新了.