AMD Ryzen Threadripper Breaks 5.2 GHz + X399 Boards on Display!

[Aquinus]

Meh. It's LN2, so it doesn't show anything about real-world usage anyway.

This is literally what I think every time I see a news post about LN2 clocks.

 

[cadaveca]

This is literally what I think every time I see a news post about LN2 clocks.

It's still interesting, but not in the way presented. I want to know how much power is pulled through the 8-pin, and how the clocks and voltage scaled at each multiplier. That helps me judge how much cooling is needed for high OC 24/7, and what the voltage range of that max 24/7 OC should be. A screenshot doesn't give any info like that.

 

[Massman]

Yet another fine example of why power all fancy power management tech needs a nice big easily accessible disable switch.

AMD implemented this kill-switch with "OC mode" which is enabled when you go >XFR ratio.

The problem with the kill-switch is that you can no longer benefit from Core Performance Boost features. Specifically, having a higher core frequency in single thread. In OC mode you can only sync all core ratios, meaning that you are limited by the maximum stable overclock using all cores. Practically, it's possible that your single threaded performance is lower in OC mode because your all-core max stable frequency is lower than the XFR single threaded max frequency. The only way to not have this issue is by using reference clock and using CPU ratios lower than .

On Threadripper this will be even more pronounced since we now have 16 cores. It will be interesting to see the performance and power consumption results comparing overclocking via manual OC mode and using reference clock.

 

[buildzoid]

AMD implemented this kill-switch with "OC mode" which is enabled when you go >XFR ratio.

The problem with the kill-switch is that you can no longer benefit from Core Performance Boost features. Specifically, having a higher core frequency in single thread. In OC mode you can only sync all core ratios, meaning that you are limited by the maximum stable overclock using all cores. Practically, it's possible that your single threaded performance is lower in OC mode because your all-core max stable frequency is lower than the XFR single threaded max frequency. The only way to not have this issue is by using reference clock and using CPU ratios lower than .

On Threadripper this will be even more pronounced since we now have 16 cores. It will be interesting to see the performance and power consumption results comparing overclocking via manual OC mode and using reference clock.

OC mode doesn't fix the RAM instability bellow 0C.