Question i5 12600k never hitting 4,9Ghz

[jq0213]

Its never hitting the turbo speed according to task manager, even during a benchmark like Geekbench.

For reference, my old i9 11900KF had better single-core performance in Geekbench than my current i5, although it should be the other way around.

What can I do to get more performance out of my i5? I feel like its holding back performance in games like MW3.

Specs:

 

[rgd1101]

For reference, my old i9 11900KF had better single-core performance in Geekbench than my current i5, although it should be the other way around.

11900kf max turbo is 5.3 vs 12600k 4.9

try turning off e-core for gaming?

 

[jq0213]

11900kf max turbo is 5.3 vs 12600k 4.9

try turning off e-core for gaming?

Tried it but turning off e-core gives me 20-30 less fps in Mw3 for some reason, as well as in other games.

 

[rgd1101]

the 11900kf have more real performance core 8 vs 6
what the motherboard? running the latest bios?

 

[jq0213]

the 11900kf have more real performance core 8 vs 6
what the motherboard? running the latest bios?

B660 Gaming X, and yeah its running the latest bios.

as for single-core, shouldn't the 12600k have better performance? It is 16% faster in a single-core Geekbench v6 test - 2554 vs 2197 points according to (https://nanoreview.net/en/cpu-compare/intel-core-i9-11900f-vs-intel-core-i5-12600k)

 

[uWebb429]

yeah its running the latest bios.

That is usually a mistake.

Run HWiNFO and check to see if Undervolt Protection or CEP current protection are enabled. These features can kill the performance of K series CPUs when run on B660 boards.

Run Cinebench R23 and see how your score compares to other 12600K CPUs. If you see a huge difference, check what microcode version the BIOS is using. Microcode versions after 0x104 can kill performance. Some motherboards have an option in the BIOS so you can still run the early microcode 0x104.

The other problem is single core benchmarks being scheduled on an E core and not on a P core like you would assume. Watch the Task Manager for this problem.

 

[jq0213]

That is usually a mistake.

updated a month ago

Run HWiNFO and check to see if Undervolt Protection or CEP current protection are enabled. These features can kill the performance of K series CPUs when run on B660 boards.

It is enabled according to ThrottleStop, but I can't seem to find a way to disable it. I've set VCore Current Protection to Extreme but it doesn't seem to disable Undervolt Protection. Do you know how I can disable it?

 

[uWebb429]

Do you know how I can disable it?

The only way to disable Undervolt Protection is to install an early BIOS version that uses microcode 0x104.

Do some Google searching for your exact motherboard model. Someone somewhere has found a fix for this problem.

Did you try running Cinebench yet? A 13600K with Undervolt Protection disabled can score 24000 in R23 by using the early 0x104 microcode. Some Asus B660 and B760 boards make life simple. They have an option in the BIOS to select the 0x104 microcode.