Why single core speed is faster even if advertised ghz is lower?

[matrixmodulator]

Why single core speed is faster even if advertised ghz is lower?

I have a i7 7700k right now and thinking getting a i7 12700k.

I see here the 12700k has faster single core speed but my old cpu is 4.2ghz and this 12700k is 3.6ghz, what makes the 12700k faster in single core exactly?

https://cpu.userbenchmark.com/Compare/Intel-Core-i7-7700K-vs-Intel-Core-i7-12700K/3647vs4119

I'm interested in this because i plan to use this for audio recording with a DAW as i understand it, it's important to have fast single core speeds.

Also another question is, i see 12700k can be boost to 5ghz but is that really just when it needs it from time to time or i can make it run all the time at 5ghz while i'm doing heavy audio processing in the DAW?

Thanks !

[HanZie82]

The newer CPU might have more IPC. (click for more info what IPC means.)

 

TL:DR the newer CPU might be able to do more in one cycle compared to the older one, thus need less cycles.

[Zando_]

Boost clocks are the reason, the 12700K boosts to 5Ghz:https://ark.intel.com/content/www/us/en/ark/products/134594/intel-core-i712700k-processor-25m-cache-up-to-5-00-ghz.html. So 500Mhz faster than the i7 7700K (It boosts to 4.5Ghz: https://ark.intel.com/content/www/us/en/ark/products/97129/intel-core-i77700k-processor-8m-cache-up-to-4-50-ghz.html) along with the improved IPC (Instructions Per Clock, it can do more stuff per clock cycle), makes it a much faster chip. 

 

It is a K chip (unlocked multipliers), so with a Z chipset motherboard you should be able to manually OC it to 5Ghz. 

[Chris Pratt]

 

[emosun]

the "frequency" that something happens..... is dependent on WHAT is happening so frequently.

If I did nothing at all more frequently than someone doing a lot of work less frequently..... then they would be doing more work at a lower frequency than me.

[freeagent]

^^

 

I read that twice to be sure

 

12700 from a 7700 is a massive upgrade.. You should be thoroughly impressed.

 

They boost on their own so you don't have to overclock.. no fun in that. But the performance is intense.

[matrixmodulator]

32 minutes ago, Zando Bob said:

Boost clocks are the reason, the 12700K boosts to 5Ghz:https://ark.intel.com/content/www/us/en/ark/products/134594/intel-core-i712700k-processor-25m-cache-up-to-5-00-ghz.html. So 500Mhz faster than the i7 7700K (It boosts to 4.5Ghz: https://ark.intel.com/content/www/us/en/ark/products/97129/intel-core-i77700k-processor-8m-cache-up-to-4-50-ghz.html) along with the improved IPC (Instructions Per Clock, it can do more stuff per clock cycle), makes it a much faster chip. 

 

It is a K chip (unlocked multipliers), so with a Z chipset motherboard you should be able to manually OC it to 5Ghz. 

oh i see, thanks!