Do cheap H670 boards support BCLK overclocking with K cpus?

[Alim]

I already bought Asus H670-PLUS D4 board and now I'm choosing between 12600K and 12400. Costs are 380 vs 220 dollars, including cooling.

My primary workload is single-threaded, hence I would like to overclock 12600K to 5.1 or 5.2 ghz using bclk on 1 or 2 cores. Is it possible and what issues might arise?

 

 

 

[Levent]

I believe its on only Asus B660(?) boards. There is absolutely no sane reason to get a H and B series motherboard and pair it with a K series CPU. Just waste of money.

[Jurrunio]

Only the B660-F and B660-G among all non Z690 boards from Asus support BCLK OC. Also K or not does not affect their BCLK OC support, but memory OC range is much better on the K because of unlocked System Agent voltage. Single thread heavy tasks are often memory intensive as well.

 

That's why you dont buy secondary components before having solid plans of the major components.

[Alim]

5 minutes ago, Levent said:

I believe its on only Asus B660(?) boards. There is absolutely no sane reason to get a H and B series motherboard and pair it with a K series CPU. Just waste of money.

Yeah, I agree it's suboptimal, but still 12600K has 4.9 boost clock vs 4.4 ghz, 10% difference for single threaded workload + 4 not very useful e-cores.

12400 and 12600K are two least expensive 12th gen cpus in stock, everything else is out of stock. 

4 minutes ago, Jurrunio said:

Only the B660-F and B660-G among all non Z690 boards from Asus support BCLK OC. Also K or not does not affect their BCLK OC support, but memory OC range is much better on the K because of unlocked System Agent voltage. Single thread heavy tasks are often memory intensive as well.

 

That's why you dont buy secondary components before having solid plans of the major components.

Initially I had 12400 in plans, but 12600K@5.2 ghz seemed to be beneficial for my workloads. Does 12400 handle 3600c18 DDR4 memory well?

 

I would probably go with 12400, since it's hard to justify $160 for 10% boost unless there are additional benefits. Hopefully Intel's new stock cooler isn't as terrible as they used to be.

[Jurrunio]

1 minute ago, Alim said:

Does 12400 handle 3600c18 DDR4 memory well?

Not really, some samples are not stable at 3600MHz memory. That's why the locked SA voltage is painful

[Jonathan Lee]

51 minutes ago, Alim said:

Initially I had 12400 in plans, but 12600K@5.2 ghz seemed to be beneficial for my workloads.

53 minutes ago, Alim said:

I would probably go with 12400, since it's hard to justify $160 for 10% boost unless there are additional benefits

Something to also keep in mind is that the 12400 is a 6 cores CPU, while the 12600K is a 10 core CPU (6p + 4e). So there is a lot more than just the clock speed difference. You will have generally smoothness of game and better frame pacing and timing with the extra e cores take care of the background task.