Cooling a locked intel CPU

[Burgerbob]

I’m fairly new to the forum so excuse me if this isn’t the right place.

 

I’m much more familiar with AMD but I got an i5-9400f in on sale for $100 and I’m building a small sleeper-ish pc. I’m not concerned with looks or noise. With the way intel processors run and boost, will I see any performance benefit whatsoever using an aftermarket cooler on a locked intel cpu?

[GhostRoadieBL]

you will see some improvement in the length of time the CPU stays boosted and a bit higher clockspeeds but it's really minor. If you are planning on doing long renders or very heavy and long workloads you will notice a difference but for the average user (including gaming) there is little to no difference unless you are throttling due to terrible all glass cases or very restricted airflow cooling. Aftermarket coolers like the hyper212's are perfect for this use case. 

[Burgerbob]

1 minute ago, GhostRoadieBL said:

you will see some improvement in the length of time the CPU stays boosted and a bit higher clockspeeds but it's really minor. If you are planning on doing long renders or very heavy and long workloads you will notice a difference but for the average user (including gaming) there is little to no difference unless you are throttling due to terrible all glass cases or very restricted airflow cooling. Aftermarket coolers like the hyper212's are perfect for this use case. 

Thank you that’s good to know. It’s going in an matx case with 4 case fans so I think the airflow should be fine. I’ll keep an eye out for any throttling but primarily I’m just not terribly familiar with intels “turbo boost” technology so I wasn’t sure if it would automatically take advantage of additional cooling. Thanks again

[GhostRoadieBL]

it's (on a basic level) identical to Ryzen's boost tables. just takes the current parameters and boosts up to as far as the power/temp/"time at boost"/# of cores at boost table allows and will stay there until one of the parameters causes it to move up or down the clock table.