I my system is currently running a 4770k on a itx board on the stock cooler. I recently bought a noctua NH-L91 low profile heat sink for the system. Do guys think this cooler will be sufficient to render videos for 16 hours at a time. I am not over clocking the CPU at all, the 4070k was on super sale when I bought it.
Probably not, but I have tried running my 4670K OC to 4.2Ghz and with the Noctua L9i to see how it would do and it handled gaming pretty well. even stressing it with AIDA64. but depending on your OC i probably wouldn't do it.
If you want a good cooler you can get the Noctua NH-U12P. i think it's like 60 bucks right now. this the cooler i am currently using. and it handles a 4.4Ghz OC like a champ.
Scythe Kozuti is a good option too.
If you are looking for low profile get a Cryorig C1
I am not over clocking the CPU at all,
Should be fine.