Which one would be the best for my cpu?

[Polylactic]

i own a 8700k Ive noticed it starts to get over 80 degrees when underload, Ive currently one of these

https://www.pccasegear.com/products/37478/nzxt-kraken-x52-240mm-aio-liquid-cpu-cooler

 

i want to upgrade to this https://www.pccasegear.com/products/41889/nzxt-kraken-x72-360mm-aio-liquid-cpu-cooler

or the x62 which one would be better?

[VVoltor]

If the're the same thickness, the 360 has more surface area so I assume it cools a bit better. 

[Wh0_Am_1]

6 minutes ago, Polylactic said:

i own a 8700k Ive noticed it starts to get over 80 degrees when underload, Ive currently one of these

https://www.pccasegear.com/products/37478/nzxt-kraken-x52-240mm-aio-liquid-cpu-cooler

 

i want to upgrade to this https://www.pccasegear.com/products/41889/nzxt-kraken-x72-360mm-aio-liquid-cpu-cooler

or the x62 which one would be better?

Either should work just fine, of course and addition 120mm fan is always nice.

[Wh0_Am_1]

IF you were on a budget this would be a better option. https://www.amazon.com/Noctua-NH-D15-heatpipe-NF-A15-140mm/dp/B00L7UZMAK/ref=sr_1_3?ie=UTF8&qid=1523910415&sr=8-3&keywords=noctua+air+cooler&dpID=514csFxbcCL&preST=_SY300_QL70_&dpSrc=srch

[Wh0_Am_1]

Just now, Wh0_Am_1 said:

IF you were on a budget this would be a better option. https://www.amazon.com/Noctua-NH-D15-heatpipe-NF-A15-140mm/dp/B00L7UZMAK/ref=sr_1_3?ie=UTF8&qid=1523910415&sr=8-3&keywords=noctua+air+cooler&dpID=514csFxbcCL&preST=_SY300_QL70_&dpSrc=srch

Sorry forgot to insert the link!

[Polylactic]

money isnt a problem man haha

[1234vietnam]

x72 will perform the best although an x62 would be fine.

delidding would also help if you haven't done it already.

[Neokolzia]

If you already have a x52 your not going to see a massive improvement moving to other coolers it will just be "marginal" 

 

They have larger surface area's but as you already have a 240mm cooler it honestly isn't going to get that much better.

i.e upgrading from a x52 -> x62 or x72 or x1000 will only net you like 2-4 degree's likely. And isn't a true solution.

 

If money isn't a "problem" then Delidding your processor would be next thing I would look into.

______

 

Assuming your overclocked as well, and that you haven't delidded.  That your Processor probably isn't the best stock paste situation that would be the next logical step.