Intel stock fan vs aftermarket Heatsink

[renegade44]

Just bought a i5-3570k and ASUS P877-V Pro and just on the stock heatsink I'm getting 4.2Ghz P95 stable. Heat is about 65-70C on Asus probe and about 85-88C on coretemp. Overclock was acheived using asus auto tune in the BIOS

So the question is just what kind of difference would buying a good heatsink like a thermalright true or a hyper 212 do?

95-99% of the time I'm just surfing the net and doing college courses on MS office 2010.

Poster is an experienced overclocker although somewhat out of the loop for the last year or so, just upgraded from a Gigabyte P55-usb3 i3-550 combo which also did 4.2ghz

Superpi mod 1.5 1M is 8.932 which is a lot faster than my p55-usb3 combo by about a second.

[profJim]

Read online reviews of the aftermarket cpu cooling models that you are considering. The better review sites should include charts that show how comparable models perform with stock and overclocked settings, at idle and at full load. They usually include the stock Intel cooler's performance.

Make sure that there is adequate clearance between the new cpu cooler and the height of the memory's heat spreaders.
http://www.noctua.at/pdf/infosheets/...tasheet_en.pdf shows the dimensions for their NH-D14 cooler at the bottom of the page.
Some but not all cpu cooler manufacturers provide a diagram that shows the dimensions.

[wazza300]

stock coolers are good for emergency's when you have no other cooler at hand,with ivybridge you want the best cooler you can get your mitts on,it will be a huge improvement over the stock heatsink,anything from 10-20c drop in temps

[parsec]

ASUS Probe is showing a reading that is not a core or the usual single CPU temp, they've been doing that for a while on their monitoring software. Coretemp is showing a more accurate reading. The maximum temp for your CPU is 105C.

For light use like you mentioned, the stock cooler will be fine, but of course a cooler like you mentioned will make a big difference. What are the idle temps?