Choosing between two coolers
12 minutes ago, Quadriplegic said:Does DR4 have bigger surface area and 135 mm fan?
Hans looks more like a competition to 212 to be honest
The DR4 has a 135mm fan but not more surface area -- at least not for the fins.
Not accounting for the heatpipes, the surface area for the 50 fins on the Hans is ~541975mm² and the 51 fins DR4 is ~506328mm².
There are more factors in cooler performance than just fan size and surface area. The types of heatpipes, how well they contact the fins, mounting hardware, and other factors all play a role in performance.
Due to number of factors and how the resulting performance isn't easy to determine with them, I recommend looking at benchmarks instead which indicate the Hans performing better than the Hyper 212 Evo but still slightly worse than the DR4.
Some examples:
http://www.tweak.dk/review/Reeven-RC-1205-HANS-CPU-koeler/2461/3/1
https://www.overclockersclub.com/reviews/reeven_hans_rc1205/4.htm
https://www.hwcooling.net/test-80-chladicov-na-procesor-starsich-i-novsich-2005-2015/2/
https://www.bjorn3d.com/2014/05/reeven-justice-rc-1204-cpu-cooler/2/

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