Yes there is a difference. While most of the coolers that were being used on the 1st generation Intel® Core™ processors are also being used with the 2nd generation Intel Core processors, there are some cases where I have heard that they aren’t compatible. Please check with the HSF (heatsink/fan) manufacturers to see the HSF is compatible. I can tell you that the Cooler Master Hyper 212+ is a good 3rd party cooler that will work for both.
I`m looking at all models but trying to keep some logic to the purchase. Heres the deal. With the intel stock cooler, I had overclocked the cpu to 4.1. i5 2500k. While running my everquest2 game, none of the cores reached over 65c. When running two game accounts then they get up to 85c. I am planning to push the cpu to 4.5. maybe. I have the cm haf922 case so heat doesnt build up inside.
I was looking at cm h100 liquid but i think that might be over kill so I`m thinking about something like the hyper 212 or a step better.
I ran the stock cooler on my Intel® Core™ i7-2600K for a while and had no problems but I recently put the Cooler Master hyper 212+ plus on it and it works great for me. I am holding temperatures in around 32c.
I put a thermalake frio in. Ran well operating two game account at half push/pull speed. 61c was the highest it got. 1 account it ran upper 40 to low 50c.
At the moment, idle temp range from 30 to 37c. I`m curious about the fluctuation. While playing with intel ext tuning, the fans ran from 1600 to 2000 rpm then while extra core volts was added the fans dropped to like 967 rpm for a sec or 2 then back up. A little weird to me.