 the Noctua NHD14 widely regarded as One of if not the best air cooler on the market This is a six heat pipe dual tower cooler that includes a 140 millimeter fan in the center between the two towers A 120 millimeter fan on the outside of one of the towers and then it should you show so desire I believe you can actually install an additional 120 millimeter fan on the other tower so this isn't a push-pull, well rather push-pull-push configuration this one's doing pushing and pulling through radiator or heat sink fins and Down here make contact with the CPU somewhere in there You can see that they've cleverly designed the height to be just barely acceptable for high High profile memory modules such as the mushkin red lines that I am using here today Alright, so I have for the longest time wanted to test this CPU heat sink against this CPU liquid cooling unit so this is the Corsair H70 is a high fin density high thickness Single 120 millimeter radiator liquid cooling system So I can tell you guys right now any thin low profile radiators System such as a cool it eco or an h50 is going to get smoked by this bad boy I mean, it's fairly simple science at this point more surface area Far less surface area for the for the thin profile Radiator liquid cooling units so that's that ain't gonna happen for them, but the h70 might stand a chance So what I'm gonna be doing today is I'm gonna take the H Well first I'm gonna test the NH D 14 on my 4.7 gigahertz Core i7 2600 K this is with a fair over fair bit of over voltage So we've got a fair bit of heat to dissipate here I'm going to first test the NH D 14 and its stock configuration Then I'm going to take this 120 mil fan another NFP 12 I believe it is a 1300 or whatever. It's called the the one 1300 rpm pressure Fan so the one with the blades like that not the other one and I'm gonna install two of those on the h70 And see how it performs compared to the NH D 14 I'm very excited about this because the h70 is the highest performance Single 120 millimeter liquid cooling pre-filled unit and the NH D 14 as I mentioned before is one of the highest Performing air coolers on the market. So let's see which one wins this heavyweight tilt So here I am running eight instances of prime 95 on my core i7 2600 K so my max core temperature is 74 degrees and the minimum one is 68. So we're gonna call it sort of somewhere in that 68 to 75 now 68 to 75 degree range On the NH D 14 So I just put the h70 with the two noctua fans onto the CPU you can see temperatures are a touch higher already and You have to note that unlike an air cooler where the heat pipes basically reach their maximum temperature heat carrying efficiency, etc right off the bat a liquid cooling unit actually takes a while to reach equilibrium where the liquid inside has to heat up to the point where it Increases the efficiency with which the radiator can exchange the heat between the water and the air and They higher the temperature of the liquid inside the more heat is able to be exchanged until it reaches a point where it No longer continues to rise with a constant heat load. So I'm going to give it some time to see how high it goes But I think we can already see that the D 14 comes out ahead with the same fans Alright, well looks like we've settled into a max temperature here 88 degrees on the highest core 81 degrees on the lowest core running prime 95 eight instances of small FFT and Thank you for checking out my video of the NH D 14 versus the Corsair h70 Don't forget to subscribe to Linus tech tips from our unboxings reviews and other computer videos Yeah, that's pretty much it don't forget to subscribe