Cooler Master Seidon 240M and 12 More Coolers: The Retest and Mega-Roundup

Spec Tables

Today we're looking at six closed loop liquid coolers from NZXT, Corsair, Swiftech, and now Cooler Master. Representing Asetek are the Kraken X40 and X60 from NZXT as their packages are ultimately more feature rich than Corsair's curiously barebones implementations of the 140mm and 280mm Asetek coolers in the H90 and H110. Corsair's H80i and H100i are both popular models, so they fill in on 120mm and 240mm duty. As the best performing 240mm cooler I've tested, owing at least partially to the copper and brass radiator, the Swiftech H220 demanded to be retested. This time we're using a retail kit as well, instead of the preproduction press model we tested with before. And finally there's Cooler Master's Seidon 240M, which we discussed earlier.

The competition is interesting. Corsair's H80i, at least for now, doesn't have to directly compete with anything on our charts except similarly priced air coolers. At 240mm, though, we have the H100i and Seidon 240M squaring off against each other, while the Swiftech H220 is more expensive owing to its higher quality radiator and vastly more powerful pump. Meanwhile the Kraken X60 is the definition of niche, though 280mm radiator mounts are becoming increasingly common in modern cases.

For the Kraken X40, I decided to try something different during testing. The X40 performed pretty poorly in our last roundup against competing 120mm kits, and I wondered if NZXT and Corsair hadn't hamstrung themselves by only including one fan. To even the odds, I swiped a fan from the X60 and attached it to the X40 in a push-pull configuration, and you'll see it made a huge difference.

Meanwhile, for air coolers, I elected to drop all of the DeepCool coolers as well as the Noctua NH-L9i. The Intel stock cooler also wasn't tested. I actually used the Noctua NH-L12 with just the 92mm fan as an upper heat bound; this is a notably more powerful solution than Intel's stock cooler, but it still had trouble keeping our overclocked i7-2700K under 100C.

The two new Noctua coolers were included, but they don't have listings on NewEgg for pricing as of this posting. They're expected to be available soon. What will be interesting will be seeing how the addition of even a low-powered exhaust fan affects this group of coolers.