Unfortunately, we cannot say as much praise about the new Scythe Ninja 3 cooler as about the original Ninja released back in 2005. We wouldn’t call the Ninja 3 a failure, though. It is effective at medium and high fan speeds and very effective at low speeds. It is just not the best as the Ninja used to be, which is actually our only gripe about it. The Ninja 3 is a high-quality product, supports all modern platforms and has a reliable fastening mechanism. Its fan speed can be set up flexibly. The downside of the Ninja 3 is that its kit includes only one pair of wire fasteners for a fan. It is also a rather large and heavy cooler. Such minor drawbacks might have been put up with if the Ninja 3 were the best in performance. Alas, the legend has not returned to us today.
As for the other two products from Scythe, the Rasetsu doesn’t show high performance and depends on whether the side panel of the system case has vent holes or not. On the other hand, it is light and rather compact. It is easy to install on multiple platforms and costs less than the other Scythe coolers in this test session (but it is not really cheap). The Mugen 2 revision B is one of the best air coolers available today. Its performance under the extreme conditions of summer heat is comparable to the recently revised ThermoLab Baram (the latter is smaller, lighter and simpler to install, though). Now you don’t have to remove the CPU socket frame to install the Mugen 2 on your mainboard, which had deterred many potential buyers from the earlier version of the Mugen 2. The Mugen 2 revision B still requires some dexterity from the user, though.