The market currently is filled with two types of CPU cooling solutions, the extremely old and popular CPU Air Coolers of all types aimed toward the masses and the somewhat more advanced and expensive AIO and custom Liquid CPU Coolers aimed primarily towards professionals, enthusiasts and overclockers (custom water cooler kits however are still considered niche mainly because of their price and installation). Through the years many air and liquid coolers have reached our test bench and if we've learned something is that nowadays air coolers don't seem to be advancing as much as liquid ones. Luckily there are some CPU Air Coolers out there capable of going head to head with many AIO Liquid Coolers and so since there's no real headroom for serious improvement the next best thing is for manufacturers to improve on what they already have. Thermalright has been polishing the Silver Arrow model for quite some time now and according to them the brand new Silver Arrow IB-E model which we have here today is a clear improvement over the previous SB-E model.