"With its greater surface area and additional heat-pipes, the AR03 should be your choice if you are working with higher thermal loads from high-end processors. It may be overkill for some setups, but that’s what the other Argon coolers are for.
I was surprised to see the AR03 go toe-to-toe with some popular all-in-one liquid coolers. Of course, this shouldn’t be that surprising – usually, the more surface area the cooler has to dissipate heat, the better it will perform. With its larger 140mm width and six 6mm direct-contact heat-pipes, the AR03 handles the heat from an overclocked FX processor without an issue."
Tom Jaskulka - Benchmark Reviews.
SilverStone AR03 cooler on Benchmark Reviews - Introduction & Conclusion.