Sapphire Radeon HD 4770 512MB and CrossFire performance review

After accompanying the launch of AMD's new mainstream RV740 GPU, and the Radeon HD 4770 part that it powers, with a look at HIS' offering based around said SKU, today we take a look at Sapphire's Radeon HD 4770 board, which features the exact same cooler and clock speeds as the aforementioned card.

Of course, basically repeating the exact same review all over again would be both dull and pointless, so for this article we've spiced things up a little by combining the power of two Radeon HD 4770 boards in a CrossFire multi-GPU configuration.  Interestingly, in cost terms this brings a pair of Radeon HD 4770 parts into almost exactly the same price bracket as (if not cheaper than) a single Radeon HD 4890 1GB, which makes for a potentially interesting match-up in its own right.

So which is better - Two Radeon HD 4770 512MB boards in CrossFire, or a single Radeon HD 4890 1GB?  There's only one way to find out...