Sticking with the Juniper core that we saw in the Radeon HD 5770, today's review focuses on its little brother --the HD 5750. Just as the 5770 was effectively half the 5870, the 5750 is half the 5850 utilising the RV840 core manufactured with a 40nm process. Essentially the ATI Radeon HD 5770 & HD 5750 models fill the mainstream segment of the DirectX 11 GPU market. Clearly nVidia's launch of the GTX470 and GTX480 cards is targeted at the high-end user and so ATI still rules the roost in terms of the mainstream and lower-end areas of the marketplace.

So how will the 5750 compare to the 5770? We've got two versions to put through their paces both courtesy of Sapphire: the reference version of the card and a special overclocked Vapor-X model. Let's delve a little deeper...