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...