Dual graphics dud: Intel?s Core i3-4330 overpowers AMD?s A10-7850K in budget gaming | ExtremeTechOne of the appealing features of AMDís APUs, particularly for cost-conscious buyers, has always been the ability to hook up a second low-end discrete GPU and combine the graphics performance of both the on-board APU and the discrete GPU. The last time we evaluated Dual Graphics performance, we found that an A10-5800K plus an AMD Radeon HD 6570 was a significantly faster solution compared to an Intel Core i5-3550. As AMDís on-board APUs have become more powerful and available bandwidth has edged up from DDR3-1600 to DDR3-2133, the combination of on-board GPU and discrete graphics card should be even more potent.
AMD only enables Dual Graphics on GPUs up to the R7 250, and it recommends the DDR3 variant of that card for best results. The recent Radeon price cuts, however, have put a twist on the equation. The DDR3-equipped R7 250 that AMD recommends sells for $90 at Newegg. How much of an advantage does this combination offer? Letís find out.