In most games you will be gpu limited, so the igp vs the 7750 is the determining factor. Anand doesnt have a bench for the igp of the A10, but it is slightly slower than a GT 640.
Comparing the HD7750 to the GT 640, the 7750 is overall about 50% faster. So I would expect the i3 plus 7750 to also be about 50% faster in gaming than the A10.
What does 50% faster in gaming really mean? It means the difference between playing on medium vs low settings, or playing high vs medium. That's what it means. The A10 is a decent gaming chip and the CPU is as fast as an i3 in most benches.
