I've two desktop PCs and looking to use one for some basic gaming... Both have 4GB RAM though I can increase it to 8GB if necessary. I'm not looking to put a dedicated GPU in as games I'll be playing will be a few years old. One has an i5-4460 processor and the other has an A8-5500 processor.
I know the i5 is a much better chip, but I believe the integrated graphics is better on the A8. I'm no expert however so interested to see what more knowledgable people recommend.