Don't go for the G505, you'll be tearing your hair out more often than actually enjoying anything with decent frame rates. The GPU performance on the E1-1200 is pretty much cut in half because there's only a single memory controller on-board. If you were asking this same question a few weeks ago, Acer had a stupidly good value Aspire V5 with a quad-core A6 series APU, which would have done most older games justice.
You can have a look at this:
Lenovo Flex 14 (AMD A6-6310 quad) @ R3703
Considering what you're getting in that whole package, it's a sweet deal, easily kicking most Intel offerings at the same price range in the teeth. Much better than that stupid little Dell with an E1 APU for R4k over at Takealot. If I find anything more, I'll post it here.
Also, don't expect anything other than 720p, low everything for most games. Yes, it has a iGPU based on the GCN architecture and it can run Mantle, but it's not going to boost performance all that much.