Could this be related to the MB as well? AMD now provide a close chip relationship between MB chipsets, CPU/GPU/APU much the same way that Intel have done over the years.
In a lot of the benchmarks I have seen more recent, more and more games are taking advantage of Multi-Cored CPU's. Intel has always been strongest in the single core arena, but AMD in the domestic markets have grown its array of Multi-Cored CPU/GPU/APU's.
I have seen some very impressive benchmarks utilizing Mantle API's, which make the AMD chipset shine, and not just because Mantle is hardwired into the CPU, but it is the first real contender to shake up the API situation in the first place. This is not a new war, for those that remember the SSE etc hardwired functionality some many moons ago.
Personally, I don't root for any company, but view 1) What do I need to do 2) Who makes the right combination of CPU/GPU and Chipsets to fulfill that goal 3) Are there compromises I can suffer to fit a budget 4) Should I expand/Upgrade one component, what is the knock on effect.
Like anything that requires more than one question answered, it needs project managing. In project managing you have only 3 criteria... Cost, Time, Quality, from that, you can have 2 out of three at the expense of the third. I.E if you want high quality in a short timespan, you have to pay for it. Your own circumstances will dictate what's important.
Standing back far enough, consider that AMD has won the contract to supply the 3 leading consoles with CPU/GPU/APU and chipsets from some of the biggest players in the gaming market. Intel is still the main leader in the CPU market, but AMD is still biting their heels and getting much closer than Intel would perhaps like. Either way, their war, gives us more power for less money, if it didn't exist, we would still all be using 286 chips.
I considered many combinations before going down the route I did, making my biggest expense a nice R9 280x 3GB DDR5 by MSI
