Originally Posted by Opcode
The only thing missing from AMD's APU's is L3 cache. Otherwise the cores and architecture is exactly the same. My A10-6800k is pretty much a FX-4350 with the base clock set to 4.1 and the turbo set to 4.4, minus the L3 cache. With the addition of a graphics core. There's not much I cant do that's CPU bound with my machine, and that's when running a discrete HD 5870 with it (slightly faster than the HD 7850). In games that do support quad cores, my APU handles them perfectly. I see 93-99% GPU utilization in Battlefield 3 with everything stock. Steamroller is suppose to be 30% faster clock for clock, so even 7870's and 7950's wont be bottlenecked by Kaveri in games that support at least quad core. This is why they may eventually rule out the FX lineup. We may see a six core APU with Kaveri, I have my doubts but its still a possibility. If we don't there will be one eventually as AMD moves down the scale with their manufacturing process. Once they free up enough die space they will add more cores (something AMD is notorious for, with good reason). I'm personally eager to get my hands on one, and have full HSA support. When HSA applications start flooding the market, owning one of these will be worth having more than a FX. As in many workloads these APU's will beat the highest end FX in number crunching. My current A10-6800k is capable of over 600 GFLOPS all by itself, and Kaveri is slated for 1 TFLOPS. Now before people say "well I already own a GTX 660", the point is you're not limited by PCIe bandwidth. Plus you could be gaming, and crunching numbers at the same exact time using the iGPU as a co-processor as its intended. When AMD built the APU, they didn't have just gaming in mind. They seen the possibilities of having an onboard GPU to work in parallel with the CPU.
No L3 does stunt performance significantly, If AMD want to fall even more behind Intel then what they should do is remove L3 from all CPU's.
Now i'm happy to criticise AMD for a lot of silly things they did in the past Bulldozer Cough Bulldozer Cough....
but some how i doubt they are that
I welcome an APU with L3 and HSA, when that time comes there is no need for an FX chip, it would just be an APU without HSA and an iGPU, when the time comes (as you say) they are able to add L3 to APU's then i have no doubt AMD will drop what we know as today FX CPU's.
Its just not going to happen soon, is all i'm saying.