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AMD Launches New Higher-End Kaveri APUs A10-7800 and A6-7400K
MojoKid (1002251) writes "AMD updated its family of Kaveri-based A-Series APUs for desktop systems recently, namely the A10-7800 and the A6-7400K. The A10-7800 has 12 total compute cores, 4 CPU and 8 GPU cores, with average and maximum turbo clock speeds of 3.5GHz and 3.9GHz, respectively. The A6-7400K arrives with 6 total cores (2CPU, 4 GPU) and with the same clock frequencies. ... The AMD A10-7800 APU's performance is somewhat mixed, though it is a decent performer overall. Its Steamroller-based CPU cores do not do much to make up ground versus Intel's processors, so in the more CPU-bound workloads, Intel's dual-core Core i3-4330 competes favorably to AMD's quad-cores. And in terms of IPC and single-thread performance Intel maintains a big lead. Factor graphics into the equation, however, and the tides turn completely. The GCN-based graphics engine in Kaveri is a major step-up over the previous-gen, and much more powerful than Intel's mainstream offerings. The A10-7800's power consumption characteristics are also more desirable versus the Richland-based A10-6800K."
Based on the most commented articles, I thought this was a site for politics and social issues. What the hell is this technical bullshit doing here?
CPU workloads tend to be something that so long as you've a bit of fast cache, memory speed isn't that important. That cache buffer is enough to get you extremely high performance. Not the case with GPU workloads. They are very memory bound. If you look at high end GPUs they have stupid amounts of RAM bandwidth compared to CPUs.
Well, if you try and do both on one chip, you are gonna need fast RAM if you want it to work well.