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OP has tested the 4600G APU. Theoretically, the chip can do 710 FP32 GFlops on CPU, and 1702 GFlops on the integrated GPU. Another thing, it’s hard to write CP
by Const-me 3y ago
OP has tested the 4600G APU. Theoretically, the chip can do 710 FP32 GFlops on CPU, and 1702 GFlops on the integrated GPU.
Another thing, it’s hard to write CPU code which saturates memory throughput instead of stalling on memory latency. In GPUs, the issue is bypassed on architecture level. They enjoy a high degree of concurrency; GPU cores simply switch to another thread instead of waiting. The CPU cores only run 2 threads each due to hyper-threading, not enough threads to efficiently hide memory latency the way GPUs are doing.