However, when increasing the DDR3 memory frequency to 1866MHz on the A8-3850 platform the memory throughput improved significantly. Read bandwidth increased by 23% while write bandwidth saw a massive 55% improvement. The AMD A8-3850 might have twice as much L2 cache as the Athlon II X4 640, but it’s no faster. In fact, it was the slowest processor tested when running the AIDA64 L2 Cache performance test – regardless of RAM speeds.