Memory matters, low-load tests
Run with the same memory as on A10-5800K - DDR3-1,600, 9-9-9-24-1T - there's no surprise to see near-identical numbers in the bandwidth and latency tests.
Remember how we said that the two K-designated chips' CPU sub-sections are almost the same? There's only a few per cent difference in the single-threaded PiFast numbers.
And having hardware-accelerated AES functionality is certainly a boon in the TrueCrypt test.