The PCMark Vantage benchmark shows consistent results: the unencrypted partition is at the top of the charts, as expected. The only exception is the Memories suite, where the hardware accelerated system is at the top. The standard method of AES encryption, which doesn't get accelerated in hardware, consistently comes in last place. At least the performance drop is cut in half when using the AES-NI instruction exposed by the tested Intel CPU.
Benchmark Results: PCMark Vantage
By Manuel Masiero,