Performance
High speed and low RAM requirements were criteria of the AES selection process. Thus AES performs well on a wide variety of hardware, from 8-bit smart cards to high-performance computers.
On a Pentium Pro, AES encryption requires 18 clock cycles / byte, equivalent to a throughput of about 11 MiB/s for a 200 MHz processor. On a Pentium M 1.7 GHz throughput is about 60 MiB/s.
On Intel i5/i7 CPUs supporting AES-NI instruction set extensions throughput is about 400MiB/s per thread.
Read more about this topic: Advanced Encryption Standard
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