Results: Audio And Video Encoding
Our Apple iTunes and LAME MP3 tests are greatly affected by CPU architecture. But because the $1200 and $1600 machines both lean on Haswell-based parts, performance differences in both benchmarks are limited to clock rate variations. That means the $1600 build’s higher stock frequency jumps into an early lead, while the $1200 PC's higher overclock leapfrogs my Core i7-4770K.
The $1600 and $600 builds are both overclocked to the same 4.2 GHz. However, Paul's platform centers on AMD's Piledriver architecture, which struggles with IPC throughput; it simply cannot get as much work done at a given frequency. That manifests in single- and multi-threaded workloads as a significant performance deficit.
It’s nice to see that the extra expense of a Core i7 is useful for some things. Benefiting from a little extra shared L3 cache and Hyper-Threading technology (to improve core utilization), the $1600 PC appears a monster in both HandBrake and TotalCode Studio.