Unfortunately, a single copy of HandBrake can't fully utilize 40-threads, so for the sake of this benchmark we ran three copies of the program simultaneously. The E5-2630 v4 processors completed the workload 12% faster than the older E5-2670 processors and 26% faster than the 6950X.
The Xeon E5-2630 v4 processors rendered an average of 5.36fps in our 4K test using Hybrid x265. This made the duo 18% faster than the older E5-2670 processors and 21% faster than the 6950X.
The x264 HD Benchmark results aren't particularly impressive and for whatever reason the newer Broadwell-EP Xeons are only able to match the much older Sandy Bridge-EP Xeons.