Media Rendering and Encoding
Single-threaded rendering in Cinebench R15 tracks with what we'd expect, with the 2950X and 2990WX showing similar performance to the 2700X.
Cinebench R15's multi-threaded rendering test is the first place where we see the definite advantage of the Threadripper 2990WX. With an over 58% increase in score over the highest-end Intel part, the i9-7980XE.
In a more impressive feat, the Threadripper 2950X is within 5% of the performance of the i9-7980XE, despite a 2-core (4-thread) disadvantage.
In Blender, the 2990WX remains the fastest CPU we've ever tested. However, we start to see diminishing returns on core count in the Gooseberry test, with the 2990WX providing only a 23% lead over the i9-7980XE, as opposed to the 35% performance advantage we saw in the BMW workload.
The 2950X has a strong showing in Blender as well, remaining extremely competitive with the i9-7980XE, and winning in the BMW workload.
POV-Ray's all CPU test gives a 57% advantage to the 2990WX over the highest-end Intel part, while the 2950X sits in-between the 16 and 18-core Skylake-X options.
Handbrake encoding is tested with a 4K 100mbps source file, and is transcoded to 1080p with a constant quality of 10mbps in a single pass encode. The encoder used is the X264 encoder bundled with Handbrake.
H264 transcoding from 4K to 1080p starts to show a plateau in Handbrake performance scaling. Above 16 cores, the results begin to level out. However, the advantage goes to AMD here with the 2950X taking 8% less time to finish the video encode than the 7980XE.
The Threadripper 2990WX sees a performance regression, likely due to conflicts with the Windows scheduler, handbrake, and massive thread counts.
X264 Benchmark 5.0.1
The 2950X takes the cake on in X264 benchmark, with nearly identical Pass 2 performance to the Intel Skylake-X CPUs, and an almost 20% performance advantage in Pass 1.
Audacity MP3 Encode
MP3 encoding with LAME in Audacity shows little performance scaling, with the single-threaded performance advantages of the 8700K placing it in the fastest position, while all the other CPUs take a similar amount of time to finish the audio encode.