Intel Core i9 7980XE Linux Benchmarks: 18 Core / 36 Threads For $1999 USD
With John The Ripper's crypto workloads, the 7980XE comes out to be 6% faster than the 7960X.
TTSIOD is another workload that prefers the slightly higher clocks of the 7960X to the few more cores/threads of the 7980XE.
While the Assembly-written asmFish chess engine is said to be able to scale very well up to 128 threads.