While now a version old, Phoronix tested (on Linux) the encoding performance of SVT-AV1 v0.5 on the new 3rd gen AMD Ryzen 8core (3700X) and 12core (3900X) chips compared to existing Intel CPUs (primarily the 8core 9900K and 16core 7960X):
https://www.phoronix.com/scan.php?pa...0x-linux&num=4
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____HTPC____ | __Desktop PC__
2.93GHz Xeon x3470 (4c/8t Nehalem) | 4.5GHz 1.24v dual-core Haswell G3258
Radeon HD5870 | Intel iGPU
2x2GB+2x1GB DDR3-1333 | 4x4GB DDR3-1600
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