M1 Ultra does double the performance of the i5-12900k, a 16-core Intel chip, and comparable graphics performance to the RTX 3090 with 75% less energy. 3090's are around $2,500 right now.
Dedicated hardware for video encoding and decoding are an important feature on Apple chips, as well as optimizations in macOS and iOS which enhance threading and power usage. The M1 Ultra is able to play 18 different 8K streams simultaneously, and it renders video 5x faster than leading workstation graphics.
Apple silicon is icy fast and nearly silent even when rendering or compiling.