They claim 25x but the numbers are old so I'm not sure if I believe them now that a bunch of new functionality has been added. Either way, if it's anywhere within that ballpark it's still a huge achievement.
This heavily depends on your workstation. Biome scales very well. With 16 threads on a i7-120P, I got the following figures:
Webpack repository:
Biome ran
2.19 ± 0.11 times faster than dprint
4.18 ± 0.14 times faster than Biome (1 thread)
32.12 ± 1.18 times faster than Prettier
32.45 ± 2.56 times faster than Parallel-Prettier
I am not sure why Parallel-Prettier is slower than Prettier for the webpack repository.
Prettier repository:
Biome ran
1.89 ± 0.21 times faster than dprint
3.47 ± 0.34 times faster than Biome (1 thread)
36.70 ± 3.41 times faster than Parallel-Prettier
46.66 ± 4.32 times faster than Prettier
