We don't have an apples-to-apples comparison for similar hardware and queries at this point but here are the links to performance figures for pg_graphql and grahile. Hasura does not publish throughput number afaik

pg_graphql: https://supabase.github.io/pg_graphql/performance/

graphile: https://www.graphile.org/postgraphile/performance/

We'll certainly be keeping an eye on performance as it gets closer to GA