Hello, from benchmarking on my r/o in memory database, i can tell that 9.1 on x5650 is faster than 9.2 on e2440. I do not have x5690, but i have not so loaded e2660. If you can give me a dump and some queries, i can bench them. Nevertheless x5690 seems more efficient on single threaded workload than 2660, unless you have many clients. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance