...Notably, the combination of the Solaris 10 OS and Sun(TM) Studio 11 software produced three World Records on SPEC CPU 2000 benchmark:
-- The Sun Fire V40z server has the best result for all 4-CPU x86 systems
on SPECfp_rate2000 and effectively doubles the performance of the Dell
PowerEdge 6850, equipped with 4 Intel Xeon processors(1).
-- The Sun Fire X4100 and Sun Fire X4200 servers beat all other 2-CPU x86
servers on SPECfp_rate2000, easily trumping the performance of the HP
ProLiant DL360 G4p, by 72%(2).
-- The Sun Fire X2100 server is the fastest single socket x86 system on
SPECfp2000, faster than the IBM eServer xSeries 306m server, that uses
Intel Pentium CPU, by over 15%(3).