Sun Microsystems ( JAVA) and Fujitsu Ltd. are expected to introduce a new line of server systems that exploit a multibrained Sun chip to deliver a big jump in performance, the Wall Street Journal reports. The new machines can use four of the Sun UltraSparc T2 chips, which each have the core circuitry of eight microprocessors. Sun said each of the engines, in turn, can simultaneously carry out as many as eight sets of computing instructions known as threads, the Journal reports Monday. Each chip has the capability of simultaneously handling 64 threads -- and a four-chip server can carry out 256 threads at once, said John Fowler, an executive vice president in charge of Sun's systems business, the newspaper reports. The new systems' price starts at $45,000.