Some more info
According to Mario Rivas, executive vice president of AMD's computing products group, the company's Barcelona will yield 42 percent better "floating-point" performance than Intel's Xeon X5355 Clovertown in SPEC_fp benchmark tests.
For SPEC_int, which measures integer-processing tasks, Barcelona will have a leg up on Clovertown again with a performance advantage of more than 10 percent, Rivas said.]According to Mario Rivas, executive vice president of AMD's computing products group, the company's Barcelona will yield 42 percent better "floating-point" performance than Intel's Xeon X5355 Clovertown in SPEC_fp benchmark tests.
For SPEC_int, which measures integer-processing tasks, Barcelona will have a leg up on Clovertown again with a performance advantage of more than 10 percent, Rivas said.
http://www.extremetech.com/article2/0,1697,2099613,00.asp