Looks like this little gem was in the Wikipedia article > The best results during testing were with the 181.mcf SPEC CPU 2000 benchmark, in which the x32 ABI v

Looks like this little gem was in the Wikipedia article > The best results during testing were with the 181.mcf SPEC CPU 2000 benchmark, in which the x32 ABI version was 40% faster than the x86-64 version.