Some Fujitsu-Siemens one. Quite crap.
But shouldn't the cpu test take advantage of everything the cpu has? If u have a dual core cpu would it be fair if it only used 1 core? Then it won't give u the real performance.
and btw, there is no difference in the normal Super Pi and this Super Pi Mod. Atleast the times that I get are the same. My version of Super Pi (not the mod one) gave me 55 seconds (it rounds it up to the closest second) which is very close to the one this mod version gives me.