* '''QuickPi''' by Steve Pagliarulo for Windows is faster than PiFast for runs of under 400,000,000 digits. Version 4.5 is available on Stu's Pi Page below. Like PiFast, QuickPi can also compute other irrational numbers like ''e'', √2, and √3. The software may be obtained from the Pi-Hacks Yahoo! forum, or from [http://home.istar.ca/~lyster/pi.html Stu's Pi page].
==Most digits calculated on a home computer==
The most digits calculated on a home PC is by Shigeru Kondo on his Dual Xeon X5460 @3.16Ghz with 64GB RAM using Windows 2003 server x64. Kondo calculated 206,200,000,000 digits using the 64-bit version of Pagliarulo's QuickPi v4.5. It took 1850 hours (77 days) beginning on April 3, 2008. This is the same as the record for computation of pi held in September 1999 (by [[Yasumasa Kanada]]), suggesting that home computer power is 9 years behind super computers.
[http://home.istar.ca/~lyster/pi.html Stu's Pi page] is compiling a listing of large digit runs (over 1-gig or 1,073,741,824).
Latest record for digits on a supercomputer is 1,241,100,000,000 digits as of November 2002 by [[Yasumasa Kanada]]'s lab at The University of Tokyo.
