12% on i7 means one core out of 8 is fully booked. Windows never has more than 100% CPU, unlike mac and linux, which have 100% for each core and then tell you "

12% on i7 means one core out of 8 is fully booked. Windows never has more than 100% CPU, unlike mac and linux, which have 100% for each core and then tell you "Xcode uses 390% of CPU". :)