How long does the EFF DES Cracker take to crack DES?
It was designed to crack DES in an average of 4.5 days. However, fabrication defects in the first round of chips make it up to three times as slow on some problems. These problems are unique to the physical chips we used and would not affect future machines. Faster machines can easily be built by spending more money, with roughly linear speedups (twice the money = twice the speed).