Actually his laptop beat Colossus:

Joachim Schueth, from Bonn, won the National Museum of Computing’s Cipher Challenge on November 15 last year.
He received his prize, which includes a valve from the working Colossus at the museum, in Block H at Bletchley Park in Buckinghamshire, the wartime home of Colossus.
Using his laptop, Mr Schueth unravelled a code transmitted from the Heinz Nixdorf Museum in Paderborn, Germany, from a Lorenz SZ42 Cipher machine, used by the German High Command to relay secret messages during the war.

[…]
While the bus-sized Colossus whirred, clicked and clunked for three hours and 15 minutes before successfully unravelling the Lorenz code, Mr Schueth, using a program he wrote specifically for the Cipher Challenge, completed the task in just 46 seconds.
[…]
“My laptop digested ciphertext at a speed of 1.2 million characters per second – 240 times faster than Colossus. If you scale the CPU frequency by that factor, you get an equivalent clock of 5.8 MHz for Colossus. That is a remarkable speed for a computer built in 1944. Even 40 years later many computers did not reach that speed. So the Cipher Challenge would have been very much closer had it taken place 20 years ago.”