We all know that Quake 4 is built on the Doom 3 engine, but what do the performance numbers look like in comparison? Has id been able to tweak some extra performance out of their engine in its second iteration? Phoronix puts up the numbers side-by-side in an attempt to answer the question.

"Now that Quake 4 has been available here in the United States for a couple of days along with the Linux client and server binaries, we've gathered some results comparing the frame-rate performance of Quake 4 against Doom 3, as Quake 4 is using a tweaked version of the Doom 3 engine."