I have released a new version of UMark recently, which features dozens of improvements. UMark supports UT2003 and UT2004, both Demo and Retail versions. It supports botmatch, flyby, and timedemo benchmarking.
A complete list of changes can be viewed here:
http://unrealmark.net/changelog.php
You may download the free software here:
http://unrealmark.net
Results can be submitted to the new UMark Online database. Here are some of my own results:
http://www.unrealmark.net/benchmarks...Flyby&ver=3323
http://www.unrealmark.net/compare.ph...&m6=105&m7=106