With Dual 2.0GHz PowerMacs finally trickling down to end users, one person posted PS7Bench Benchmarks from their brand-new PowerMac Dual 2.0GHz Mac with 1GB RAM (with the G5 Photoshop Plugin).
The new results have been added to the previous PS7Bench Benchmark chart which already includes previous results from the PowerMac G5 1.6GHz as well as various PC configurations.
The best results are in red. (see Chart) The PowerMac G5 Dual 2.0GHz results come out to be the fastest in 15/21 of the tests run under PS7Bench.
A normalized PS7Bench score was also calculated and listed in comparison to various other systems in this ArsTechnica thread. The normalized score gives each sub-test equal weight. (More details about calculating normalized scores here.)
The normalized score for the PowerMac G5 2.0GHz comes to 547, which gives it the highest (best) score out of all the other computers in the list, beating out a dual 3GHz Xeon (overclocked).
Dual 2.0GHz Photos: Photos of a (different) user unpacking their Dual 2.0GHz G5
Update: Xlr8yourmac posted more benchmarks from Dual 2.0GHz machines. Their benchmarks include Quake3, Unreal Tournament 2003, Return to Castle Wolfenstein, Unreal Tournament X PR3, Quicktime -> MPEG4, iMovie 3, Appleworks 6.3 Scrolling, and CineBench 2003 tests.