AMD's performance advantage under Expendable has always been much less than what Quake has given us simply because of the design of the game. This just goes to show you that the Athlon isn't the "20% faster than Intel" killer that some benchmarks will make it out to be. It is a fast CPU, but at equivalent clock speeds, this is one test where Intel could compete quite nicely.
The advantage is restored once again in the Half Life benchmark. What good is a benchmark of a game using a modified Quake 2 engine? Although Quake 3 is stealing the lime light games like Soldier of Fortune have yet to come out and are still based on heavily modified versions of the Quake 2 engine.