VST Results strange.. but good

[sublidieminal]

Well I run vst alot just because I love my rig lol and today I noticed something different.

Before I continue here are my specs:
3.4 ghz p4 with ht and 512 kb L2 cache
1024 mb pc3200
Ati X800 Pro

Moving on, I tested it with following settings first:
1024 x 768
6x AA
16x AF
Everything Else High
Water set to reflect world.
Final Score: 92.56

Second Test
Everything the same but AF reduced to 8x
Final Score: 87.13

can anyone clarify why it dropped?

 

[Asus]

What driver version do you use? Did you have A.I. on or off?

 

[sublidieminal]

4.10, A.I. high.