Games that run faster with DX10:
Gran Turismo 4
Clock Tower 3
Games that run faster with DirectX 9 PS 3.0:
Final Fantasy X
Final Fantasy X-2
Final Fantasy XII
Dragon Quest 8
Kingdom Hearts
Kingdom Hearts II
(literally anything made by Square-Enix?

)
Games that run faster with DirectX 9 PS 2.0:
Metal Gear Solid 2
Metal Gear Solid 3
Silent Hill 2
Silent Hill 3
Silent Hill 4
(literally everything made by Konami?)
I've only tried as many... maybe we should have a list.
__________________
cChip interpreter WIP - current status: Release Candidate
LRx Filter RC - current performance rating: 9/10