Nvidia made very nice leap in OpenGL again, but its DX performance increase wasn't as dramatic(especially in DX9).
PS. halo is one poorly coded port, i still don't get it why many sites/mags use it as DX9 benchmark......
Asus A7N8X Deluxe, Xp 2500+(3200+), 512MB RAM, HIS Radeon 9500Pro