The no anti-aliasing is always a PITA isn't it? Hard to make out masts without AA
Using the ATI Catalyst CP:
Anti-Aliasing: 24x Edge Detect. This is a frame rate killer, make sure your PC can handle it. With 8x Box, I get 120fps in port, 300-400fps at sea (including convoys). With 24x Edge Detect, I get 50-60fps in port, 200-300fps at sea (including convoys). As you can see, it only really matters in a port with lots of buildings, aircraft, and ships around.
Adaptive Anti-Aliasing: For transparent textures. I don't notice much of any difference between performance and quality in SH3 for this setting, then again, is there anything transparent in SH3?
Anisotropic Filtering: 16x
Catalyst A.I.: Advanced
Mipmap Detail Level: High Quality
As stated above, the only major framerate difference I saw was when changing the anti-aliasing settings. Everything looks significantly better with the 24x Edge Detect filter than with the 8x Box filter, and my PC could handle it even in port so I went with it.
---
PC Specs:
CPU: AMD Phenom II X4 955 Black Edition (3.2GHz) Socket AM3
MoBo: ASUS M4A79T Deluxe AMD 790FX chipset
RAM: OCZ SpecOps 4GB DDR3 1600MHz
GPU: XFX ATI Radeon HD 4890 Xtreme, 1GB 256-bit PCI-E 2.0 DirectX 10.1, DDR5 Core Clock: 875MHz, Memory Clock: 3.9GHz