I've been working on a mod to enable lower-end systems to play FC4, and here it is in all its *beta version* glory:
http://www.reddit.com/r/farcry/comme...your_fps_beta/
https://www.reddit.com/r/farcry/comm...your_fps_beta/
This mod isn't meant to look pretty, just make the game play smoother for those who couldn't do so otherwise.
If you have a graphics card that is at, slightly above, or slightly below the minimum requirements - this is for you! If you have a Mobile GPU - this is for you!
In extremely limited testing using otherwise the same graphical settings, I've achieved these results:
* One system went from ~35 to ~55 FPS
* One system went from ~25 to ~45
* One system went from ~35 to ~45
* One system went from ~15 to ~25
Highly speculative, but cards such as NVIDIA GT 540 / GTX 450 / GT 630 / GT 740, ATI Radeon HD 5800/5700, Intel HD 4000/4500, and any similarly low-spec mobile versions (460M, 540M, 630M, etc) may run the game at playable FPS with this mod.
Note: You still need a quad core CPU, 4GB RAM, and a 64bit OS. This mod should help with slower quad-cores (slightly) and slower GPU's (more so), but that is all.
More info is on the reddit page:
http://www.reddit.com/r/farcry/comme...your_fps_beta/
Download:
http://files.farcrymod.me/ultra_perf...a1.zip.torrent