ive got the same cpu with ati 4870 and only 4gb ram, everything max including aa and resolution, but sometimes with full grid i have only about 30-40fps...when cars spread around the track and i can see only few its okay to reach 60 (im playing with vsync), do you experience something similiar?
How is posible with some monster pc someon barely have 30 fps with 32 car's ahead
I have 24 fps with 32 car ahead and i have a old Pentiun 4 3.2 ht, 1.5gb ram ddr1 and a old radeon 9550 , running at 1024*768 with 4aa 16af all sliders to max
That's probably it. As Whiskey pointed out, modern 24" displays can do over 1680x1050 and applying 8x supersampled AA to that is a completely different story. There is also the LOD and multiplayer speedup, which effectively stops calculating physics and graphics for all cars that are further than a specified distance. I had a 3.5 P4E a while back and it was able to run LFS quite fine, it struggled a bit only at the start of the races when there were 20+ cars in the surrounding. And the last but not least, LFS is not multithreaded so it cannot take advantage of today's multicore CPUs, which makes the difference between a highly clocked P4 and say Core2 Duo somewhat lower...
I'be tryed the multiplayer speed up, 1 race with and other without, no change at all, have the same 24fps with full grid ahead, and then 50-60 solid fps through all the race
P4 is quite bad with LFS. Even AMD K8 on lower frequency in LFS was faster .
Its time to upgrade if you want more FPS with many cars and it bothers you a lot.
I'be updated my video card from a 9550 to a HD 2600 pro, now i have more fps at the start of the race, with the 9550 was having 24-30 fps with 32 cars, now i have 40 to 60 fps, with 4xAA and 16AF running at 1024*768 with all the slider to the max, also with full textures and full skins, with some HD packs from lince
I have some 15 fps slowdown when some cars start to hit masive tires or objects on the track
Like the objects on Aston 3 in the first long corner in cargame.nl
But nothing less, i'm very pleased how lfs runs on my pc and the quality i have in general
The system requirements of lfs from my exp are , P4 2.4 - 512mb ram - Geforce 6200 or Ati 9500+
To have a decent fps with "Good" visual
.