Graphics question 7600 gs

[desmosedici800]

hi i wonder why... i have so low framerate even after i change resolution to 800x600 hmm i have about 60 fps at 1280x1024 ( about 20-23 fps with 10-12 cars on grid) but it makes no difference if i change resolution still max 60 fps and no.. vert sinc is off hmm maybe it max of ma hardware capabilities? but stll.. framerate should increase when i lower resolution to 800x600 it looks like something is limiting my fps (disabled in options)

nvidia 7600 gs (512 MB) , pentium d 2.8 (dual core but lfs uses only 1 i guess?) 1.5 GB RAM (more than enough)

[Fuel Filter]

hi i wonder why... i have so low framerate even after i change resolution to 800x600 hmm i have about 60 fps at 1280x1024 ( about 20-23 fps with 10-12 cars on grid) but it makes no difference if i change resolution still max 60 fps and no.. vert sinc is off hmm maybe it max of ma hardware capabilities? but stll.. framerate should increase when i lower resolution to 800x600 it looks like something is limiting my fps (disabled in options)

nvidia 7600 gs (512 MB) , pentium d 2.8 (dual core but lfs uses only 1 i guess?) 1.5 GB RAM (more than enough)

When you can change the resolution and gain or loose no FPS, the CPU bottlenecking is the usual case. LFS is mostly CPU dependent and poses no challenge to most recent generations of videocards - thats not the case for the CPU however probably because of the physics engine or what have you. If you can overclock the CPU, it may help. Turning off antialaising may help also if you have it on.

[Knight_Atack]

Something is probably wrong in the settings, or something is running in the background I would expect. I have a 7600GS 256mb (AGP8x), a slower CPU (Single core AMD Athlon64 3000+), and the same amount of memory, and I run fine here. I don't have enough CPU and FPS for recording video in LFS, but in game I can run some 100fps usual, with 1280x1024.

Wait for an answer of those compu-geniuses, they'll better answer you. Maybe if posted in the hardware section might have been more appropriate. :)

[legoflamb]

I agree, that there must be another program sucking up your CPU.
I have a 7900 but my CPU is a little lacking and out-dated so I usually have around 90-115 FPS, 40 FPS with full AI field.

[Kristjan.J]

You maybe have set max FPS to 60? In-game options to do it somewhere... :scratchch

[desmosedici800]

thanks for reply:)

you see... frame limiting is off, veretical sync is off, task manager shows 1-3% load before i start a game so no background program using my computing power
funny thing... changing antyaliasing in game 2x,3x,4x and or texture filtering 1x-16x doesn't affect framerate at all (well maybe 2-3ftp att full grid but thats nothing)
Athlon64 3000+ one core is faster than i one core of my pentium d 2.8 and game can't use 2 cores but still... my frame rate is lower than it should be i think.. i dont mind 40-60 fps during game its ok but 20-23 fps on a start makes it hard to be smooth and efficient in the first 30 sec of race

[southamptonfc]

Your framerates sound about right to me.
I'm afraid your system is quite anti-lfs! Your pentium cpu is the biggest limiting factor in your system. I used to have one (3.4Extreme) and they get crushed by the same speed or much slower clocked Athlons. You are right, lfs doesn't use dual core. This is also the reason that changing the AA and AF makes no difference - it's because your cpu is the bottleneck.

Unfortunately, Nvidia cards are also slower in lfs than their equivalant Ati cards, have a look here: http://lfsbench.iron.eu.org/?c=completemax

I am second in the list, my friend is first :) Even though my cpu is running a lot faster than his and I have a much 'faster' graphics card, the older generation ati card is still faster.

I would recommend turning the user and mirror details down, this is about the only way you can improve fps in lfs.

Check if you have vsync enabled in hardware by right clicking on the desktop and select nvida control panel->3D Settings. If you don't have that then right-click, select properties->advanced->Nvidia something or other :)

[desmosedici800]

yeah.. like i said before it's all off.. i must be my cpu

another general question... what drivers should i use? official? any difference using moded drivers?

[Hoshimodo]

yeah.. like i said before it's all off.. i must be my cpu

another general question... what drivers should i use? official? any difference using moded drivers?

I've tried several drivers for my 7600gt and I would suggest to use the 94.24 whql build. In terms of performance and stability it's the best driver I've found so far.

[southamptonfc]

Modded drivers can give better performance but normally only slight and at the expense of image quality.

In your case it's not likely to make any difference though as you are cpu bound at 1280x1024.

[desmosedici800]

"I've tried several drivers for my 7600gt and I would suggest to use the 94.24 whql build. In terms of performance and stability it's the best driver I've found so far."

thanks i'll try it:)

"In your case it's not likely to make any difference though as you are cpu bound at 1280x1024."

i know that my cpu is limiting it but i was thinking general:)

[legoflamb]

what is your FSB on your motherboard? The FSB is the real speed of the "processor" in computers. The bus is what transfers the data, and if the FSB is slow, it will limit the CPU if it is lower than the CPU's bus.

[Dygear]

You maybe have set max FPS to 60? In-game options to do it somewhere... :scratchch

V-Sync, turn it off.
Not an In Game option, has to be done from your graphics card control panel.

[southamptonfc]

yes, check the vsync and if it's possible, why not overclock - you can get those cpus to 3.3ghz easy ;)

[Dygear]

Changing Anti-aliasing in game 2x,3x,4x and or texture filtering 1x-16x doesn't affect framerate at all (well maybe 2-3ftp att full grid but thats nothing)

Then I would say it's not working. Make sure your forcing AA in game and in your cards control panel. Keep in mind, the game can only ask for AA to be applied to the scene, the card's control panel is the authority on weather or not AA & AF actuality is applied to the scene.

Questions, what is the max your monitor supports for resolution, what is the max your monitor supports for refresh rate.

Test, open your graphic cards control panel and change AA and AF to their max settings, change your monitors resolution and refresh rate to their maximum allowed (but also allowing the monitor to function) and resolution is more important then refresh rate. Then see if that has any impact on the frame rate of your game. If it does not, then I would simply say that the setting are not being applied at all, could be a defense mechanism from the card so that it does not crash your system (graphic card drivers can cause blue screens).

Update your drivers! (http://www.nvidia.com/Download/index.aspx?lang=en-us)

[The Moose]

Then I would say it's not working.

Nope.
It makes next to no difference at all (2-5fps)on mine between 2xaa 2xaf and 8xaa 16xaf, (via nHancer, not in game) and it is most definitely working.:nod:

CPU is absolutely the limiting factor for FPS in this sim.

[desmosedici800]

"what is your FSB on your motherboard? The FSB is the real speed of the "processor" in computers. The bus is what transfers the data, and if the FSB is slow, it will limit the CPU if it is lower than the CPU's bus."

well... not exactly.. fsb is important when it comes to data delivery to and memory,cpu,gpu but it doesn't directly affect computing power of cpu

i'll say it again becase lot ppl missed it:) vertical sync IS off, also i played with setting of graphic card control panel and settings in a game... whatever i set i doesn't change framerate by more than few fps

southamptonfc (http://www.lfsforum.net/member.php?u=466) - :) i overclocked it a little bit (to 3.0Ghz) i can't push it more because of my cooling system (temp and noise (motogp bike is quiet comparing to my pc)) it helps a little bit but of course nothing significant

and finaly .. AA and AF is not limiting factor here, alsa monitor properties don't affect performance at all if vert sinc is off (well not quite but close - lets simplify)

conclusion:
cpu is limiting factor because of physics computation: 1 car (70fps) 12 cars (20-23fps) physics for opponents car isn't directly computed on my pc only in liitle part thats why it's not linear progress of cpu load (i mean 1 car-70fps 2 cars-35ftp 4 cars-17.5fps = false) i supose only basic movement vectors are calculated on my pc (and few other things) - overclocking is direct proof of that
i don't think gpu is limiting my fps because no matter if no cars are rendered on my screen or 12 in front of me there is no difference in fps (1-3fps)


thanks:)