Performance drop with more than 1 vehicle

Not sure if this is common sense or just me, but I have a beefy computer, but with only the player car, I still needed to balance the graphics. If I spawn 1 or 2 more cars, my performance drops.

 

Whats the specs of your beefy machine?

 

OS: Microsoft Windows 10 Home Insider (x64)
CPU: AMD FX-4300 Quad-Core Processor
GPU: AMD Radeon R9 200 / HD 7900 Series (Engineering Sample - WDDM v2.0)
RAM: 8GB
HDD: 1TB

 

Its your CPU.
AMD isnt really too good with physics simulation.
The rest is good though I would say.

Try disabling collisions, and balancing your graphics out until you get a playable framerate.

If you look, all the people who are complaining about lag are those with AMD processors or low end Intel processors. I am a fellow AMD user, and I can run most of the time at a framerate between 40 and 60 FPS with collisions off and normal graphics with no postFX.

 

not that beefy...

 

Its just fine that he says that. Normally that processor would work for quite a few other games.
Its really down to games that are really dependent on single core performance, like BeamNG.drive.

 

http://puu.sh/m6QJf/e2ce83c477.png
It also conforms to the high-end requirements, so it should be giving high-end output. I'll try scaling the resolution for now.

EDIT: also turned down shadows to low, seems to be running well.

 

That wiki page is bullshit.
If it were true you would not see AMD on anything but moderate requirements.

High end requirements means nothing. You can have all the GHz you want or all the cores you want, but in the end its the design and the efficiency that matter. And AMD really isn't efficient with processing things on a single core.
IF BeamNG used multiple cores, it would be less of a load on the core itself, allowing the simulation to be processed faster.
But since it doesn't, a good choice for a CPU for beamNG would be one with a good single core performance.
Edit;
Not trying to really depress you, but to say it better, really your rig isn't going to be capable of everything beam has to offer.
I feel your pain man, Over here with an A8 5500 apu and a r9 270x, The game doesn't run that well. Cant run anything other than Gridmap, smallgrid, and a couple other mod maps that have no vegetation on them at 60 FPS. the rest I have to cut my FPS limiter to 35 to stabilize my framerate.

 

You're fine. I've been told AMD was not as good as other processors, but up until BeamNG It's been working just fine. I can still play the game just like you, but I also have to scale graphics. Thanks for the support.

 

essentially beamng runs each vehicle in its own thread. For the purposes of simplification (fuck am I explaining multitasking on a single core from my phone today) we shall assume that this turns into 1 vehicle per core. Beamng uses a floating point unit. Amd only has 1 floating point unit per 2 cores. In your quad core, you only have 2, 2 vehicles and you are hitting your limit already. Intel has 1 per core, 4 vehicles and you're hitting the limit.
there is alot more going on, plus those 4 Intel cores at the same clock speed end up being faster anyway. But ultimately AMD is poorly suited for beamng.