Amd FX8350

So i have the FX-8350 and GTX 970 and this game seems to lag fairly easily like a little crash or some vehicles or even just two or just driving fast. I have it clocked at 4.3GHZ right now and the graphics at full power. But my game settings are only set all medium about and i think i have some set to lower than that. I was wondering if this is normal. I know the CPU isn't top of line but just wondering if it's just me

 

Someone can obviously explain this better than me, but I'll give it a shot..

BeamNG uses a CPU-heavy physics engine, and one thread of your CPU equals one car.
Because of this, you need a CPU with quite high single-core/thread performance to run these heavy physics well.
AMD CPU's do not excel in single-core performance unfortunately.
Your GPU is obviously powerful enough

 

The FX-8350 is an older chip with older technology. It doesn't match up to other modern chips and unfortunately, AMD is left behind at the moment; Intel seems to be the only brand cranking out new CPUs.

Your chip is slow in terms of single core performance and BeamNG needs good Single core performance. Your GPU is just fine; your CPU is bottlenecking you.

 

Oh okay thanks guys it's kinda what I figured I'll just be waiting for the new AMD Chip and hopefully all goes well then

 

I have an fx6300 and it runs perfectly fine on the highest settings, actually really good with 3 cars, 4 is getting up there. R9 280x with it.
--- Post updated ---

 

I had R9 280X for a while, paired to my i7 3770. Couldn't apply highest settings without frame drops below 60 (hate that).

 

Pfft yeah right, perfectly fine at 20fps, or not 1080p. I had the same system before I upgraded my CPU to the 6600k from the fx6300 and it was substantially bottlenecked. I still have the 280x which is my new bottleneck, and I still can't run on highest settings at 1080p. You definition of perfectly fine seems to be slightly skewed.

 

You guys are doing something wrong. I'm still GPU bottlenecked on a damn R9 390. The game has an awful graphics engine which will bottleneck anything.

Running on low settings otherwise I am GPU limited. Still getting over 30fps with 6 cars. The FX CPUs may suck but the BeamNG physics engine is very well optimised.

 

Are you running a higher clock? aka overclock

 

That's really odd then i can get it to run smoothly with settings at med but if I go higher lags a'lot hmm i shall try again.
Ok then oddly i just maxed out the settings including postFX and it's running at over 60 fps lol I wonder what happened before.

 

You could have hit a thermal, or power-delivery limit.
Thermal means the processor or board socket got too hot, so it throttles back to save itself (and you) problems.
Hitting a power-delivery limit means, on some boards, and/or with some power supplies, they are unable to provide the current required by overclocked AMD FX8xxx series cpu's. A good motherboard will throttle the cpu back some just like a heat issue, so that it doesn't give you a BSOD when the processor is starved of power. Basically, it depends on a few things. The power supply first must be able to supply clean current to the motherboard, the cleaner the delivered power, the more efficient it will be and more useful it will be to the motherboard's voltage regulation. This brings on the next part. On a good motherboard, there are plenty of (preferrably digital) power management caps/coils/chokes, that drop the power from 12, 5, and 3.3 volts down to the voltage your cpu and motherboard needs (0.8v~1.5v depending on the cpu model). The higher quality these are, and the cooler they run, the more clean, quiet power your cpu gets. This is why it is imperative to buy a good quality motherboard and processor. Keep in mind also, that while tower-style (and water-cooling based) systems may cool the processor better than a down-draft OEM-style 'orb' cooler, your tower-style cpu-cooler won't send as much air down onto the VRM (coils/caps/chokes) area of the motherboard. This also can cause a thermal issue I mentioned above.

Another thing to note on AMD FX (and APU) cpus, these chips are weak in the physics-processing FPU* department. This means Beam would only run roughly half as well. Normally, when you run a car it occupies one core's workload. With AMD, they only have cores X 0.5 = fpu's - they only have half the FPU's that they have compared to the actual processing cores they have. So when you run 4 vehicles on an FX 8xxx series, or 3 vehicles on an FX 6xxx series, you've already used up all your available FPU-equipped cores. Running more vehicles beyond this amount may cut performance in half. Add to this the fact that intel basically doubled the FPU through-put in the i-series 4xxx chips and above (Haswell), and you've got a real lopsided performance war here, badly in favor of Intel.

FPU = floating point unit, previously known as a 387 or 487 core or chip/unit. These process math, AI, physics and the like. They're GOOD at this stuff - and hence this is what Beam uses most to run it's physics.

You may also be noting that the performance of BeamNG.Drive increase with the last few updates to physics processing over the past 2~3 months. This is confirmed, as they've optimized the physics engine a bit. Expect more of this, but it all takes time.
The devs are aware of the performance penalties that AMD users currently suffer on Beamng.drive, and are seeing what 'they can do about it'. So, long story short, it's known.

--Hope this helps! (20~22 years of working with computer hardware).

 

Well i'm going to push to about 4.8GHz per core later this week and we shall see if that cures it even more then after that going to ZEN!

 

core speed = fps (when video card isn't holding you back)
You'll still be stuck basically at 4 cars max, but that's fine.
Zen will be awesome and hopefully atleast 2x the speed of this FX series. On paper the fpu is twice as powerful, and each core has one. This should be a good thing. It could become the ultimate reasonably-priced BEAM cpu. It's coming out sometimes between DEC~2016 & March 2017. It has been delayed just slightly. IT IS SORELY NEEDED.