Apparently English sentences are a lot shorter than French ones. Syncing probably is a blast for you guys.
No he just make a very short version, if I translate word by word : I bought a r9 290x on ebay, one month ago, she consume a lot and overheat but not bad for the price ! (But I can't put full graphics on beamng :/)
So once again to OP. Every 4xx0 series intel CPU will fit to your motherboard (socket 1150), to every motherboard you can put every GPU, because they all use PCI-E now. Motherboard can't be "too slow", you don't have to upgrade it. Still when upgrading GPU you have to look if your PSU is good enough for it. And you need P1.20 BIOS version for haswell-refresh or Devil's canyon (code names for newer haswell CPUs like 4460, 4690K... ), your pentium works on earlier BIOS versions, so upgrading it is probably required before you put new CPU in to socket. Look for instructions how to find out your BIOS version on Asrock motherboards, if it's older than P1.20 then you have to find out how to update it.
The G-series pentium 3ghz will run two cars just fine, 40~50fps all the time in worst-case scenario. 50~55fps all other times. If you want a better cpu, find out what cpu is pin-compatible, and not going to overheat your PC. try to get a cooler for it, if you try to use your little pentium's cooler on a bigger (i5 or something) cpu it might not be good enough. there is more aluminum/copper on larger heatsinks, there is cheap ones on newegg or amazon also It's worth paying more for a higher GHZ cpu if you can afford it - more GHZ speed more FPS, more cores = more cars at once
You obviously don't know half of what you are talking about. The stock heatsink is fine for most workloads on all consumer CPUs without overclocking. And if you need something better, get the Hyper 212 Evo. It cools well above its price point.
4790 + stock heat sink = fail, 4690 + stock heat sink = passable. Stock cooler is LOUD Replaced a lot of dead boards due to failed socket/ vrm popping, mostly on pre-builts/major brand. 22 years I've been working with PC hardware, and you say I do not know what I am talking about. That's fine. I don't need any of this monkey business.