RTX 5090

Would it be possible to run rf2 (ultra settings) on triple 4K monitors around120 FPS ? I am used to one oled 4K panel at this framerate (3090). I only want to upgrade to triples if I can get around the same experience per monitor. I am afraid I still have to wait for the 6090, but I am curious what you guys think...

 

Ultra? Probably not, but possibly close. A few tweaks to the graphics settings will likely get you there.

For reference, I was one of the first to delve into triple 4k with a 3090 & i9-10850K, no overclocking, resulted in a nice-looking 60-75 fps with graphic tweaks, but definitely not ultra. A 5090 will be about twice as fast as the 3090 and the newer CPUs are 30%-50% faster (maybe more if the game is coded for them?). I'll be upgrading this year according to my custom of skipping a GPU generation and it looks like there have been significant CPU breakthroughs in the past year or two, so probably the whole box will be swapped out.

 

2 years goes fast these days for me.

 

Very curious as to how your experience will be as soon as you have upgraded. Never realised the importance of the CPU. Currently using an AMD RYZEN 9 5900X. What should be the "best" CPU to combine the 5090 with for rf2 ?

 

I think to answer that question, we would have finally address whether rF2 is a single core sim or did the improvements made by S397 several years ago truly allow rF2 to use multiple cores.

 

Although we are orphans, is S397 still reading us ? Or maybe Marcel Offermans can provide some hints ?

 

Previous recommendations from Marcel when he was in charge of S397, was to buy the cpu that was as high as your budget will allow on this site….https://www.cpubenchmark.net/singleThread.html

 

We are not orphans, we are together just separated in small bunches

From first beta testing he told me to buy as much ram as possible.
LMU I set fixed 32GB swap file on D:\STEAM
Before that LMU would crash all over the show.
Shows I am using more swap file then ram in sensors ( Gen 5 SSD as well )
64GB Lemans full grid highest settings is the go imho.

Which surprised me why they dropped requirements to 16GB from 32GB ( they lowered it I saw it ) but left rF2 at 32GB

 

There’s still a single physics thread (including AI), a main graphics thread, and additional threads for some graphics. Another for UI.

The main physics one is key, hence single core performance rules as above.

You can run it on 16GB of RAM, but large fields will need more virtual memory and performance will drop. That’s probably not what a lot of people expect as a requirement, but that’s what it seems to reflect.

 

I pulled the trigger on a new prebuilt PC with a 5090 (*). Should be here in a week, so will report soon-ish.

(*) Trump's tariffs discombobulated my plans for waiting until August. The US$ continues to weaken and the current tariffs will all jump around again in 90 days at Trump's whim, so I have no confidence that prices will go back down. Newegg.com dropped the post-tariff price $600 on this model recently, but I still hate paying $1k more than the rest of the world.

 

If it helps, many parts of the world aren’t paying less. We usually pay a fair bit more

 

That's a fair reminder that we've had it pretty good for a long time!

 

RESULT

Uhm, it's close. Depends on how many competitors and how much MSAA you prefer on the FSAA (I like 4x with the 4k monitors) and how good your CPU is (we're definitely still CPU bound) and whether you expect that fps during rain/night races. If a 5090ti appears, then I think we'll be there. The min/max fps reported below are from using ctrl-F in rF2. Consider them ballpark numbers rather than absolutes as every race is different.

When I used my "optimized" triple monitor settings, the ones that mostly allowed me a minimum 60 fps in daytime with 29 GT3 AI cars at Sebring with the RTX 3090, the RTX 5090 on the first lap achieves 87/137 fps (min/max) and 115/141(*) on the second lap. Switching to Ultra, the result was 83/128 on the first lap and 98/135 on the second lap.

Rainy night, of course, drops those numbers to 66/107 on the first lap and 74/103 on the second lap. At Le Mans, that became 61/113 and 69/103 (yes, the second lap had a lower peak for some reason).

Overall, the driving experience is buttery smooth with 144 Hz variable rate refresh monitors. I'm not sure how good it would be with a fixed rate monitor.

(*) One of the quirks about my 5090 is that the fps will occasionally blast past the framerate limit set in the player.json file, so my max limit is 136 to avoid going over 143 fps. When I had the framerate limit set to 141, there would be a stutter as the max fps shot up to 148 before gSync hiccuped and fps dropped to 90! I'm guessing this is the boost clock activating and rF2 just can't throttle the fps soon enough.

GPU: MSI GeForce 5090 32G GAMING TRIO OC
CPU: Intel Core Ultra 9 285K @3.7 GHz
Motherboard: MSI PRO Z890-R WIFI
RAM: 64 GB, running at 4800 MHz per Windows (yeah, a bit slow)
OS: Windows 11 Home edition
Monitors: Asus PG38UQ

 

Maybe if I get dropkicked by a donkey

 

Yes, I officially entered the crazy money realm where I could have bought a decent used car instead of this system. Don't follow my example!

 

Practical Limits with Triple 4k

Max of about 50 GT3 AI to stay above 60 fps in the dry daytime on the demanding tracks without reducing visible cars.

Full field of stockcars at Daytona has 90-100 fps.

Woochoo's 1954 Endurance at Le Grand Circuit with 65 AI never dropped below 85 fps and typically ran at more than 136 fps after the first lap and cars had spread out.

 

So basically... for the price of a used car, you too can almost hit 120 fps in a rain-soaked Le Mans with 40 AI. Progress.

 

Rfactor2 no dlss and frame generator ,no party ,i've too an rtx 5090 ,on old sims like rf2 or Ac it's not so big the improvments

 

Remember, though, that's triple 4k and the price included the 38" 144 Hz monitors. Triple 1440p is mostly pegged and triple 1080p is always pegged.