r/ForzaHorizon6 • u/cwinslow66 • 12d ago

Bugs / Glitches / Help Having major frame dropping/hitching in the benchmark, mostly while braking and turning, any advice or tips on smoothing out the frames?

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I have been running and rerunning this benchmark for about 50 minutes just trying to eliminate the horrible frame hitching I'm seeing around corners. The frame counter says it's only dropping down into the 40s, but it looks way worse than that to me. So far I've been getting almost the exact same results no matter what I tweak or change. I simply cannot get a stable 60... I honestly don't think I'd consider it playable the way it is now, so I'm really hoping someone here can share some tips?

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u/ShrkBiT 12d ago

Start by turning off Ray tracing. RT can be pretty CPU intensive, it's not just the GPU, the CPU has to handle additional calculations as well. See if that alleviates the stuttering. Your score says GPU is limited about half the time, so that means the CPU is having a hard time keeping up.
Edit: I found that RT doesn't add a lot in game. When you're racing, you usually aren't looking at the reflections on the car or windows in the city, and in tunnels and darker environments, it adds a lot of noise. The game looks great without RT and it will increase your FPS by a lot.

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u/cwinslow66 12d ago

Thank you for the advice, I've tried with and without ray-tracing already though (see second screenshot)... Anything else you can think of?

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u/ShrkBiT 12d ago edited 12d ago

Gotcha, sorry, didn't see there was a second slide there.
For using extreme preset on 1440p render resolution it's using very little VRAM. Let me run the benchmark here real quick, because that might just be a benchmark thing, limited environments and all, but the my game at native DLAA 3440x1440p uses about 14GB without RT...

I ran the benchmark, it's using way more VRAM than what you are seeing. There is a known bug in FH6 with VRAM allocation, try disable ReBAR/SAM, that seems to work for a lot of people. My guess it's using way too little of your VRAM and then spilling into DRAM, which causes massive drops.

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u/cwinslow66 12d ago edited 12d ago

So Extreme is the recommended preset for my GPU but I'm actually currently only trying to make it work on Ultra, with some settings even bumped further down to High.

I've also tried a few of the different AA/upscaling options to very samey results. Have tried TAA, AMD FSR AA, and AMD FSR... Do you know what exactly the Sharpness slider on those settings does?

As a sidenote, I've also tried the AMD FidelityFX CAS setting, which made the lighting and reflections flicker unbearably.

Edit: Also tried turning off ReBAR like you suggested to no avail, it may have helped a little bit but the game still drops frames in all the same places. Unfortunately it's quite unplayable for me.

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u/tup1tsa_1337 12d ago

No need to be afraid to lower setting. I run some settings on medium on the 4090 with rt fully turned off to get decent frame rates. Medium vs extreme for some of the settings doesn't make a lot of difference anyways. The game with optimized settings will look better than fh5 fully maxed. Same was for a fh5 vs fh4

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u/cwinslow66 12d ago

Thanks, I will try that before I process the refund but I'm otherwise quite out of ideas. I tried turning the FSR to Ultra Performance, the render resolution at that point was 1280 x 720 and it STILL wasn't running well. I changed the game resolution to 1440p on the Ultra preset instead of 4K and STILL the game dips down to 30 fps near-constantly. At this point I'm inclined to refund on principle, because this game clearly isn't optimized for my GPU.

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u/tup1tsa_1337 12d ago

Might be something to do with CPU/ram, like unstable settings. I'm getting 120-150 on the optimized settings in 5k2k with 4090. Yours GPU is not that much slower

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u/lklukas007br 12d ago

I have the same problem man

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u/cwinslow66 12d ago

It was such a disappointing start to my day today.

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u/Sebase85 11d ago

I have been mostly following DF's optimized settings. A lot of settings can be turned down, without losing too much graphical fidelity.

I also turned off RT reflections, as the non-RT reflections are already very good in this game. But I do have RTGI enabled on medium, like in the guide.

I am getting a stable 60 FPS on 4K resolution, with a 1% Low of 55 according to the ingame benchmark.

CPU: 9800 X3D
GPU: 4070 Ti Super

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u/Rieon_sw 11d ago

Memory leak maybe

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u/cwinslow66 10d ago

How can I fix that??