Forza 7: Stuttering fixed (AMD 1100T w/GTX1080)

I like many have been fighting the stuttering.

Based on what Ive read and have seen I agree that Forza 7’s main issue appears to be multi-core optimization, a problem that Forza 6 and Horizon 3 suffered from and was later fixed with a patch like 8 months later. I think we will see a similar patch later on down the road and that will likely fix a lot of the issues.

I have managed to clear most of the stuttering in the game and wanted to share the key elements I found that have helped. I realize some of my issues/findings may be related to the fact my system is old/older. (Running: AMD 1100T overclocked to ~3700mhz, Memory OC ~1800mhz))

Win 10 OS and Hardware setup: (Updated 10/26/17)
[Update 11/3/17: The Forza 7 update from Nov 3rd has included a fix that appears to balance CPU usage across all cores evenly. No more single 100% core all the time which negates the need for setting Priority to LOW. ]Start Game, tab out of game, CNTRL-ALT-DELETE go to Forza7 process under details, right click and set Priority to = LOW (This was the single biggest impact for me) __(IMPORTANT)__
Note: I updated to the new 16299.15 release of Windows 10 that supposedly helps with stuttering in some games, not sure how much this has helped [/list]
- Make sure your graphics card is in the first PCI slot closest to the processor
- Turn off Windows Defender protection (I turned all of the protections off) (IMPORTANT)
- Close ALL other windows, Internet explorers, Windows explorer, etc.
(I have an icon in the notification section for Nvidia that tells me if there are other applications/processes being processed by the graphics card.
Ensure there is nothing there except Forza 7. (IMPORTANT)
I found Logitech setpoint software showed as open by Nvidia and now keep it closed.
- Install Forza 7 on to a second drive (don’t install to the main OS drive) (IMPORTANT)
- I have found to have a lot more stuttering with game on OS drive (even with SSD OS drive) The Samsung 950/960 NVME drives on modern systems may be different however.
- Using SSD (in this case 960 pro) as the second drive where Forza 7 is installed on reduces the major stutter occurrences in certain spots in some maps.
Which confirms my belief that some of this major stuttering events in certain spots is drive read/load related.
- Also note that I have found that despite having 16gig RAM and SSD for C drive, if I eliminate the Paging file I get a lot more stutters.
Nvidia Settings:
- Max Prerendered Frames=1
- Open GL Rendering GPU=GTX1080
- Power Management=Adaptive
- Shader Cache=Off
- Vert Sync=Application controlled (Which should be default anyway)
Forza 7 game settings: Updated 10/26/17, I am running all settings at maximum/ultra/etc
Video:
- Dynamic Render Quality=Ultra
- I’m running 4k (3840x2160)
- Dynamic Optimization: Custom
- Full Screen: ON
Advanced: All settings set to maximum/ultra/etc
- Performance Target: 60fps (Vsync)
- Resolution Scale: 100%
HUD:
- Camera Motion effects=Off (This gives me an overall smoother result on my TV/setup)
For the most part the game is running great but occasionally see a stutter if FPS drops below 60fps.
I am planning on upgrading to a new i7-8700k with Samsung 960 pro nvme SSD soon but wanted to share my progress as I’m really surprised at how well the game runs on this old a CPU/Motherboard.

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“right click and set Affinity to = LOW (This was the single biggest impact for me)”

err,Affinty is for cores.

You mean Priority.

Dude i have exactly the same cpu , phenom x6 T1100 3,2ghz stock and i get bad stuttering all the time no matter the settings ( i tried from the lowest to highest and all dynamic but the stuttering is the same)
I tries to do your first step but when i go "set priority
forza process/details and press right click/Affinity i see all 6 cores with tick boxes (all are ticked default) and not Low option … So you mean over Affinity option “set priority” where there is low/normal/high etc options ?(default is normal for me)
My gpu is gtx 1060 6gb , 8gb ram 1600ghz its installed in HDD… Cpu is default never bothered with overclocking , do you think that i will get better performance if i overclock it? My cpu cooler is coolermaster 212 EVO do you think its enough?

Updated: I did what you said i set the priority to low and not affinity (as i told you there is not such an option) and all the rest you said , set the settings to medium about and i tried Prague with 24 cars… The game was running very smooth like a charm , i thought :thats it! But the next race i tried in an other track i got too much stuttering again… I tried Prague again and i had stuttering again…
I closed the game and relunch it , i tried a race in Prague an again was smooth… I tried top speed and i had again stuttering…
Its becoming even more complecated now as your advices looks to help me to have way better performance (i tried also all option high and was smooth too) but once i change track the stuttering returned… Temps about gpu and cpu are not very high , i dont think thats the problem…
Any idea?

You might give overclocking a try. The minimum cpu requirement is an i5 750. It doesnt list an AMD counterpart, but from what I can find it’s close to a x4 960.

Also, turning shader cache on is what reduces cpu usage since it’s saving shaders to disk. If you turn it off, you’re using more cpu.

As i know T1100 phenom x6 should be better than fx6300 and for sure than x4 960
I did what rayman told and i got it fixed but that was only for the first race , then i got back to stuttering… :frowning:
Before changing the nvidia option i had cache on and power manager maximum performance

Well, I’m not sure how bad your stuttering is, but I’m fairly certain that everyone experiences a little bit of it. I have a 7700k at 4.9ghz with a 1080ti and I still get stutters. Sometimes bad enough that it stutters and then shoots me into a wall.

I’ve seen stuttering get to a point that it has happened to me as well.

Yeah sorry was thinking CPU Priority and typed Affinity when I originally wrote the post. I also just installed an application that sets Priority to Low each time the game is restarted so I dont have to manually do it each time.

Forgot to mention that I’m running SSD for my C boot/drive and the game is installed on a secondary HDD.

I was doing some additional testing after posting this and found a couple other things:

  • Eliminating the Page file causes more stuttering. (this is something I have done in the past for systems i have with 16gig or more in RAM)
  • Having the game actually installed on my C drive (SSD) seems to induce more stuttering as well

Ty to other poster with info on the Shader Cache, I may try activating and see how it goes. It was something I had read that helps some folks and is one of the settings I had with my final settings.

I do think that for those systems like this 1100T that are struggling/maxing out, it will probably help to go in and manually down grade some of the key settings manually (that might have larger CPU impacts) as opposed to leaving them as Dynamic.

I did do a sample run on my 6700k with GTX1080 and 960 Pro SSD and the game ran flawlessly. (yet another reason why I plan to upgrade).

FX 6300 is shown as minimum spec
FX 8350 recommended
Ryzen 7 ideal

Or at least that is the case according to a few different web sites I have found.

I also have an 1100T but I also have a FX 8350 and a Ryzen 5. Am running the game on the Ryzen 5. Still get some stuttering, worse on some tracks than others sometimes barely noticeable but rarely I get a case where it is almost unplayable. The early prototype racers on Dubai for example stuttering was the worst I have saw there and was throughout the entire race though worse on the first lap.

I have tried setting the priority higher but have not touched the affinity setting, will give it a try and see if it help any

Yes you’re right I meant Priority. Just updated.

Yes I agree there is a load balancing issue that was evident in forza 6 and Horizon 3
I notice all 4 cores/8 threads maxing out to 100%

Windows 10 version 1703 build15063.674
I7-4770k stock and @ 4.2Ghz
16GB Ram
Samsung 850 Pro SSD(1TB)
Nvidia 980 Ti (driver 387.92)
1440p G-Sync monitor
all games settings I have tried all with “NO” MSAA
also tried lowering the resolustion to 1080p

  1. preset
  2. medium
  3. maxed/Ultra
    I get stuttering under any condition but seems to be more prevalent after longer sessions.

I think it’s the AI-drivers that somehow get weird with CPU calculations now and then, and the CPU starts spiking like crazy. I seem to get this way less (stutter) if i try a free race without any drivatars.

Wow… if THIS is what I need to do to run games stutter-free on my PC that’s already ready for gaming to the limit, I’m really glad I’ve stuck to console all these years. Pretty much the reason I gave up on PC in the first place.

The ops PC, although capable of gaming; is running a CPU that released in 2010. They have done the right thing with their system by getting a really good graphics card, the GTX1080 is a cracking piece of hardware. But I highly doubt their current CPU is coping as well as a more modern processor would in utilizing that graphics card. I have a GTX 780, a graphics card that is a little bit older than the 1080 the op has, and my old AMD FX 6300 chip held the GPU back. On my newer i7 6700k build, my GPU can finally stretch its legs. I can only imagine the sort of bottleneck the op must be having. The scope of hardware for computers changes rapidly, and Phenom 2 chips, even the 6 core ones, where not known to be all that an impressive chip at the time.

Still, the lack of CPU optimization in FM7 isnt helping matters; and the game really does need an update to allow better spreading of the the work load on multicore systems. Hopefully that is something that T10 will implement. If they do, then systems with older CPU’s such as the OP of this thread, will have a much better time of running the game. Even with my i7, I still get a bit of stuttering every now and then.

By the way, you really shouldn’t be so quick to to discount the PC as a gaming platform. If a system is built well from the start, they can last quite a long while. The proof is in the pudding, the OPS AMD 1100T is still running Forza Motorsport 7. I wager that CPU is also still fairly capable with other modern games, so long as they have decent CPU optimization going on. But it pays to keep in mind that although the OP’s CPU released in 2010, it would have been worked on for at least 3 years prior to that release… You are essentially looking at hardware that is at least a decade old.

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That sucks. I’d never let bad games keep me from owning a superior platform.

The game is just poorly optimised CPU wise, even with a 3.8 GHz i5 4690 K I was getting stutters every now and then. Most console gamers probably wouldn’t notice it, but once you’re used to a stable 60FPS it’s annoying.

Nearly all games I’ve owned on PC have been fine or fixed easily, but FM7 can only be fixed by the developers.

I’ve not tried lowering the priority. I have my doubts that would do anything to help but will give it a shot and see.
I have tried raising the priority to above normal and at first I was sure that had helped but after more playing and testing it didn’t really seem to change much.

I have an AMD Threadripper 1950x and 1080ti. So please tell me that my hardware is not good enough…

Sersiouly, I go to set affinity and unpark Core 0. After doing that, I see a lot more thread being use. The load is spread across a lot better. It’s a lot smoother that way. This is until the Fall creator update gets release and fix Windows 10

I will try some more nvidia panel settings but i am not optimistic… As someone told above the game need patch it self …
About frames someone mentioned above , no matter if i set 30vsync or 60vsync the stuttering is the same…
And the most weird is that when i did what Rayman suggests in the first message , in first race my pc could run very sooth the game and i thought that i ficed that time but when i tried an other track (without rebooting the game) the stuttering was there … Massive stuttering every 1 or 2 seconds…
If i could not run the game never well i would say :ok my T1100 3,2ghz is old and i get bottleneck , but i managed to run it very smooth for 3 laps in Prague something that shows that my rig can run ok forza 7 but for some reason it doesn’t
Also to say that the game is not recognized by geforce experience while Forza Horizon 3 does…

The windows 10 Fall creator update will fix all the stuttering. It’s coming out October 17th. (tonight or tomorrow). Come back to this thread after you have done this Windows update. I think you will be surprised by better it is.