Doing some research to find out what other people are experienceing with close to my set up as possible
I found these posts over on Reiza forums
At the end , the final reply, said “
im also interested in hearing your subjective thoughts on quality. I have a 5700x and an RTX3070, with an HP Reverb G2. I'm clearly CPU limited, experiencing stutters at specific corners every time but smooth performance otherwise. Does the 5800x3D get rid of these stutters?”
Although no reply to this post, he says “CPU limited” and gets stutters on around the same corners every time (like myself)
Further up the post, a guy did comparison between 2 AMD CPUs (although not my 7600X) results are
AMS2 with 5600X / AMS2 with 5800X3D
MOP: 2 lap race on Monaco w/ 16 AI. Starting in 13th place and holing 13th the entire race.
App: Automobilista 2 HMD: HP Reverb Virtual Reality Headset G20 (90.000 Hz, IPD 63.8)
GPU: NVIDIA GeForce RTX 3080 (31.0.15.2802, Tavg 79.3, Tmax 83)
CPU: AMD Ryzen 5 5600X 6-Core Processor (Tavg 62.3, Tmax 70)
CPU: AMD Ryzen 7 5800X3D 8-Core Processor (Tavg 71.8, Tmax 79)
Delivered fps: 88.88 Duration: 4min. Headset was active: 100%
Delivered fps: 89.44 Duration: 4min. Headset was active: 100%
GPU Frametimes:
Median: 9.7 ms / 9.3 ms
99th percentile: 12.6 ms / 11 ms
99.9th percentile: 14.2 ms / 12.2 ms
frametime <11.1ms(vsync): 97.7% / 99.3%
CPU frametime:
Median: 6.1 ms / 3.8 ms
99th percentile: 8.8 ms / 5.7 ms
99.9th percentile: 10.7 ms / 7.2 ms
frametime <11.1ms(vsync): 99.9% / 100%
Reprojection Ratio: 1.4% / 0.7%
Max. SteamVR SS during the session: 70% / 70%
Overall I did gain that ~2ms frame time I was seeking and the race is smoother.
Dirt Rally 2 with 5600X / Dirt Rally 2 with 5800X3D
MOP: Same track and conditions on 1st gear only no breaks.
App: DiRT Rally 2.0 HMD: HP Reverb Virtual Reality Headset G20 (90.000 Hz, IPD 66.4)
GPU: NVIDIA GeForce RTX 3080 (31.0.15.2802, Tavg 74.7, Tmax 83)
CPU: AMD Ryzen 5 5600X 6-Core Processor (Tavg 56.6, Tmax 68)
CPU: AMD Ryzen 7 5800X3D 8-Core Processor (Tavg 60.9, Tmax 71)
Delivered fps: 87.79 Duration: 5.6min. Headset was active: 100%
Delivered fps: 87.95 Duration: 6.6min. Headset was active: 100%
GPU Frametimes:
Median: 9.1 ms / 9.1 ms
99th percentile: 10.3 ms / 10.2 ms
99.9th percentile: 10.6 ms / 10.5 ms
frametime <11.1ms(vsync): 100% / 100%
CPU frametime:
Median: 4.8 ms / 3.1 ms
99th percentile: 6.7 ms / 4.5 ms
99.9th percentile: 8.5 ms / 6.2 ms
frametime <11.1ms(vsync): 100% / 100%
Reprojection Ratio: 4.6% / 4.2%
Compositor Frames Dropped: 3 or 0.0% / 4 or 0.0%
Max. SteamVR SS during the session: 100% / 100%
Over that game ran a little smoother but DR2 is POS as we all know.
SOURCE :
https://forum.reizastudios.com/threads/ams2-vr-performance-amd-5800x3d-vs-5900x.28480/
on Overtake.gg, , a guy commentated on his setup and the guy mentions going to a 9800X3D sorted out his stutters
https://www.overtake.gg/threads/9800x3d-vr-sim-racing-tests.278295/
Further down the post one guy said
Increasing the car count should also reduce the impact of the gpu. For example, I get the exact same results with 70 cars @ Nordschleife using either a 2070s or 4070 ti + 9800X3D.
Further reading comes to this guy SAME CPU AS ME (7600X)
Yesterday I've updated my 7600x to 9800x3d.
And in LMU gains are unbelievable.
From 65 FPS during heavy storm with full grind at night at LeMans which was worst scenario for me, now it's stable 90 FPS. All other tracks, time of the day weather combo stable 90FPS.
I've even increased visible vehicles from 9 to 20!
GPU timings also improved about 2 ms.
I'm running G2 at 110% resolution with 7900XTX and 32GB 6000Mhz RAM.
Now This is more interesting because hes running a 7600X !
Final one,
Guy over on reddit (yes I know) says moving from SteamVR to OpenXR helped stuttering
