VR Performance Overhead
So I ran a little experiment last night to see what kind of performance I was actually getting… it wasn’t good, but it also was very revealing.
Experiment: Repeatable 5 min downhill section in Monte Carlo - 11 - Ravin de Coste Belle
Quest 3 @90hz and 1.0 resolution 4090, 12900k, 32 gigs
No upscaling or foveated rendering at first
Advanced settings: Ultra Low = 30% headroom with consistent fps drops to the high 80’s
Low = 5 to 10% headroom, consistent for drops to the high 80’s
Medium = 0 to 5% headroom, more consistent drops to the low 80’s
High = 1% to - 5% “headroom”, even more consistent drops to low 80’s and high 70’s.
Experimented with Foveated rendering and DLSS, minor improvements, about 5% but worse clarity and still consistent drops throughout the level. Town sections or big vista’s seem to trigger it.
So it would appear that consistent FPS drops below 90hz are present across the board regardless of settings.
On larger unplayed levels at reasonable settings I am seeing BIG multi-second drops to the 40fps range as the shaders compile ( I’m assuming) then back up to around 90hz with little to no overhead.
What are you all seeing?
Have you found anything that actually stays truly consistent at 90hz with no drops?
