Vulkan just pushes it over the edge and OpenGL is where I need to be.

So thanks for the insight, still not sure what is happening, maybe temperature related if its on the edge of throttling I may not see it as I only see whole temperature degrees. OpenGL the GPU runs at 35% and Vulkan at 7% utilization, my CPU is the same at 26%īut when I start Vulkan cold (ish) I get 22 FPS but a sudden drop to about 12 FPS in about 1 min and it stays there, OpenGL will drop but only by a couple FPS from about 22 and the GPU does seem to settle to a lower temperature over time (87 deg) The CPU core speeds vary from 2.1GHz upto 4GHz at times confirming the point above.

The max CPU (95 Deg) and GPU (90 Deg) temperatures are much the same for both Vulkan and OpenGL I understand this subject has been covered many times in the recent past but I've tried many different options without success.Īny help or suggestions would be appreciated I'm using a Omen i7-8570H 6 cores 2.2GHz with an Nvidia GTX1070 with Max-Q with 8GB video RAM and Nvidia driver 460.89 and G-SYNC With it operating real weather at JFK I've had, with Vulkan, 4/5 FPS and OpenGL it was above 20 FPS. I have Orbx scenery for the UK but not for the USA, and SkyMax but it makes no difference here. It seems to be the same wherever I am in the world Strangely I get a 5 FPS increase if I view to the left or right. With Vulkan same conditions I get 15 FPS rising to 20 FPS without TG, not useable. With OpenGL at LAX runway 7L with the stock B737-800 with systems on and static at midday with CAVOK weather I get 26 FPS with Traffic Global and 36FPS without, may not be the best but is useable. I currently use, and have no problem with OpenGL because I get much better frame rates, it's just I would like to understand why Vulkan doesn't deliver a performance increase for me and have a Fear of Missing Out.

Vulkan vs opengl vs directx 11