Why cant i enable rt on my intel arc igpu graphics

Im using an integrated graphics on a core ultra5 125h and it have ray tracing and it can run other raytracin g games like cybertpunk and alot others. my set up fullfilled all of the requirements like 6 gb of vram dx12 and stuffs. But still i cant enable rt in the graphics settings. I think its because in warthunder they dont count shared ram as vram. I’'m here just to ask if anyone else have the same problem and is there a fix