I did a similar upgrade just before Christmas and have been surprised and delighted by the improvement.
I upgraded from a 5800x and 32Gb DDR4 3600 RAM to the 7700x and 32Gb DDR5 5600 RAM. Because of the socket change, it needed a new motherboard - I went for the cheaper ASUS x670 Prime that all the reviewers seem to hate.
I fly exclusively VR (HP Reverb G2) and did the upgrade more as a preparatory stage before a potential GPU upgrade from my 3080Ti to a 4***series once prices made that possible hopefully sometime in 2023, and wasn’t expecting much immediate improvement.
But it’s great. I was immediately able to raise the Terrain LOD from 170 to 300 and the Objects LOD from 140 to 200 with no impact whatsoever on smoothness. And the improved clarity - especially over cities - was impressive.
Yesterday, I decided to stress test it with ‘live’ FSLTL traffic and live weather from one of the UK’s busiest airports EGKK London Gatwick to the UK’s actual busiest airport EGLL Heathrow, in the inibuilds A310 (which has a bit of a reputation of being heavy on the system), and flying low over central London on the way. It took a few seconds to settle down after spawning at Gatwick, but then was as smooth as normal in cockpit and out. It was also the first time it has been worth flying low over London - the clarity, detail and lack of constant morphing was a delight. FPS varied between a low of 25 initially on the ground to 30-38 for the bulk of the flight; temperatures pretty steady at around 62 degrees; two threads running at around 4.9MHz and only spiking to 5.4 when initially switching from 2D to 3D on the ground at Gatwick.
Oh - and this great result visually, still has CPU as the limiting factor…so maybe I can defer the GPU upgrade a little longer 