BlackViking90

linkHey. I've been going through numerous posts on different Flight sim forums regarding the debate where people using 5800X3D saying it has much better performance in msfs 2020 and xplane. Claims suggest the 96 mb L3 cache on 5800X3D takes advantage over 64 mb L3 cache on 5950X. For me this isn't a significant difference and measuring a cpu's performance based on just L3 cache is not a good enough data point. Sure the flight sims could be performing better with 5800X3D taking advantage for the additional L3 memory and pushing more frames but to me that sounds like an optimisation issue from the developers of flight sims where the can't fully utilise the potential of a 16 core processor (5950X) v/s 8 core processor (5800X3D). I'm currently using 5950X paired with EVGA RTX 3090 Ti and after the SU12 msfs 202 update, I'm struggling with frame rate (discussed this in another post). On xplane 12 as well I go max upto 33 fps, with gpu utilisation staying below 50% most of the time and cpu utilisation hitting around 60ish% On xplane 11 things are much much better. 45+ fps and during flight hitting around 75fps. Xplane 11 is quite mature now and seems to handle things much better. This performance difference makes me think that its more of a sim issue rather than hardware. I checked the bottleneck stats for cpu gpu combo on https://pc-builds.com. 5950X paired with RTX 3090 Ti on 4k res shows a 16.1% bottleneck, while 5800X3D paired with RTX 3090 Ti on 4k is 0.6% bottleneck. I fail to understand why a high end processor paired with high end gpu will under perform. I don't see issues of thermal throttling on my machine either. The posts about 5800X3D are intriguing and kind of persuading me to make a purchase and try out 5800X3D. Is it a good idea? Or should I wait for sim devs to fix issues of cpu optimisation in the future releases? In this video you can see the guy comparing both cpus on msfs 2020. It 11 months old video and on 5950X he's pulling 94 fps with a 3080. Watching this is just making me frustrated since I can't get the same performance out of the sim with a better gpu. Anyways, I'd like to hear from your experience guys. Please share your thoughts.

@kiwikat I'm running on Ultra settings. LOD is 200. Default Heathrow airport. No airport add-on. And sitting idle on runway in a PMDG 737-700. I didn't check the stats from dev mode. Will do that and post back. > You should still be doing a lot better than you are though My point exactly. Don't understand what's wrong.

Hi. I'm facing very low fps on MSFS 2020 (latest build). Went through many posts on different forums on the web but can't really find a solution. My specs: AMD Ryzen 9 5950x EVGA RTX 3090 Ti 32 GB 3600Mhz 4K monitor GPU utilisation stays around 40%. I saw many videos on YouTube where with same specs people are pulling 60+ fps on their rigs and gpu utilisation is maxed out to 99%. Many forums posts suggest that it's due to CPU bottleneck. But technically I don't understand how a bottleneck can occur with such high specs. The only possibility would be sim limitations (how sim utilises different cpu cores for efficiency and optimisation). Anyhow, I checked this using different tools like HWMonitor, GPUZ and Task manager. Screenshots are attached. I see my 16 core, 32 thread cpu has full load on 2 threads, mild load on 3-4 threads and rest and just sitting idle. Not sure why is this happening. Also in HWMonitor I observed CPU temps hitting 90+ degrees once. YIKESSS!!! I believe that would be due to the warm room temperature and my not so good thermal solution I'm currently using for my CPU (Cooler Master HYPER 212 Turbo). I plan on replacing this with a liquid cooler in next week. Anyhow, to manage the temperature I turned on my room AC and opened the side panel of my pc casing for better airflow and soon CPU was at around 64 degrees and while GPU was around 68 degrees. But even with temperatures now maintained didn't show any improvement in FPS. I'm confused here on what to try to fix this. OR if this is just a sim issue. Don't understand how other people on YouTube are squeezing so much out of the same specs. Any help is much appreciated.