Just asking if someone has tried enabling/disabling HT in the bios. Like we did with FSX/P3D.
If yes any benefit from it?
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I have 100% CPU usage without HT, 50% and less with HT
I also had to reduce my OC, due to BSOD.
So I need to keep HT on.
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so the performance was smoother with HT?
I had HT Off, OC’d to a steady 4.7GHz (Core i7 8700K, 3.7 Clock, 4.7 TurboBoost) for P3D.
Before I installed this, I decided to drop back to 4.0GHz and turn HT back on due to high CPU temps (Was averaging 90-95ºC and didn’t want to burn the CPU out)
Hyperthreading on, I’m getting pretty smooth performance. FPS is on the lower end (20-25fps average, occasionally hitting 30fps) and I’d say HT would be beneficial with this Sim as it seems to average performance across all cores in my experience so far.
(Not an expert though, but I’d say being a more modern platform, HT is beneficial)
Your mileage may vary. I’d say take your own time testing with HT on or off to see how it performs on your end.
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For me HT on (I7 8700K @ 4.8Ghz) made the sim noticeably smoother!
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Cool, I wonder if it’s considering the threads as logical cores and it just chooses not to use them. If you’re getting 50% cpu usage, it sounds like the sim is only using the logical cores. Maybe I’m wrong tho
I have a Ryzen 2700X and disabling SMT in BIOS has given me a 20 percent performance bump. I will leave off for now. Still only getting 30fps at KLAX Los Angeles. Feel like I should be getting about 40 with RTX 2080Ti, but something with the CPU is still holding it back. Turning on developer mode framerate into tells me CPU mainthread is at 45 ms while GPU is only 15-20 Ms.
so on your end you have to pump up the GPU load? lessen the CPU load?
you have a cooling system? cause those temps seems way too high!
H80i All-in-one Water cooling unit. The temps have come down considerably since reducing the over clock.
I was pushing the limit to see what I could do with the CPU and try and milk as much performance out of it as possible. (Prior to MSFS Coming out) - The Bump to 4.7-4.8GHz didn’t seem to really give a noticeable boost so I dropped back.
It just runs a bit better, better IPC. I also tried changing Precision Boost Overdrive (PBO) from Auto to Enable in BIOS and got a bit more boost in frames. My 4 sticks of RAM only runs at 2800MHz because I could never get the 2 different brands to play nice together on my motherboard. 3200mhz XMP profiles don’t work on my AMD mobo, the models I have are not on Motherboard QVC list. I’ve tried manual RAM overclock on my Ryzen 2700x and could never get it to post.
Slightly off-topic but I’d recommend anyone who doesn’t regularly do so, Check your motherboard manufacturer for any BIOS updates. I didn’t check mine for a year and there’d been a range of stability improvements, RAM Support and Graphics Card support added.
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My experience. 12 thread Broadwell-E 4.5 Ghz 1080 Ti overclocked to 2050mhz.
4K all ultra settings. I can maintain over a min of 30 FPS at all times which is outstanding to me. The occasional streaming hiccup. I flew over my acreage on a hill, hilarious…it still had the barn that collapsed in a ice storm about 10 years ago. Too the point of the thread, disabling H/T caused a 30% reduction in average and the mins dropped into the teens. My limitation is GPU horsepower, in dev mode I’m barely using half the CPU horse power (render is like 2.3ms) whereas GPU is pegged and, runs 5C hotter than any other title. On an AIO I usually don’t hit over 50C. I topped out at 63C after a long session.
So no, not really. That cooler is totally wrong for anything but stock. 
Get an H110i, slap another set of 140mm for push/pull and you can run 4.8 all day ~70C or less unless you have real dud processor. I never hit over 55C unless I’m doing a bench.
Since I dropped it back to 4.0GHz (I’ve since dropped it right back to Stock, with TurboBoost enabled) - It doesn’t really get over 60ºC.
I am planning at getting a new case at some point later on, probably a Fractal Design Define 7 with H115i or 150i or similar to reduce the volume of my tower. The H80i was bought for my old 4790K and transferred across when I did a semi-cheap Upgrade a couple of years ago. The H80i was really my fest adventure into water-cooling, having previously used stock coolers on my 2008 E8400 prior.
I’ve just dumped a bit of money purchasing a 64GB DDR4 3200 kit to replace the 16GB 3000 kit.
Next up will be a 3080Ti or 3090.
I enabled hyper-threading amongst a few other things and I am running exceptionally well on Med-Ultra settings with an i7-200K and GTX 1070, both overclocked. 16GB of system RAM. Disabling the simulator cache, I believe has made a significant gain to my performance. 60FPS within the GA aircraft. Clouds on Ultra, windscreen effects on Ultra and high textures. ‘Game Mode’ off in Win10. Good luck. I have disable V sync in game and set Nvidia Control Panel V sync to FAST. I dont think I have anything set to low. There is performance to be found in this simulator, with updates it should get better. My load times are much quicker than X-Plane 11. Charles.
i have the H100i GTX. I used it with my i5-2500k for about 7 years. Now i bought the i5-9600k with turbo boost and still use the same liquid cooling. In MSFS2020 it never went past 60C…
About HT i left it ON after testing and i have to say its better this way, this aint FSX/P3D and HT ON seems to work fine
Why in the world would you go with 64GB of slow memory versus 32GB of 4000mhz+ memory? Unless you’re needing it for rendering, 32GB of fast memory would be cheaper and better.