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DX12 causing 10 fps drop

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Hi,

Since the latest update I have been trying the DX12, but with disappointing results. My PC is an Intel 11900 with a 3090 graphics card and with triple screens, I have been getting 30 fps in London (ultra). I dont have HDR monitors btw

When I change to DX12, with no other changes, I am getting 20fps but it is really stuttering, especially when panning. I know DX12 is only a beta but have noticed that others are getting better results than DX11, so I am wondering if there is a reason why I have lost 30% fps?

I tried to try DX12 but MSFS2020 would not even load. Found out the "usercfg.opt" now includes a variable to switch between DX11 and DX12. it's in the Video subsection.

PreferD3D12=0 is for DX11

PreferD3D12=1 is for DX12

in case anyone else gets caught up the creek without a paddle.

-J

13700KF | RTX 4090 @ 1440 | 64GB DDR5 | 2 x 1TB SSDs | 1TB M.2 NVMe

13 hours ago, chickster25 said:

but have noticed that others are getting better results than DX11

to notice any better results from DX12 you need to set the LDS slider to MAX 😀:

 

Edited by turbomax

AMD 7800X3D, Windows 11, Gigabyte X670 AORUS Elite AX Motherboard, 64GB DDR5 G.SKILL Trident Z5 NEO RGB (AMD Expo), RTX 4090,  Samsung 980 PRO M.2 NVMe SSD 2 TB PCIe 4.0, Samsung 980 PRO M.2 NVMe SSD 1 TB PCIe 4.0, 4K resolution 50" TV @60Hz, VR: Pimax Crystal Light + HP Reverb G2 @ 90 Hz, Honeycomb Bravo Throttle Quadrant, be quiet 1000W PSU, Noctua NH-U12S chromax.black air cooler.

60-130 fps. no CPU overclocking.

very nice.

16 minutes ago, turbomax said:

to notice any better results from DX12 you need to set the LDS slider to MAX 😀:

 

Maybe it is too early or i am too old..or both but what stands LDS for ?

Carsten U

If you’re getting bad results with DX12, just turn it off. I know some people are claiming all these new graphical benefits, but it’s all placebo. Asobo has made it abundantly clear there were to be no expected gains, in either performance or graphics. They just added the DX12 preview for testing. 

3 hours ago, RTK1972 said:

Maybe it is too early or i am too old..or both but what stands LDS for ?

Never too old. 

These starwars people said it's from the 60's

ooh i can feel the trekies burning me at the stake 

Edited by dogmanbird

Yes, me and @turbomax have seen the LDS clip a lot recently! :laugh:

Rob (but call me Bob or Rob, I don't mind).

I like to trick airline passengers into thinking I have my own swimming pool in my back yard by painting a large blue rectangle on my patio.

Intel 14900K in a Z790 motherboard with water cooling, RTX 4080, 32 GB 6000 CL30 DDR5 RAM, W11 and MSFS on Samsung 980 Pro NVME SSD's.  Core Isolation Off, Game Mode Off.

while we wait for the non-LDS version of DX12: the lady in that blue truck - simply adorable. can't get enough of her. who is she?

Edited by turbomax

AMD 7800X3D, Windows 11, Gigabyte X670 AORUS Elite AX Motherboard, 64GB DDR5 G.SKILL Trident Z5 NEO RGB (AMD Expo), RTX 4090,  Samsung 980 PRO M.2 NVMe SSD 2 TB PCIe 4.0, Samsung 980 PRO M.2 NVMe SSD 1 TB PCIe 4.0, 4K resolution 50" TV @60Hz, VR: Pimax Crystal Light + HP Reverb G2 @ 90 Hz, Honeycomb Bravo Throttle Quadrant, be quiet 1000W PSU, Noctua NH-U12S chromax.black air cooler.

60-130 fps. no CPU overclocking.

very nice.

20 minutes ago, turbomax said:

while we wait for the non-LDS version of DX12: the lady in that blue truck - simply adorable. can't get enough of her. who is she?

Catherine Hicks

Laminar Research customer -- Asobo/MS customer -- not an X-Aviation customer - or am I? 😉

LDS is in the Religious Preference menu beneath Celestial Navigation

5800X3D, RTX4070, 600 Watt, one or two 1440p 32" screens, 64 GB RAM, 4 TB  PCle 3 NVMe, Warthog throttle, VKB NXT EVO stick, Honeycomb Alpha yoke, CH quad, 3 Logitech panels, 2 StreamDecks, Desktop Aviator Trim Panel. Crystal Light VR.

 

  • Author
13 hours ago, turbomax said:

to notice any better results from DX12 you need to set the LDS slider to MAX 😀:

 

 Is that Terrain Level of Detail to max or Object level of detail to max or both to max settings?

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