dx11 vs 12

[H.Squidward (M.D)]

Just been playing around with the settings, but not noticing much of a difference between the two. I think dx12 runs a little smoother but could just be some placebo affect. What is everyone else's experience with this?
My GPU is a 2080TI

[Cass]

DX12 runs better with asynchronous compute on vs DX11. Give it a go.

[peon]

DX12 is required for raytracing isnt it. Why would you use DX11?

The only scenario I would use DX11 in is if I had an older card that wasnt around when DX12 came out. In that case you would see some performance gains using the older directx.

On a side note, I am still quite annoyed that this game doesnt use ray traced reflections on water, like super annoyed. They couldnt even make it a option?

[halbermensch999]

Originally posted by Cass:

DX12 runs better with asynchronous compute on vs DX11. Give it a go.

+1

[krylke]

When I use dx12 the game crashes to often for me. Was playing it with everything maxed and raytracing and the game ran smooth but it kept crashing after about one hours gameplay so I gave up and play on dx11 now. Haven’t had one single crash since

[Darkrayne]

DX12 reduces CPU overhead quite a lot. It makes games more GPU intensive instead of CPU intensive. If you already have a powerful CPU, you'll only notice a minor difference. If someone is using something like an i3 8350K that has strong single thread performance but only has 4 cores, there will be a big difference.

That's the rough theory, at least. How it's implemented in some games is not good. Division 2 being a prime example. DX12 is a mess in that game.

I find that DX12 improves general frame rate pacing quite a lot in DL2. Higher 1% lows.

[SiEgE]

Originally posted by peon:

DX12 is required for raytracing isnt it. Why would you use DX11?

The only scenario I would use DX11 in is if I had an older card that wasnt around when DX12 came out. In that case you would see some performance gains using the older directx.

"Back in days", when newer dxes would be just packs of "undisableable new features that drain fps", people would prefer using older versions of dx to save up fps.
Ah.. crappy ol' days.

Nowadays, it is actually preferable to always be up to date with everything, unless there is a hardware-specific issue that leads to drawbacks. Like it is preferable not to use higher dx when your videocard has no support for it originally. Dx incompatibility tends to use "emulation", thus damaging performance.