High DX11 CPU overhead, very low performance.

ok so my new drivers 1023 scored

dx11 st = 1 418 371
dx11 mt = 1 273 318
mantle = 16 654 141

1018

dx11 st = 1 426 496
dx11 mt = 1 300 770
mantle = 16 895 257

so a little bit lower than before but will see what gaming does cause that's a different story

 

Looks more or less in the margin of error.

 

Tested twice again and still lower. My normal mantle score with 15.4 is 18mil but now 16 mil

 

Interesting. The version numbers don't change, but the actual dlls are definitely different. I wonder if they are trying different compiler options or something :3eyes:

 

What you mean. I still find it funny when at work i have a r9 270x and tested 3dmark api overhead and my scores on mantle was better there. Could it have something to do with crossfire?

 

When you have a piece of code that "becomes" a driver DLL, you have to compile it first.

They might not have changed a single line of code in that DLL (hence the same version number), but they might have changed settings on their compiler, producing a different DLL in the end (hence the variance in the results compared to 15.4.1.)

 

Well ok makes sense now. On 15.4 I get 19mil on mantle now only 16mil. I can even feel it in BF4 when running mantle a bit. I get some weird stutter/jitter or whatever. No the same as normal stutter but my FPS stays at 95FPS. I limit it to that to get less vsync input lag. also tried with vsync on and no FPS limit same thing.

 

Exactly !

DX11 is dead. DX12 is the future ! Who cares ?

AMD forgive DX11 and be focused on DX12 !
DX11 is old and slow. uke2:

Dont waste your time!

 

I disagree so much with this post that I won't say anything more than that.

 

Windows 10 coming in a few weeks ! Excellent performance in DX11

This thread is ....
sry

 

You realize that even the Windows 10 AMD numbers are almost 40% lower than NVIDIA's, right?

 

Link :

https://www.tripletremelo.com/amd-r...as-fast-the-gtx-titan-x-in-dx12-enabled-test/


DX11 is history

 

A little irrelevant, but latest nv driver improved dx11 single threaded further

350.05
http://www.3dmark.com/aot/23143

single threaded: 2 324 301
multi threaded: 2 428 128


352.86
http://www.3dmark.com/3dm/7026080?

single threaded: 2 510 688
multi threaded: 2 457 365



2nd run: with higher gpu OC to go inline with 350.05 gpu OC
http://www.3dmark.com/3dm/7026155?

single threaded: 2 515 729
multi threaded: 2 451 010

 

http://forums.guru3d.com/showpost.php?p=5053813&postcount=17

Problem solved, so where is the Problem ?

 

Problem Fixed with 15.5 ! Great Job AMD

 

Solved? NO
Fixed? NO

DX11 API overhead performance in AMD drivers is NOWHERE near the Nvidia drivers performance.

Improved? Yes.

Only that: improved, what is very FAR to fix and solve this problem.

 

NV if you read this thread please fix this, this is a huge downgrade.:bang:

 

This was already discussed here, the second test is bogus.

 

https://www.tripletremelo.com/amd-r...as-fast-the-gtx-titan-x-in-dx12-enabled-test/

NV is in trouble soon!

290X 33 % faster than GTX980 (DX12)

....as i said DX12 is the future.
You should be very happy about that !
DX11 is almost dead.

 

Uh DX11 is going to co-exist with DX12. It isn't designed to replace DX12. Writing a DX12 engine is way too much work for most non-AAA developers/engine developers. You have to manage everything yourself in terms of rendering and memory allocation -- things DX11 and OpenGL manage.

You should curb your enthusiasm about DX11's demise.