Direct3D11 vs OpenGL speed test's (EFB2RAM)

Darkness Knight · (This post was last modified: 12-15-2013, 02:13 AM by Darkness Knight.)

Here some test's using EFB to RAM in D3D11 and OGL.

Hardware:

Core i7 4770K @3.9GHz (4 threads - H.T virtually disabled).
Geforce GTX770 @ Geforce 331.93.
Windows 8.1 Pro x64.

Software:

Dolphin [master] v4.0-532 x64.
MSI Afterburner v3.0.0 b17 + RTSS v6.0.0 b3 x64.
Super Mario Galaxy 1 [PAL].
Super Mario Galaxy 2 [USA].

Configuration

Dolphin core:

Backend D3D11:

Backend OGL:

Test's

[color=#000099]Super Mario Galaxy (RMGP01)(Europe)[/color]

EFB2RAM D3D11

Spoiler:

EFB2RAM OGL

Spoiler:

[color=#000099]Super Mario Galaxy 2 (SB4E01)(USA)[/color]

EFB2RAM D3D11

Spoiler:

EFB2RAM OGL

Spoiler:

Conclusion

1- EFB2RAM in D3D11 is a lot more faster! or
2- EFB2RAM (maybe) is broken in D3D11.

Salu2 - Darkness Knight

***MayImilae*** · 12-14-2013, 02:31 PM #2

You weren't using the Vertex Streaming Hack. Turn it on and watch OpenGL fly past D3D11.

And while you are at it, turn on Ignore Format Changes and turn off OpenMP.

Darkness Knight · (This post was last modified: 12-14-2013, 03:12 PM by Darkness Knight.)

(12-14-2013, 02:31 PM)MaJoR Wrote: You weren't using the Vertex Streaming Hack. Turn it on and watch OpenGL fly past D3D11.

And while you are at it, turn on Ignore Format Changes and turn off OpenMP.

Ok but (think) Vertex Streaming Hack is useless in EFB2RAM, maybe work's in EFBtoTexture.
OpenMP = OpenCL = useless?
Ignore Format changes is a safe hack?

Configuration suggested

Super Mario Galaxy EFB2RAM OGL (Hack's Enabled)

Spoiler:

EFB2RAM is broken in D3D11?

Salu2 - Darkness Knight

**NaturalViolence** · 12-14-2013, 03:06 PM #4

Screenshots inside spoiler tags please. Not all of us have super high resolution displays on our devices.

Darkness Knight · 12-14-2013, 03:08 PM #5

(12-14-2013, 03:06 PM)NaturalViolence Wrote: Screenshots inside spoiler tags please. Not all of us have super high resolution displays on our devices.

ok boss.

Salu2 - Darkness Knight

**NaturalViolence** · 12-14-2013, 06:08 PM #6

Thanks.

Darkness Knight Wrote:1- EFB2RAM in D3D11 is a lot more faster! or
2- EFB2RAM (maybe) is broken in D3D11.

It's confirmed to be working so number 2 is ruled out.

I would also turn off vsync, force texture filtering, and per-pixel lighting to make this a bit more fair.

Check to make sure that your GPU is not throttling while using d3d11.

Have you tried comparing them with efb copy to texture to confirm that it's this specific option that is causing the slowdown and not just the backend in general?

It is normal for performance to vary by different amounts in each backend based on the game, hardware, and settings.

Darkness Knight Wrote:OpenMP = OpenCL = useless?

Mostly. Not entirely though. OpenCL is useless. OpenMP has reduced stuttering in some games.

Darkness Knight Wrote:Ignore Format changes is a safe hack?

Yes. Turning it off results in a slowdown and the vast majority of games don't benefit from it at all. Including this one.

Darkness Knight · (This post was last modified: 12-14-2013, 07:12 PM by Darkness Knight.)

Quote:It's confirmed to be working so number 2 is ruled out.

Good =D.

Quote:Check to make sure that your GPU is not throttling while using d3d11.

My gpu/cpu is not throttling, look the screenshots (Top > Right):

GPU:

1058Mhz fixed.

Quote:Have you tried comparing them with efb copy to texture to confirm that it's this specific option that is causing the slowdown and not just the backend in general?

Yup, look this comparison:

Super Mario Galaxy EFB2Texture D3D11

Spoiler:

Super Mario Galaxy EFB2Texture OGL

Spoiler:

50-60fps: EFB2Texture - 60fps EFB2RAM, at least in the first level =P. It's strange, with my old PC (i5 750 @3.8GHz - GTX770) had better results using EFBtotexture (as usual).

Quote:Mostly. Not entirely though. OpenCL is useless. OpenMP has reduced stuttering in some games.

mmm i see, have a great impact above the charge CPU =/.

Quote:Yes. Turning it off results in a slowdown and the vast majority of games don't benefit from it at all. Including this one.

Great! enabled.

Salu2 - Darkness Knight

**Link_to_the_past** · 12-14-2013, 07:50 PM #8

Why have you disabled idle skipping?

Darkness Knight · 12-15-2013, 12:59 AM #9

(12-14-2013, 07:50 PM)Link_to_the_past Wrote: Why have you disabled idle skipping?

I try to enable the least possible amount of hacks.

Salu2 - Darkness Knight

**NaturalViolence** · 12-15-2013, 09:27 AM **#10**

*Gouges eyes out*

Most of these things are disabled/enabled by default for a reason. You really shouldn't touch them unless you at least know what they do and what the pros/cons are. I don't believe we've observed a single game that benefits in any way from turning idle skipping off.

NaturalViolence Wrote:Yes. Turning it off results in a slowdown and the vast majority of games don't benefit from it at all. Including this one.

Darkness Knight Wrote:Great! enabled.

Your screenshots show you turned it back off when doing the efb copy to texture comparison. You also turned vertex streaming hack back off for some reason.

Darkness Knight Wrote:mmm i see, have a great impact above the charge CPU =/.

What?

Your efb copy to texture comparison is useless. You left the framecap on so both are running at fullspeed regardless of which one is faster and by how much.

Turn off framelimiting and test them again. And change all the options we listed above.