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Dx11 Performance Hit


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#1 Kaptain

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Posted 04 March 2014 - 02:21 PM

I was under the impression that dx11 should improve frame rate but I am noticing a performance impact. I have also noticed that my card Is running at 500-900mhz vs 1250 and that utilization is down to %30 or so. All setting on medium.

Anyone else experiencing a performance impact with DX11?

EDIT:
OK after doing some more testing my GPU (770 classified) is running at 700-800mhz in BOTH dx9 and dx11... Prior to this 'patch' It was running at 1150-1250 in game, all the time. GPU utilization is also down in both DX9 and DX11.

Edited by Kaptain, 04 March 2014 - 11:03 PM.


#2 Matthew Craig

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Posted 04 March 2014 - 02:24 PM

DX11 performance was on average for us around 10fps lower than DX9, this is a fairly early version of DX11 support in CryEngine and is not highly optimized we intend to see what we can do to boost performance in the months to come.

#3 Ecrof

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Posted 04 March 2014 - 02:36 PM

So it was added just so it could be added to the patch notes?

#4 Hellen Wheels

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Posted 04 March 2014 - 02:39 PM

Its called a "dry run" 'round these parts. No difference detected.

#5 Martis Gradivus

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Posted 04 March 2014 - 02:41 PM

I'm getting a drop from about 50 - 60 FPS to about 20 FPS.

This makes the game unplayable.

Going back to DX9

#6 Wandre

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Posted 04 March 2014 - 02:44 PM

I had a drop from 60 FPS to 30 FPS in the Mech Bay at High performance settings on 1920x1080 when I enabled DX11. I toned it back to Medium and it went back to 60. I have yet to test this in an actual match.

#7 Haakon Magnusson

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Posted 04 March 2014 - 02:45 PM

I am getting wildly variant framerates 25-60 range, generally 60ish but I think it dips low when I am looking to direction where enemy mechs are, even far away.

HW: GPU GTX780@941MHz Running 55-70% usage, i7-4770@3.5GHz - 4 threads doing 60-70% (All in all 8 threads on 4 cores), SSD, 16GB mem (Oh at DX11 1920x1200)
So basically there would be a lot of headroom in the hardware.. oh one point to notice, 140ish ping.

edit: oops silly me, had vsync on, funny never use it.. anyways cpu stays about the same average but gpu utilization peaks at 100% now and then. FPS 70-100 range (was too busy fighting :)

Edited by Haakon Magnusson, 04 March 2014 - 03:26 PM.


#8 ImperialKnight

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Posted 04 March 2014 - 02:48 PM

View PostMatthew Craig, on 04 March 2014 - 02:24 PM, said:

DX11 performance was on average for us around 10fps lower than DX9, this is a fairly early version of DX11 support in CryEngine and is not highly optimized we intend to see what we can do to boost performance in the months to come.


so..... you guys tested it, realised it's really not optimised and then decided to implemented on the main client anyway. Basically another DX11 public test then. Moving along

Edited by knightsljx, 04 March 2014 - 02:48 PM.


#9 Daggett

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Posted 04 March 2014 - 02:56 PM

My average framerate was good (about 50-70 fps) using DX11 on a decent machine, but i got some stuttering when looking around during the first seconds and when firing lasers.

So currently my DX9 experience is better, absolutely no stuttering there.

Edited by Daggett, 04 March 2014 - 02:57 PM.


#10 Hayek Lahiri

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Posted 04 March 2014 - 02:56 PM

Been having my frame rate drop from 40-10 every match so far today while DX11 and DX9. Map load time takes longer than before while running either DX version and also having CTDs.

#11 RX 187

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Posted 04 March 2014 - 03:14 PM

Huge DirectX11 performance hit, from around 55 - 65fps down to about 15 - 25fps.

System specs:
I7 930 @ 4.1ghz
Radeon 7990 (equals 2x 7970's in crossfire on one board) (trick into crossfire by using Bioshock application profile in catalyst)
24gb DDR3 1600
120gb SSD
1000W PSU

So, pc has more than enough power.
I run the game on 3 monitors (eyefinity) at a resolution of 5760x1080:
DX9 = 55 - 65fps
DX11 = 15 - 25fps

I may have to play around with the bioshock application profile and maybe try others, but from seeing other responses, seems more of a widespread performance hit than that.

#12 Bagheera

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Posted 04 March 2014 - 03:26 PM

+1

Unplayable in combat.

#13 Summon3r

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Posted 04 March 2014 - 03:29 PM

dx11 disasterous.... nothing is optimized about this game what so ever, im down 10-15 fps minimum from an avg of 50-60 on max settings

#14 Deathlike

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Posted 04 March 2014 - 03:34 PM

I'm not suffering any major losses, but I'm not benefiting either (probably still CPU bound here).

Great checkmark feature...

#15 Iqfish

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Posted 04 March 2014 - 03:40 PM

I'm at the same framerate as before.


BUUUUT


I'm experiencing gigantic, random Framedrops. They occur mostly during the start of the match (in Testing grounds too) and bring my FPS down to 10-20.

Really annoying in combat.
Disabling MSAA does NOT help.

Nothing like that with DX9.

System:
i5 2500K @ 4,6GHz
Sapphire R9 280X @ latest stable drivers
12GB 1600mhz RAM
MWO installed on a SATA3 7200rpm HDD.

#16 Jin Ma

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Posted 04 March 2014 - 04:07 PM

I'd rather see DX9 fully optimized than see them split resources into fixing DX11 to be honest. An optimized DX9 is what is going to broaden the pool of potential players/rigs.

#17 Matthew Craig

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Posted 04 March 2014 - 04:11 PM

View PostEcrof, on 04 March 2014 - 02:36 PM, said:

So it was added just so it could be added to the patch notes?


DX9 is increasingly deprecated technology, and DX11 is the default for Windows 8 and newer OEM systems.

#18 Kaptain

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Posted 04 March 2014 - 04:14 PM

I am running:
Q6700 @ 3.6ghz (soon to be qx9650 @ 4.0)
EVGA 780i FTW
8GB DDR2 5-5-5-15 @ 1000mhz
and a EVGA 770 Classified (free to me)

Now I understand my system is CPU bound and even after the upgrade that will still be the case... The problem I am experiencing is that my 770 classified does not seem to be utilized when playing with MWO's new DX11 implementation.

DX11: Utilization falls to 30% or less and the card clocks itself down to 700ish MHX from the 1250mhz on DX9

I thought one of the big 'selling points' to DX11 is that it is supposed to offload tasks from the CPU to the GPU and improve performance? It looks like the exact opposite thing is happening

Edited by Kaptain, 04 March 2014 - 04:16 PM.


#19 9erRed

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Posted 04 March 2014 - 04:18 PM

Greetings all,

@ Matthew

Can you look into having "hover over" info box's appear on the DX11 settings sliders?
- Something advising us what it actually does and if there may be a performance hit or conflict with something else.
- possibly something like telling us what effect setting the "shadows" bar will cause.
- Especially the AA settings.

Any help would be appreciated, while we try to tweak the best out of our systems. And as you are working on bring in additional functionality for the D11 route.

Any idea on a time line for adding "Bump mapping" or "tessellation" to the game? Or does that require a complete "relook" at all the assets

Thanks,
9erRed

Edited by 9erRed, 04 March 2014 - 04:23 PM.


#20 Chronojam

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Posted 04 March 2014 - 04:22 PM

View PostMatthew Craig, on 04 March 2014 - 02:24 PM, said:

DX11 performance was on average for us around 10fps lower than DX9, this is a fairly early version of DX11 support in CryEngine and is not highly optimized we intend to see what we can do to boost performance in the months to come.

What rationale is there for deploying a known-incomplete build of Dx 11 that degrades the player experience on the production server, when there is an idle test server available? Who made the call to release a detrimental build, regardless of its impact, just to claim the (revised) deadline was met?





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