13 replies to this topic

[MrPresident19]

My setup
2 x Radeon HD 6870
AMD Catalyst™ 13.3 Windows® Beta Driver
Custom User.cfg


The biggest reason why I couldn't get it working, despite my best efforts, was also the simplest.
You MUST run in Fullscreen. Windowed and Full Window will not allow Crossfire to function. In CCC I created a custom application setting for MWOClient.exe, set everything to "Use application settings" turned off Morphological Filtering (a suspect in a blurring issue) and set CrossFireX mode to AFR Friendly or Optimize 1x1.

AFR Friendly appears to work the best, as Optimize 1x1 gives errors more frequently, though AFR Friendly does give the occasional error (errors unrelated to some of the usual game crash errors)

I am able to run Colonel Pada Vinson's "Ultra Ultra High User.cfg" at a very smooth and consistent 60 fps. In-game looks incredible as well as having no UI stuttering or FPS drops. Both GPU's run at 96% average load, by turning "q_ShaderShadow = x" down, it reduces both GPU's a few %, turning particle related settings down further decreases GPU load %. With the same modified user.cfg and CCC profile but with CrossFire turned off, the best I can maintain is about 38 -45 fps.

[Stormy0307]

thank god you are a genius




the science is too tight!
I don't care about the bugs ever since the developers promised cake...

Edited by Stormy0307, 12 April 2013 - 06:50 PM.

[StarRoses]

Heya, are you running this on a notebook or desktop?

I didn't want to get the standard version on my notebook if you were running standard on a desktop.

[AdultPuppetShow]

Thank you Mr. President, you've solved about 60% of my performance issues.

[AegisKay]

If I could buy you a mech I would. Solved my fps drops and am running at a cool 130 fps now on ultra. Thanks!

[Kaeb Odellas]

This topic needs to be pinned. This is a huge breakthrough. I get 90 FPS at max settings with Crossfire working.

Edited by Kaeb Odellas, 11 May 2013 - 10:42 AM.

[RoofiesRfun]

This gives me an awesome frame rate but the screen flickers like a mad man. I'm working on a way to get rid of the flicker, I'll post if I am successful.

[Doelloos Verdwaald]

The flicker started for me when I changed the shadows from an ultra high cfg to low. With shadows completely off it went away.

[Dragonyos]

Is there a solution for the flickering?

[frag85]

DoC HUN, on 02 August 2013 - 12:54 PM, said:

Is there a solution for the flickering?

Not that I know of. On CF 7970's I have tried (edit)13.1-13.11 and every driver, CF mode (AFR, 1x1, Scissor, Supertile) and every game profile I tried flickers or has terrible/no scaling. I spent about a day (8+ hours), installing, uninstalling, and reinstalling drivers, launching the game hundreds of times trying to find a combo that works.

WIth the default CF profile I only get about a 10% increase in framerate. Single card I sit around 50-60 FPS, 95-98% usage. Default CF 55-65FPS, 95-98% usage on each card, Cryengine game profiles (and dozens of others) I get 90-100FPS 95-98% usage, but a horrid flicker making the game unplayable regardless of in game settings, turning vsync on ect... Its just bugged.

Come on PGI. You can do it. Every other Cryengine game I have tried scales 100% with a second card at the resolution I run. My nvidia cards scaled 100% as well and don't flicker in any cryengine game.


Anything like nHancer for Radeon cards? I'm familiar with Radeon Pro, but I wish there was something like nHancer. It is either ATI just doesn't have the settings to alter or Nvidia just has TONS more multi-gpu tuning options.

Edited by frag85, 16 October 2013 - 12:29 PM.

[Dog Cat]

Amd CrossFireX (XfireX) working in MechWarrior-Online.

After days and days...this is what worked for me.

Bring up, 'AMD Catalyst Control Center'(CCC). Go to, 'Gaming' tab, then to, '3D Application Settings'. Then click on, '+Add...'. Find, 'MWOClient.exe'. Example: C:drive, programs files(x86), piranha games, mechwarrior online, Bin32, and finely, MWOClient.exe. On bottom right click, 'Open'.

Back to CCC, 3D App setting, click on MWOClient.exe, now located under the, '+Add...' tab. Set everything to, Use Application settings except: Turn Morphological Filtering Off. Tessellation: Override and set to Off. CrossFireX Mode: set to Crysis2.exe.

That is it........ watch your Frames per Second (FPS)... soar.

Learning Curve: Unigine Heaven Benchmark 4.0

Custom: Quality-Ultra, Anti-aliasing: x2, Resolution: 1280x720, everything else, Disabled
FPS: 36 with Directx11 + XfireX: 57 FPS, a gain of 21 FPS
FPS: 35 with Directx9 + XfireX: 51 FPS, a gain of 16 FPS
FPS: 21 with OpenGL + XfireX: 21 FPS, a gain of 00 FPS

Custom: Quality-Low, Anti-aliasing: x2 Resolution: 1280x720, everything else, Disabled
FPS: 76 with Directx11 + XfireX: 120 FPS, a gain of 44 FPS

Custom: Resolution: 1920x1080, everything else same as above
FPS: ? with Directx11 + XfireX: 69 FPS. One card alone, would cause benchmark to automatically Lower resolution.

What I have Learned: (1). XfireX works best with Directx11. (2). XfireX must run in Fullscreen. (3). Too high a resolution kills FPS. (4). Tessellation hurts FPS the most. (5). Video cards must be set at same speed, core and memmory. (6). Most Blue Screen of Death, crashes, etc... were faulty memmory, low voltage on CPU, or CPU/NB. PC was stable everywhere but game. Now, big smile on face.......see you on the field of battle......

My PC is 5 years old: MotherBoard: Asus, Xhair 3 Formula (790FX-NorthBridge, 750-SouthBridge)
CPU: AMD, Phenom II x 4 @ 3500 MHz (B50, unlocked and OC)
RAM: G.Skill, 4GB @ 1600
Graphics: Two, AMD Radeon HD 5770, one manufactured by Gigabyte, one by HIS.
Window 7

I hope this helps someone........ I'm a noob to MWO and XfireX

[Precipus]

RoofiesRfun, on 12 May 2013 - 02:35 PM, said:

This gives me an awesome frame rate but the screen flickers like a mad man. I'm working on a way to get rid of the flicker, I'll post if I am successful.

try turning off the damage glow. what you are describing sounds like the same glitch with SLI, so might work for the lowly AMD cards as well?

Edited by Precipis, 09 March 2014 - 09:37 AM.

[Exarch Levin]

Unfortunately, Damage Glow is strategically useful. I dislike playing without it.

[Shamous13]

Good day. see the following thread for some more tweeks to ensure you are getting proper load balance between your crossfired cards.
Crossfirex Setup That Works Correctly & Sli That Others Have Working