7 réponses à ce sujet

[FurousJoe]

 Okay so I can framerate spikes/dips at seemingly random times, often after enemy encounters are over.

It'll run at a steady ~56-~70 fps normally, but suddenly it will drop to ~26 fps for about 10-15 seconds.

Specs:

Intel i7 940xm @ 3,2 Ghz
x2 HD 5870 Mobility Xfire
8gb Ram
Windows 7 64-bit

Settings:

DX11 (don't know if it even matters in demo)
High settings
16x AF / 0x AA
Ambient Occlusion OFF
1680x1050 resolution


Any advice here? I mean sub 30 fps on such hardware is not acceptable for a game looking like this =/

[Darker_than_black]

I also seem to be getting this at certain points. Usually when a conversation begins after a battle but at other times as well. Weird.

[Epic Legion]

Try disabling AF

[FurousJoe]

Epic Legion wrote...

Try disabling AF

Even if this works and fixed the performance do you find it reasonable with my hardware?

I really hope the performance issues are fixed in gold version.

[ArmeniusLOD]

AF is not a problem on modern hardware, especially since it's built into the machine code now. The demo is not running DX11 as explained here, which means it's probably running in DX10 mode in the demo and could explain the poor performance.

You know what, I hate to say it, but it might be a problem with laptop GPUs or Crossfire.

Modifié par ArmeniusLOD, 22 février 2011 - 07:58 .

[StrikeQ]

ArmeniusLOD wrote...

AF is not a problem on modern hardware, especially since it's built into the machine code now. The demo is not running DX11 as explained here, which means it's probably running in DX10 mode in the demo and could explain the poor performance.

You know what, I hate to say it, but it might be a problem with laptop GPUs or Crossfire.

Changing the config to Dx9 instead of Dx11 seemed to solve my FPS drops (at least in the openeing cinematic and start of combat, haven't tested further). Though it does drop settings down to Medium instead of Very High

Hopefully not indictive of DX11 play in the retail version. (Even though the demo supposedly has no Dx11)

Modifié par StrikeQ, 22 février 2011 - 08:08 .

[ArmeniusLOD]

Hmm... someone just posted they had success in DX11 when turning AF off. OpenGL would never have this problem...

[FurousJoe]

ArmeniusLOD wrote...

AF is not a problem on modern hardware, especially since it's built into the machine code now. The demo is not running DX11 as explained here, which means it's probably running in DX10 mode in the demo and could explain the poor performance.

You know what, I hate to say it, but it might be a problem with laptop GPUs or Crossfire.

Disabling xfire cripples the FPS so it definatly is optimised for xfire, and the gpu's? I know they're not highend for desktop counterparts, but they're still compareable to desktop 5750-5770 which is plenty for this game.