ATI/AMD Crossfire Application Profiles & settings for FO:NV

[kamatsudash]

Hi,

 

First of all - sorry if this is the incorrect forum, but this seems the most appropriate. I've also searched, and not found any answer on this.

 

As you might be aware - AMD/ATI have never officially released a Crossfire/CFX application profile for Fallout: New Vegas. While they have included crossfire performance improvements in their drivers, nothing specifically for FO:NV in an application profile. With the more recent CCC/vision-control-centre (VCC) they allow you to now setup/configure application profiles for different games, including crossfire settings. At the bottom of the "3D Application Settings" tab/area is now a section/option to change the "AMD CrossFireX Mode for 3D Applications". I'm assuming that using this can allow you to use specific CFX profiles and/or settings for games, especially ones which might not have their own CFX application profile (such as FO:NV, and you can go through the list of applications in this section to verify this).

 

What I'm wondering is, what option would I use here to enable a CFX profile to be used in FO:NV? Or would I have to use RadeonPro to do so?

 

The options provided:

 

1. Disabled — Disables AMD CrossFireX / AMD Radeon Dual Graphics support.

2. Default Mode — Uses the optimal graphics mode based on the current application and available AMD custom profiles.

3. AFR Friendly — Uses alternate frame rendering (AFR) mode for applications that do not have an AMD predefined AMD CrossFireX / AMD Radeon Dual Graphics profile.

4. Optimize 1×1 — Uses alternative frame rendering (AFR) mode with additional optimization for 1×1 resources.

5. Use AMD Pre-defined Profile — Uses an AMD predefined application profile with another application profile.

 

What I'm wondering is - can I use this to force/enable a CrossfireX profile for use with FO:NV? And if so, which option do I use? - I'm thinking using either of the AFR options, although I don't know what the difference between the two is, or use #5 and use Skyrim's profile.

 

Setting this correctly should allow/force CFX to be used in FO:NV, if I'm understanding this correctly. Or at least offset any/some negative scaling that might exist as there is no application profile for it. I'm hoping someone might be able to provide some assistance with this - like whats the differences between options #3 & #4, would option #5 using Skyrim work... or would I have to use RadeonPro for CrossfireX/CFX support in FO:NV?

 

Thank you in advance.

 

Edit. Just thought I'd add the following as well:

 

My biggest problem regarding FO:NV is I use NVSE with the 4gb enabler exe to run FO:NV. This means the actual "program" running when I play FO:NV is not the standard default version, so any/all driver based crossfire settings will not work for me. So if I want to use crossfire with FO:NV, I need to configure a application profile that enables use of crossfire with the program that is actually running when playing FO:NV - and this is where my dilemma comes into play, as I don''t know what of the above options to use.

 

I do get crossfire usage if I play FO:NV via the normal exe file, but then half my mods don't work as they require NVSE... and if I run NVSE without the 4gb enabler, I run into issues because of memory sizing. So I can either play FO:NV without NVSE, but missout on a lot of my mods, play with NVSE and get crossfire support but have to remove a lot of mods due to memory issues, or play with 4gb NVSE to allow all mods to play nicely but get no crossfire.

 

1. Nope. I don't want to disable CFX

2. Not applicable, as the driver support for FO:NV does not recognize the name of the 4gb NVSE enabler I'm using. Thus no crossfire when using it.

3 & 4 - I don't know enough about wither of these options. They both use AFR, whatever that is, but the 1 is 1x1 optimized? No idea if either are appropriate or should be used.

5. I guess I could always configure it to use Skyrim's CFX application profile. No idea if that would work, but CFX does work for me in Skyrim... so maybe using it's application profile would allow me to use crossfire in FO:NV with my NVSE 4gb enabler.

 

Does anyone have any advice for me regarding this? Any idea if AFR is what I'm looking to use? And if so, would it be AFR or Optimized 1x1 AFR? Or would using Skyrim's profile work?