Author Topic: usage of video memory in SLI or Crossfire configs ?  (Read 1838 times)

gonzohot

    Reputation: 37
usage of video memory in SLI or Crossfire configs ?
« on: February 09, 2011, 04:02:59 pm »
February 09, 2011, 04:02:59 pm
Hi !

I'm still "testing" Lumion and I must say it convience me at this point. I only wait better financial days to buy a license and a new graphic cardCry.

I'm actually using a 1.75GB GTX275 and it's quiet good in most cases (the only import operation who crashed is a NewYork 3d scene with a LOT of maps, unless even biggest evermotion scenes works perfectly !!!).

I was wondering how the video memory of the GC is used and shared especialy when running in SLI or Crossfire?

Does lumion use the whole memory of both cards or just the main card memory like some games (I think about GT4)?

I'm Asking this because I was thinking to upgrade my GC and I'm hesitating between a couple of 2GB radeons HD6950 (that you can actually patch to be equal to the HD6970) or a GTX580 3GB (available soon)?

 

Comments and suggestions are welcome !

 

Here are some grab screens of my tests:

3Dcastle

Airport

EverHouse01

EverHouse02

EverHouse03

Foster01

Spa01

usage of video memory in SLI or Crossfire configs ?
« Reply #1 on: February 09, 2011, 05:33:58 pm »
February 09, 2011, 05:33:58 pm
In SLI or crossfire everything is mirrored so when you have 2 1GB cards they do not add up to 2GB. This is for every application and not specific for Lumion.