HD3870 Crossfire RAM question

[hobo]eclipse · May 15, 2008, 12:28 AM

If was was to add another HD3870 to my setup, would games, speciffically textures see 1 GB of Video memory available and use it accordingly?

Or would I still be at 512MB video memory?

Or is software dependent? (some games see and use 512MB, some see and use 1024MB)

**temeteus82** · May 15, 2008, 12:31 AM

I think that the ATI driver will be smart enough to utilize the 2nd card so that the performance will be good, balanced utilization of the video mem if CF is supported.

Judas · May 15, 2008, 05:36 PM

When a 2nd card is introduced in either a sli or crossfire configuration (and the features is turned on) the memory is not combined...

Because every texture and every bit of data that one card needs, the other needs as well (exactly)

Until they come up with a new method of properly deviding everything at a higher lvl, we will never see the combined value.

512mb on a single card in the crossfire = only 512mb will be used even if 2 or more cards are present.

[hobo]eclipse · May 16, 2008, 09:43 AM

ya thought i recalled reading that, bummer! hence the 3870X2s "sweetness"

May 15, 2008, 12:28 AM	#1
[hobo]eclipse ...just bummin 'round Join Date: Oct 2004 Posts: 2,897 Rep Power: 107 System Specs	HD3870 Crossfire RAM question If was was to add another HD3870 to my setup, would games, speciffically textures see 1 GB of Video memory available and use it accordingly? Or would I still be at 512MB video memory? Or is software dependent? (some games see and use 512MB, some see and use 1024MB)

May 16, 2008, 09:43 AM	Thread Starter #4
[hobo]eclipse ...just bummin 'round Join Date: Oct 2004 Posts: 2,897 Rep Power: 107 System Specs	ya thought i recalled reading that, bummer! hence the 3870X2s "sweetness"