Solved multiple monitor future plans? $$$ coming soon

[socrgy9]

ok, i know i want to go multiple monitors in the future. therefore, i know i need more graphics card ram. i currently have this radeon 6870:
Newegg.com - XFX Double D HD-687A-ZDFC Radeon HD 6870 1GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card with Eyefinity

what i'm wondering is, would it be the same as this radeon 7870 that has 2gb ram if i just buy a second 6870 and run the 2 in crossfire?:
Newegg.com - XFX Double D FX-787A-CDBC Radeon HD 7870 GHz Edition Black Edition 2GB 256-bit GDDR5 PCI Express 3.0 x16 HDCP Ready CrossFireX Support Video Card


or should i not plan for the crossfire'd 6870's with 1gb ram each and instead plan for the 7870 with 2gb of ram? would it be the same? what would be better for multi monitor setup

 

[Zepher]

The ram doesn't increase when you crossfire, so you will still be limited to 1GB with a pair of 1GB 6850's.

are you planning on gaming across the 3 screens or do you just want multi screens for desktop use?
If you game across 3 screens, you will want a faster card(s) since you will be running much higher resolution.
If you plan on just doing multi screens for desktop use, and game on one monitor, then that 1 6850 you have is going to to be fine.

 

[socrgy9]

I would be planning on gaming across multiple monitors. so i guess i'd have to upgrade the 6870 for the 7870 2gb ram it sounds like.

so what then, would 2 6870's in crossfire give me if not double the ram? just double the gpu power?

 

[Zepher]

I believe it adds about 75% more power, doesn't double the power.

 

[socrgy9]

Ok, cool thanks. appreciate the info