To upgrade or wait.

[Kaash]

i know there been many of these threads in the last month and all. I apologies.
I have currently built a new i7 gaming PC. i7 920 OC - 3.6Ghz, 6gig Kingstong hyper x ram, 160GB SSD, corsair 1000HX PSU. I recycled my GPU from my old PC into this one - 4870x2. I want to do eyefinity, i currently have 2 Dell U2410 and 1 BenQ V2400W. Now for the upgrade question. Would you purchase a XFX 5970 2GB or wait for XFX to release their 4GB 5970 model? THanks again for helping me choose. Its a lot of money either way i go.

 

[defaultluser]

You probably don't need to wait for the 4GB cards.

Anand did a thorough test of the 5870 Eyefinity 6 card, and found that at approximately your resolution (they used 3x1920x1080), there was no difference. Since the two GPUs of the 5890 run independently in AFR, the memory usage should be similar to that of a single 1GB 5870 in the test.

You might be able to increase settings a tiny bit with nearly twice the GPU power, and might POSSIBLY hit your memory limits, but I doubt it. Just looking at those benchmark results, the move to the 5890 will mostly make the settings he tested playable.

 

[maap]

Wait for some reviews

 

[rUmX]

I haven't seen any reviews so far for the 5970 4gb, so it's better to wait before you make a decision.

However there are a few reviews of the 5870 E6 2GB card in Crossfire and you can use the numbers to simulate the performance of the 4gb 5970.

http://www.widescreengamingforum.com/wiki/ATI_Radeon_5870_Eyefinity6_-_Featured_Review_-_Page_6

There's a 12fps increase at 5760x1200 over the 2GB 5970.

http://www.widescreengamingforum.com/wiki/ATI_Radeon_5870_Eyefinity6_-_Featured_Review_-_Page_12

Here it shows that having 2GB vram per gpu provides a substantial performance improvement with 4xAA.

Kinda which they'd test more modern games like BC2 and Metro 2033.