Will it be possible to do 2x4870x2 rig?

Gurid

so
Can a computer do a Crossfire of 2x 4870x2 ?
And how will it preform?
Is it possible from the drivers?
And what kind of PSU and CPU will you need to drive it ?
And how much will it improve ?

Lowteckh · 07-30-2008, 09:36 | posts: 156

Call CrossFireX
Refer to http://www.legitreviews.com/article/593/1/
As for performance, don't bother unless you have higher than 1920*1200 resolution or need a big ego.

Add: http://www.tomshardware.com/cn/237,news-237.html

Gurid · 07-30-2008, 09:38 | posts: 152 | Location: Israel

Quote:

Originally Posted by Lowteckh

Call CrossFireX
Refer to http://www.legitreviews.com/article/593/1/
As for performance, don't bother unless you have higher than 1920*1200 resolution or need a big ego.

Add: http://www.tomshardware.com/cn/237,news-237.html

I am talking about 4870x2 in crossfire
Not the 3870

roguesn1per · 07-30-2008, 09:53 | posts: 9,514 | Location: Aussie Perth WA

Its the same thing
3870x2 and 4870x2 are basicly the same

MadGizmo · 07-30-2008, 12:36 | posts: 1,135

Quote:

Originally Posted by roguesn1per

Its the same thing
3870x2 and 4870x2 are basicly the same

I wished they were. But they are not. A 3870X2 is a nice card, but doesn't come near the 4870X2 within a mile.

You can CF a dual 4870X2. You'll need a very good and large PSU. It helps if you have a very fast CPU and it will do best if you are playing at 1600*1200 or larger.

Mochen · 07-30-2008, 13:22 | posts: 400 | Location: England/China

Quote:

Originally Posted by roguesn1per

Its the same thing
3870x2 and 4870x2 are basicly the same

Same concept yes, but performance-wise they are very different.

crossfireX 4870x2's will work, although I'm not sure it will scale very well as the driver support is not quite there yet

Frenchlick · 07-30-2008, 14:01 | posts: 267 | Location: Perth Australia

Bit hard for driver support to be here when the card isn't even out yet. I'm sure the next ATI Cats will come out around the same time as the 4870x2s mid August or when ever. ( In OZ anyway) If they are already out elsewhere let me know lol cos I'll order one.

Mochen · 07-30-2008, 14:03 | posts: 400 | Location: England/China

Quote:

Originally Posted by Frenchlick

Bit hard for driver support to be here when the card isn't even out yet. I'm sure the next ATI Cats will come out around the same time as the 4870x2s mid August or when ever. ( In OZ anyway) If they are already out elsewhere let me know lol cos I'll order one.

Well, quadfire 4870 driver support has a long way to go in terms of scaling. And I assume crossfire 4870x2 would be a similar thing

Valuga · 07-30-2008, 14:07 | posts: 1,580 | Location: Finland

why not 4-way CF?? xD

Yep it will be posible but theres no reason to... now

Frenchlick · 07-30-2008, 14:08 | posts: 267 | Location: Perth Australia

Your totally right about the scaling. Doesn't matter which way you slice it 3 x 280gtx or 2 x 3870x2 or when they come out 2 x 4870x2 none of it really scales as good as we'd expect or like for the money we spend, but I don't think it will improve allot for sometime either.

Iarwain · 07-30-2008, 15:43 | posts: 3,048

I doubt it will ever scale well enough to warrant 4GPUs. I mean, games will have to be specifically designed to allocate each GPU want it wants it to do. You have to get beyond driver level at that point, I think, because the driver can only do so much without direct instruction from the game or application.

Similarly to how windows tries to use a quad core, it can do it well for multitasking, but in a game without specific quad or dual core optimizations, it won't use all of every core, even if it needs to. The game has to tell it to.

roguesn1per · 07-30-2008, 15:52 | posts: 9,514 | Location: Aussie Perth WA

Why the hell did you think i meant performance??

I meant Crossfire as the Thread maker was asking....

DSK · *Last edited by DSK; 07-30-2008 at 17:24.*

Will it be possible to do 2x4870x2 rig?
the answer is yes

Can a computer do a Crossfire of 2x 4870x2 ? depends on the motherboard you would need a p35/p45/x38/x48 base motherboard to support it

And how will it preform? it will perform like a 4870x2 times by 2 or like 4 4870s (roughly)

Is it possible from the drivers? when ATI make support for it then yes its possible

And what kind of PSU and CPU will you need to drive it ? well to run it i recommend an intel core 2 Q9450/E8400 or higher

And how much will it improve ? improve on what ? ....put it this way IT WILL OWN ALL GPUS SETUPS @ THE BANG PER BUCK RATIO

roguesn1per · 07-30-2008, 18:23 | posts: 9,514 | Location: Aussie Perth WA

No it wont own all GPUS.

Going from 1 4870x2 to 2 4870x2 wont give much if any performance increase.

A gtx280 SLI will still beat it.

MadGizmo · 07-30-2008, 18:33 | posts: 1,135

Quote:

Originally Posted by kylzer

depends on the motherboard you would need a p35/p45/x38/x48 base motherboard to support it

If the OP wants an AMD CPU there are also AMD chipsets available. But I doubt if even the 9950 will be fast enough to warrant two 4870X2s.

DSK · 07-30-2008, 18:48 | posts: 17,984 | Location: Coldwells,UK

Quote:

Originally Posted by roguesn1per

No it wont own all GPUS.

Going from 1 4870x2 to 2 4870x2 wont give much if any performance increase.

A gtx280 SLI will still beat it.

Sorry..... read what i typed again then get back to me......

roguesn1per · 07-30-2008, 18:51 | posts: 9,514 | Location: Aussie Perth WA

bang per buck???

your kidding?

It will be more than a GTX280 Price wise, And you will be getting 2 of them...With the second one basiclly have a nill effect on the FPS, if not a Negative FPS..

To me...thats not bang per buck.

Valuga · 07-30-2008, 19:35 | posts: 1,580 | Location: Finland

more the 2 GPU = Profesional use only ....

Frenchlick · *Last edited by Frenchlick; 07-31-2008 at 00:19.*

Rogue is right, quadfire at this stage is pretty much only for benching barely any games if any take advantage of it and if they do the scaling is terrible. Hence why I'm not going quadfire this time, but I'll be doing tri a 4870 with a 4870x2. It was the sweet spot with the 3870s where there was next to no gain using 4gpus over 3 other than in 3dmark. I think You'll also find a 4870x2 with a 4870 in xfire will give similar if not better performance than tri 280gtxs and cost less. I think the 4870x2s will probably start at around $550-$650 in OZ depending on the brand and where you get it from. Allot cheaper than the 280s when they first come out lol. Then after a 2-3 months you'll probably be able to pick em up for less than $500, similar to how the 3870x2 pricing went.

If you don't already know of it you should check out this site Rogue it's great
http://www.overclockers.com.au/

weston · 07-31-2008, 03:21 | posts: 2,765 | Location: U.S.

in games that support quad crossfire, the 4870X2 x 2... will be the fastest performing system over the GTX280 tri sli. Not many games will support that though. The 4870X2 is only marginally slower than GTX280 SLI though just in itself. It looked like from about 10-15% slower at worst to even a little faster at best in the guru3D review. Tri crossfire with 3 4870's might be a little better per dollar than two 4870X2's and will be close in performance to tri-sli 280's