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4850 x2 or 4870 x2 on a single pci-e motherboard?

Last response: in Graphics & Displays
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February 23, 2009 1:40:55 AM

I am kinda confused I am about to buy a 4850 x2 and I have a Intel DG965WH which only has one PCI-e slot and no crossfire/sli support. I am going to upgrade from a old 8800GT.

Will I be able to use both of the 4850's in crossfire mode? Or will my motherboard not allow it?
February 23, 2009 2:26:17 AM

+1 good question ... no idea. I am anxiously awaiting an intelligent response tho ...
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February 23, 2009 5:41:38 AM

You'll be able to use both gpu of 4850x2 or 4870x2. It's meant to do that.
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a c 171 U Graphics card
a c 93 V Motherboard
February 23, 2009 6:20:20 AM

As Hsetir mentioned, you'll be just fine. Thats the point of the x2 and GX2s, they allow SLI/CF to be used on any PCIe motherboard. You'll have some issues if you have one of those weird motherboards where the PCIe 16x slot is only 4x electrical, but other then that you should be good.
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February 23, 2009 10:31:18 AM

I sent a support ticket to sapphire anout the 4850. Ill post there responce when i get
It.
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a c 171 U Graphics card
a c 93 V Motherboard
February 23, 2009 11:07:05 AM

Why post here then? Either listen to us or don't. Thanks for wasting my time.
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a b U Graphics card
February 23, 2009 5:16:01 PM

you only need one PCI-E slot to run dual GPU cards.
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February 23, 2009 5:55:10 PM

It depends on what pci-e your using. If its pci-e 1.0 x16 go with a 4850 . If its pci-e 2.0 go with the 4870x2. This is because there is limited bandwidth when using a pci-e 2.0 card on pci-e1.0 mobo. So don't waste extra money if your socket is pci-e 1.0. 4850 is only $140 on tigerdirect.
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February 23, 2009 11:16:01 PM

4745454b said:
Why post here then? Either listen to us or don't. Thanks for wasting my time.


I asked them because I am looking for the best answer and so far some answers are conflicting. It also seems you have wasted your time because you took the time to complain. Also they haven't gotten back to me yet so at least I have sort of idea of what my purchase is.

Thank you for everyone who took the time to answer.

btw If you value your time please do not reply to this message because I don't wanna hear it.
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February 24, 2009 3:59:39 AM

grpace said:
I am kinda confused I am about to buy a 4850 x2 and I have a Intel DG965WH which only has one PCI-e slot and no crossfire/sli support. I am going to upgrade from a old 8800GT.

Will I be able to use both of the 4850's in crossfire mode? Or will my motherboard not allow it?


To answer what appears to be your topic question 4850x2 or 4870x2, anandtech recently posted a rather nice review.

http://www.anandtech.com/video/showdoc.aspx?i=3517

To answer the question in your OP, either card should work, but with some of the already mentioned caveats.

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a b U Graphics card
a b V Motherboard
February 24, 2009 6:38:21 AM

Conflicting?

Every response has said it will work (because it will).
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February 24, 2009 10:56:26 AM

bustapr said:
It depends on what pci-e your using. If its pci-e 1.0 x16 go with a 4850 . If its pci-e 2.0 go with the 4870x2. This is because there is limited bandwidth when using a pci-e 2.0 card on pci-e1.0 mobo. So don't waste extra money if your socket is pci-e 1.0. 4850 is only $140 on tigerdirect.


Well not really the case look at this pci-e has plenty of bandwidth for that its way ahead of what the games need just like agp was back in the day http://www.tomshardware.com/reviews/pci-express-2.0,191...
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February 24, 2009 11:02:00 AM

Thats pci-e 2.0 though so in a pci-e 1.0 it would run at the pci-e 2.0 x8 speed not much difference there.
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Best solution

February 24, 2009 9:12:27 PM

Wed, 25 Feb 2009 07:11:11 +0800

No problem, have a great day.

Wed, 25 Feb 2009 07:07:10 +0800
Thank you for the information.

Wed, 25 Feb 2009 07:05:55 +0800

So the motherboard does not support CF, but the card can be CF internally so it doesnt matter, once you install this card you will still get CCC to enable CF with in the card.

Tue, 24 Feb 2009 09:42:25 +0800
No it does not support crossfire because it only has one PCI-E slot. So does that mean I will get the same performance as a single 4850?

Tue, 24 Feb 2009 09:31:35 +0800

As far as i know, if the motherboard supports cross fire you will be able to enable cross fire function with 2 of these cards on it.

Mon, 23 Feb 2009 14:38:49 +0800
I am looking to purchase the 4850 x2 2gb card. Will it support crossfire on a Intel DG965WH motherboard which only has one pci-e x16 slot thus meaning it doesn't have crossfire support? When I say crossfire I mean it is using bother the graphics processors. Thank you.
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a c 171 U Graphics card
a c 93 V Motherboard
February 24, 2009 9:47:19 PM

Send a support ticket to Intel, they are the ones that made the board. What do we and Sapphire know?

Btw, don't tell me to stop posting in this thread, I don't want to hear it.

[/sarcasm]
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