Buying ASUS Radeon HD 6870 913MHZ 1GB

grub25

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Sep 15, 2010
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Hi guys,

I'm planning to buy the Asus Radeon 6870,

I am just wondering will my pc be compatible with it?

Here are my specs

Windows XP (regular)
Cooler Master 750W GX PSU
Antec Twelve Hundred Mid Tower Gamer Case
4 GB 2x2 DDR
Asus P5K
Quad Core 2.4 ghz



Will my motherboard be able to run it? The Mother board is pretty old... will it be compatible?

The store owner also said that the 6870 is VERY BIG, how big is it exactly I own a Antec Twelve Hundred Mid Tower Gamer Case.

Does the 6870 run hot? Is my power supply enough?

Thanks guys
 
Solution
You'll be fine with the PCI-E 1.x board. The 6870 isn't powerful enough to fully saturate the bandwidth of your slot. Only the really high end cards lose any performance with the 1.x slot, and even then it is a very small performance hit (3 to 5%). You won't see a serious bottleneck from the PCI-E 1.x slot unless you try to run a dual GPU card in the slot (Radeon HD 6990, 6870x2 or GTX 590)

borisof007

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Mar 16, 2010
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If you have an Antec 1200, you should be fine on size.

Also, that motherboard does support PCI-Express, I just can't figure out if it's PCI-E 1.0 or 2.0.

The 6870 is a PCI-E 2.1 card, which in some cases has had issues with PCI-E 1.0 slots, however it should be fine.
 

funguseater

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Hi Grub, your motherboard only runs PCI-E 1.1 not 2.1 so you only get half of the bandwidth to your graphics card, and yes the 5770 was 2.0. They will run at PCI-E 1.1 speeds but you might want to consider a motherboard upgrade intead of the video card that you cannot run at full potential.

Picking up a cheap P67 motherboard and an i5 2500k would be a much better investment, then you can run your 5770 as it should be ( I still game on my 5750 )

Just a thought though... Have a great one !!!
 

grub25

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Sep 15, 2010
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Hmm so if i buy a new 6870 without changing my motherboard it would run half as strong as it would with a 2.0 mobo?

Can anyone else confirm this?

I would still be able to play games in max right?
 
You'll be fine with the PCI-E 1.x board. The 6870 isn't powerful enough to fully saturate the bandwidth of your slot. Only the really high end cards lose any performance with the 1.x slot, and even then it is a very small performance hit (3 to 5%). You won't see a serious bottleneck from the PCI-E 1.x slot unless you try to run a dual GPU card in the slot (Radeon HD 6990, 6870x2 or GTX 590)
 
Solution