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Use PCI-E 2.0 x 16 Graphic card in PCI-E x 16 Motherboard

Last response: in Graphics & Displays
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April 2, 2010 1:13:10 PM

i have Gigabyte GA-E7AUM-DS2H motherboard and it have PCI-E x 16 slot. if i want to buy nvidia GeForce GTX 470 graphic card, this card requires PCI-E 2.0 x 16 slot. Can i able to use this card in my gigabyte motherboard.....
a c 130 U Graphics card
a b V Motherboard
April 2, 2010 1:42:30 PM

I wouldn't. Cards at that level are going to start being bottlenecked by PCI-E 1.0

Not to mention an HD5850 + An OC will tear down the GTX470.
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April 2, 2010 1:45:55 PM

latestyouwant said:
i have Gigabyte GA-E7AUM-DS2H motherboard and it have PCI-E x 16 slot. if i want to buy nvidia GeForce GTX 470 graphic card, this card requires PCI-E 2.0 x 16 slot. Can i able to use this card in my gigabyte motherboard.....


Yes it will work.

PCIe x16 2.0 is just double the bandwidth ofa a normal PCIe x 16

You will be able to play games very well...but considering u have PCIe x16 with half the data flow will throttle your card.

Basically, it will perform at half its potential.

I'd recommend that you get a new motherboard with 2.0 PCIe on it. Core 2 MOBO's are fairly cheap

Hope this helps

Uber
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a c 130 U Graphics card
a b V Motherboard
April 2, 2010 1:47:24 PM

It won't perform at half its potential, but you might lose about 15-20% performance.
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April 2, 2010 2:22:09 PM

thanks @ shadow187 and @ UberGenocide

for your answer...
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a b U Graphics card
April 2, 2010 2:49:54 PM

Not worth thinking about, only begins to show difference at about 4x I believe and even then it is game specific.
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a c 177 U Graphics card
a b V Motherboard
April 2, 2010 3:06:00 PM

@ Latestyouwant: Yes and the performance drop will be very small:

http://www.techpowerup.com/reviews/AMD/HD_5870_PCI-Expr...

And from the Green Team:

http://www.techpowerup.com/reviews/NVIDIA/GTX_480_PCI-E...

Note, those articles use a PCI-E 2.0 MB, even so, at 4x the bandwidth is still only equal to PCI-E 1.0 at 8x!
It is far more likely, given the CPUs that the motherboard can support that that will be the limiting factor, rather than PCI-E bandwidth.
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April 2, 2010 5:16:48 PM

shadow187 said:
It won't perform at half its potential, but you might lose about 15-20% performance.


How do you figure? Half the bandwidth = half the performance...or am i wrong

Please explain

Uber

EDIT: sorry i read it wrong...u lose 15 to 20 percent...not just getting 15 to 20 percent performance
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a b U Graphics card
April 2, 2010 6:39:08 PM

Because at x16 2.0 will not use the full bandwidth.
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a c 177 U Graphics card
a b V Motherboard
April 2, 2010 8:50:04 PM

And would someone please post a sticky on this subject?
Not that anyone will read it ;) 
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