will a pci-e 3.0 graphics card work with pci-e 2.0 x16 slot?

moviac

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Jan 11, 2016
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Hello Every one,
I have dell t3500 workstation with Xeon w3680 but the graphics card is ridiculous.IT has pci-e 2.0 x16 slot can i upgrade the graphics to Radeon r9 280x without any bottleneck or slot or performance issue?
 

d3th5150

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Jul 14, 2013
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Yes, they are backwards compatible.

And the cards should work fine together with no problems.

Edit^ didn't see the part about bottle-necking. But they should still work great together.
 

JWoody

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Nah it wont bottleneck, and yes they are backward compatible, Even a single Titan X on an old PCI-E 1.0 x8 slot wouldnt bottleneck it.

Even 2.0 and 3.0 are More than enough bandwith for single cards 5 years from now provided they were at-least x8.
 

d3th5150

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To add to what this guy said ^. The new USB type c connector actually can transfer over a PCIE x4 bandwidth.

I say this because EVERYBODY has graphic amplifiers that either use proprietary, thunderbolt, or USB type c for the amplifier. And they all work great, even with a titan x in the amplifier.

Makes you wonder why we even have PCIE 3.0 and 2.0 if 1.0 speeds are still great for modern games. lol
 

JWoody

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Typical PC marketing with things like PCI-E and USB, they tend (with most but not all things) to add way more bandwith than nessesary. however its not really a bad thing, cuz that means it will be a Looooooooooong time before they are able to even saturate and old x16 PCI-E 1.0 slot.
 

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