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Choosing a graphics card between PCI Express 2.0 vs PCI Express 3.0

Last response: in Graphics & Displays
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March 4, 2013 4:46:20 PM

I just got a new system:
CPU: Intel Quad-Core Q6600 2.4 GHZ
Motherboard: GIGABYTE GA-EP45T-DS3R
Memory: 4GB (2x2GB DDR3)

I'm trying to choose a graphics card for it and I'm a bit confused.
From reading online people are putting in graphic cards that are rated for PCI Express 3.0 in this motherboard. Now the motherboard is PCI Express 2.0.

If I buy a PCIE 3.0 will I just be wasting bandwidth?

Also I don't know what resolutions I'll be running since I'm hoping to buy a new monitor.

Thanks!
RD
a b U Graphics card
a b V Motherboard
March 4, 2013 5:04:44 PM

robohobo said:
I just got a new system:
CPU: Intel Quad-Core Q6600 2.4 GHZ
Motherboard: GIGABYTE GA-EP45T-DS3R
Memory: 4GB (2x2GB DDR3)

I'm trying to choose a graphics card for it and I'm a bit confused.
From reading online people are putting in graphic cards that are rated for PCI Express 3.0 in this motherboard. Now the motherboard is PCI Express 2.0.

If I buy a PCIE 3.0 will I just be wasting bandwidth?

Also I don't know what resolutions I'll be running since I'm hoping to buy a new monitor.

Thanks!
RD


3.0 is backwards compatible, and yes running it in 2.0 mode makes it loose performance, but only in the 1-2% range.

So it's irrelevant.

All you need to worry about is whether your power supply has enough power to run the graphics card you want to get.
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a b U Graphics card
a b V Motherboard
March 4, 2013 5:07:27 PM

Also, nothing today maxes out 2.0's bandwidth

(and that system seems hardly new. you must mean "new to you")
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March 4, 2013 5:27:13 PM

Thanks guys, great info.

I'm pulling my PSU from my old unit 550W so it should be good to go.

Yeah new to me meaning I got it used for like $115.

So it looks like I'll go for something that best fits my budget.
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