CPU won't let me use PCI-E 3.0!?! Please. HELP! - Intel Core i7-2700K

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Gardnersworld1

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Jan 22, 2013
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Alright so basically I posted a thread on the graphics and displays forums earlier, if you's want to know every intricate detail visit the thread - http://www.tomshardware.co.uk/answers/id-1636487/intel-core-2700k-run-gtx-titan.html#10566612

Anyway I've got a Intel Core i7-2700K, and on the thread I was wondering if that could run a gtx titan - i got some mixed answers. But then someone came along with the answer telling me that it would somewhat bottleneck because the CPU! does not support my MOTHERBOARDS PCI-E 3.0 slot.

To me this did not make sense I thought that would be ran off the motherboard, so basically he said I would only get a PCI-E 2.0 slot benefit sort of thing because the cpu does not have a pci-e controller or something.

So the question is, is this guy right?

Cpu - http://www.amazon.co.uk/Intel-i7-2700K-Processor-HyperThreading-Technology/dp/B005X55OR6/ref=sr_1_1?s=computers&ie=UTF8&qid=1364416200&sr=1-1

Mobo - http://www.amazon.co.uk/gp/product/B005T3TLM6/ref=oh_details_o05_s00_i01?ie=UTF8&psc=1

Setting me straight on this would be appreciated guys. I mean I got that cpu because I thought it would be future proof lol, but apparently if what this guy alleged is true then.. That would suck :(
 
Solution
Sakkura
Here's an article about the impact of PCIe bandwidth for the GTX 680 and AMDs Radeon HD 7970:

http://www.techpowerup.com/reviews/Intel/Ivy_Bridge_PCI-Express_Scaling/23.html

The new PCI-Express 3.0 interface can provide around 1% performance boost for both HD 7970 and GTX 680. While this confirms that both cards provide working support for Gen 3, such a small improvement is clearly not worth worrying about. It certainly does not warrant buying a new processor or motherboard.
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lazyboy947

lazyboy947

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Jun 11, 2012
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yes the cpu needs to be compatible for pci-e 3.0, sandy bridge the 2700k did not have pci-e 3.0 as it was not out and i believe, ivy bridge was the first intel to use it. It is not available on the sandy bridge cpus, and only the updated Z68 boards like urs, to utilize this u will need a ivy bridge cpu.

I know u looked for the details for pci-e 3.0, but the performance gain is minimal, so id just deal with the 2.0 slot. I know u got a titan and want its full power but with a titan are u rlly going to lose that much performance from the pci-e slot?
 
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Sakkura

Sakkura

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Aug 22, 2011
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Yes and no. He's right insofar as the connection will be at PCIe 2.0 bandwidth. However, it won't necessarily bottleneck. At least it isn't likely to be all that much. A GTX 680 sees practically no performance difference between PCIe 3.0 and 2.0. The Titan is of course more powerful, so it might hinder performance a little. But I doubt it would be a major problem, and for all we know it might make practically no difference for the Titan too.
 
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Gardnersworld1

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Jan 22, 2013
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That is what I though lazyboy, but the guy over at the other thread posted a chart - basically it shows I would like 1gh of its memory clock or something. But again thanks for cleaning that one up folks.
 
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Sakkura

Sakkura

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Aug 22, 2011
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37,965
Here's an article about the impact of PCIe bandwidth for the GTX 680 and AMDs Radeon HD 7970:

http://www.techpowerup.com/reviews/Intel/Ivy_Bridge_PCI-Express_Scaling/23.html

The new PCI-Express 3.0 interface can provide around 1% performance boost for both HD 7970 and GTX 680. While this confirms that both cards provide working support for Gen 3, such a small improvement is clearly not worth worrying about. It certainly does not warrant buying a new processor or motherboard.
Click to expand...
 
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Gardnersworld1

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Jan 22, 2013
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Wow, what can i say, thanks for looking into that for me man, that truely has put me at ease lol. However it still it pretty grim that this cpu - http://www.amazon.co.uk/Intel-Generation-i5-3570K-3-40GHz-Technology/dp/B007RUZKK6/ref=sr_1_1?s=computers&ie=UTF8&qid=1364424219&sr=1-1 is better gaming wise and was £150 cheaper than my cpu at the time :( much obliged for finding that article though pal ;)
 
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