Performance differences between PCIe 2.0 and 3.0

[NKato]

January/febuary will have much action in the GPU market. I can't say much due to NDA but you will be impressed, and lower prices too.

I love the old 965s but you will want to upgrade soon. That is a pretty outdated setup now. Even if you go i5 , it would be a decent junp.

I'm going out on a limb and saying this means we're going to see the 390X hit the market in Q1 2015, since nVidia doesn't appear to have any products ready for launch during that time frame.

The 390X is going to completely redefine the GPU market.

 

[Annitias]

I'm going out on a limb and saying this means we're going to see the 390X hit the market in Q1 2015, since nVidia doesn't appear to have any products ready for launch during that time frame.

The 390X is going to completely redefine the GPU market.

I am not authorized to comment on this but hypothetical 290X replacement may indeed be a massive improvement at less than the 980....

 

[ghost53574]

To OP: Doesn't matter enough to make a huge difference to the average user.

This is my board. It has 3 x pcie3.0 (2 can run at full x16 speed) and it's not the newest around. Afaik it's pcie3.0 proper.


update: This is kind of an old article but explain it better than I can.

TL/DR: SandyBridge-E + Intel X79 chipset + AMD HD7000 Series = PCIE3.0 (full speed x16, 8GT/s)

You get what you pay for lol.

 

[GrammarGestapo]

if you don't have a 3.0 motherboard, you need to upgrade. For more reasons than just the performance increase of your GPU.

 

[GrammarGestapo]

I am not authorized to comment on this but hypothetical 290X replacement may indeed be a massive improvement at less than the 980....

sigh, you make me feel bad about buying the 290X. WHY DID I SUCCUMB. DAMN YOU PRICE DROPS AND THE LAW OF DEMAND.

 

[Huegpaynis]

if you don't have a 3.0 motherboard, you need to upgrade. For more reasons than just the performance increase of your GPU.

Maybe, but I'm not gonna, not right now.

 

[dubbzy]

I have a GTX 970 running ina PCIE 2.0 slot. I did some research before and it seems like cards won't be a bottle neck until at least the new series of cards for AMD and Nvidia. My next computer upgrade will probably be a whole new system, but for the time being my i5 2500k and P67 motherboard run everything fine

 

[Annitias]

TL/DR unless you have a 290/x or a 980 you do not NEED 3.0. Those will be bottlenecked on 2.0 slightly. And the new cards will need it on the high end.

 

[o-BHG-o]

Ugh, tired of reading articles about this now. I get the impression that to get anywhere near reaching a bottleneck on pcie3.0 on a 40 lane cpu you would have to delve in to quad crossfire, 4K multi-monitor set-ups. I'm fairly sure the 290x on it's own won't come close and a single one on pcie2.0 x16 should (not 100% sure) be fine.

 

[ghost53574]

Right, one single D-GPU will never (in this decade) use the full bandwidth available on a PCIe 3.0 bus for the average consumer.