NVIDIA: PCI Express 4.0 not necessary for RTX 30 series

Posted on Friday, September 04 2020 @ 12:27 CEST by Thomas De Maesschalck
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In a Q&A session on Reddit, NVIDIA representatives answered a lot of questions about Ampere. VideoCardz has an overview of some of the more interesting ones. In case you're wondering whether PCI Express 4.0 is a must for the new RTX 30 series, NVIDIA doesn't seem to think so. Basically, the performance difference is expected to be less than a few percent. So yes, a PCI Express 4.0 system will be a little bit faster, but PCI Express 3.0 is still good enough for Ampere.
Will PCIe 3.0 bottleneck the RTX 3090? Concerned because my Intel system does not support 4.0.

Tony Tamasi – System performance is impacted by many factors and the impact varies between applications. The impact is typically less than a few percent going from a x16 PCIE 4.0 to x16 PCIE 3.0. CPU selection often has a larger impact on performance.We look forward to new platforms that can fully take advantage of Gen4 capabilities for potential performance increases.
There was also a question about the new cooler design, and how silent it is:
iCinn – Any idea if the dual airflow design is going to be messed up for inverted cases? More than previous designs? Seems like it would blow it down on the CPU. But the CPU cooler would still blow it out the case. Maybe it’s not so bad.

Second question. 10x quieter than the Titan for the 3090 is more or less quieter than a 2080 Super (Evga ultra fx for example)?

[Qi Lin] u/iCinn The new flow through cooling design will work great as long as chassis fans are configured to bring fresh air to the GPU, and then move the air that flows through the GPU out of the chassis. It does not matter if the chassis is inverted.

The Founders Edition RTX 3090 is quieter than both the Titan RTX and the Founders Edition RTX 2080 Super. We haven’t tested it against specific partner designs, but I think you’ll be impressed with what you hear… or rather, don’t hear. :-)


About the Author

Thomas De Maesschalck

Thomas has been messing with computer since early childhood and firmly believes the Internet is the best thing since sliced bread. Enjoys playing with new tech, is fascinated by science, and passionate about financial markets. When not behind a computer, he can be found with running shoes on or lifting heavy weights in the weight room.



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