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![]() SSDs that utilize a PCIe 4.0 interface will load applications and games quicker, and if your operating system is installed on one, you’ll see boot rates go up too. If you’re looking to use a lot of cloud-based resources, or if you’re doing input/output-intensive work with local applications, you’ll see better performance with PCIe 4.0 than you would with a 3.0 interface. They’re quicker than any PCIe 3.0 drive and will make large file transfers for such things as video editing lightning fast.” A recent PC Gamer story heaped the highest praise on the standard, saying, “If you want the absolute fastest drives available, then PCIe 4.0 SSDs are the way to go. Why does this matter? The faster the throughput, the better performance you’ll see from peripherals such as solid state drives (SSDs). PCIe 4.0 doubles the 3.0 throughput rate per lane, giving users a transfer rate of up to 64GB/s. ![]() PCIe 3.0’s throughput is 1GB per second per lane, providing an overall data transfer rate or bandwidth of up to 32GB/s total. PCIe speed gets an upgrade in the newer iteration. The biggest change between PCIe 3.0 and PCIe 4.0 is the data transfer rate, or throughput. What’s the difference between PCIe 3.0 and PCIe 4.0? Likewise, you can put a PCIe 4.0 device into a PCIe 3.0 slot, and it will work, albeit at PCIe 3.0 speeds. You’ll be able to do more with less in this case, since a PCIe 4.0 x8 slot can handle almost exactly what a PCIe 3.0 x16 slot can currently handle.Īnother helpful aspect of PCIe devices is that they are backward and downward compatible, so a PCIe 2.0 x2 will still work with a PCIe 4.0 x8 interface. If your PCIe interface is a PCIe 4.0 x8, that means it can handle PCIe 1.0, 2.0, 3.0 and 4.0 devices with up to eight different lanes. One side of the lane sends data, and the other side receives it. These designations indicate that the cards have a corresponding number of slots that function as lanes for data to travel to and from the peripheral. They are available in five different types of cards that fit into the motherboard: x1, x2, x4, x8 and x16. What is PCIe?Īt its most basic, PCIe is an interface that lets you connect high-speed components - such as add-on chips, memory, graphics cards and storage-to your motherboard. In light of this technology upgrade, you may be wondering, “What does PCIe do, and do I need to upgrade my devices to PCIe 4.0?” Because both the transfer rate and bandwidth doubled between PCIe 3.0 and PCIe 4.0, you’ll probably want to give the new standard a look, especially since we’re finally seeing PCIe 4.0 support from chip vendors. The technology has quickly become mainstream, with more and more people shifting to products that support this newest iteration, such as Samsung 990 PRO. In 2017, PCI-SIG announced the arrival of peripheral component interconnect express (PCIe) 4.0, but products that support this standard didn’t officially hit the shelves until last year.
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