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Fast PCIe 5.0 SSD prototype hits sequential read speeds of 14,000 MB/s
- nynx 5y agoIt looks like this isn’t as fast as the theoretical top PCIe 4.0 performance?
- magicalhippo 5y agoM.2 slots are x4, and going by the table on Wikipedia[1], that equates to about 7.8GB/s for PCIe 4.0. Of course x8 could do it, but that would be awkward. From the table we can also see the prototype SSD hitting nearly 90% of the 5.0 max speed. [1]: https://en.wikipedia.org/wiki/PCI_Express#History_and_revisions https://en.wikipedia.org/wiki/PCI_Express#History_and_revisi...
- wtallis 5y agoM.2 is no longer used for enterprise drives like this. This prototype and the current model it's being compared against are 2.5" drives using the U.3 connector, and the power consumption is well beyond what the small M.2 form factor can handle. But you're correct that it's a PCIe x4 link, and that's what determines how much performance the rest of the SSD is designed to provide.
- magicalhippo 5y agoGood catch, I assumed since it was a site named "noteboot check" that reported on it and they didn't specifically mention enterprise that it would be a high-performance enthusiast-level drive.
- yread 5y agoThey do all kinds of other stuff nowadays. First they added desktops than smartphones and now they review even vacuum cleaners.
- 10000truths 5y agoThis article makes no mention of sustained read/write speeds. Any SSD manufacturer can achieve large IOPS in a benchmark that doesn't exhaust the DRAM cache.
- sekh60 5y agoI really hate how review sites never mention sustained read/write speeds. I don't care if I can burst that much, I need sustained.
- zucker42 5y agoTom's Hardware and Anandtech both have sustained benchmarks for the SSDs they test. Which review sites are you talking about?
- tyingq 5y agoThe one linked in this story?
- zamadatix 5y agoNotebookCheck doesn't do SSD reviews, this story is under the news portion of the site hence the complete lack of any information you'd find on a review site.
- zucker42 5y agoPredictably, notebookcheck does not have sustained numbers when they're reporting on company claims about a prototype.
- wmf 5y agoThis is a server SSD so the specs are sustained.
- deleted 5y ago[deleted]
- rektide 5y agodual channel ddr3-1866 is 14900MB/s, only a little faster.
- rasz 5y agoRam still has 3-4 orders of magnitude faster access time.
- rektide 5y agothe fl6 low latency high endurance drive they mentioned here tries to shave off most of an order of magnitude off the access time.
- est31 5y agoYeah but RAM has next to no wear while SSDs have quite a lot of it.
- ac29 5y agoPresumably many if not most systems with PCIe5 will also have DDR5 though, so thats an odd comparison.
- ksec 5y agoThe most impressive thing isn't the raw Seq Read speed. But further reduction in latency from 90us to 70us and ~80% increase Random Read IOPS. PCI-E 6.0 will be ratified in the coming weeks. So we could see a 28GB/s SSD by 2023.
- MrFoof 5y agoLatency is what makes Optane impressive. Queue depth 1 is where you still feel latency. When you read a file… that points to other files to read… that points to other files to read… and so on. The really staggering comparative example of this is launching something like 20 beefy desktop applications at the same time. Even though it’s sequential throughput is only 40% at best of other competitors, it’s where Optane blows the absolute doors off everything else. When SSDs get to sub-10us latency, that’s when it’s really party time.
- mastax 5y agoYeah, I have a midrange NVMe SSD for my root but I have some Optane 905p drives sitting around. The Sequential write speeds were not impressive, but the latency and IOPS were good. I installed Ubuntu on one and running `apt upgrade` was so incredibly fast it was impressive.
- GrayShade 5y agoIt's good to know there's actually some hardware on which apt is not dog-slow.