Lexar hits 7 GB/s with new M.2 PCIe 4.0 SDD
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wavetrex
That is very interesting.... I wonder what controller it uses, because Phison E16 can only do 5 R 4.4 W
https://www.phison.com/en/technologies/pcie-gen4-awareness/1149-ps5016-e16
nizzen
Only 54MB/s @ 4k random read @ QD=1.
Even the old samsung 950pro is faster
DmitryKo
That would be Silicon Moton SM2264 - that's currently the only PCIe 4.0 capable alternative to Phison PS5018-E18.
SM2264 is rated for 6.5/3.9 GB/s sequential read/write and 700K IOPS.
NewTRUMP Order
I am not asking to be a smart alack, but in the article you say the speed is faster than what we need in real life. What speed do we need?
nosirrahx
Was coming here to say the same thing. If they could pull off even 100MB/s on 4KQ1T1 this would be a pretty cool advancement.
nosirrahx
If you have ever used a 905P as an OS drive it is pretty obvious that we need to replace NAND with a new storage tech that has far lower latency.
If you were to have an OS drive with only 3000MB/s sequential read but 300MB/s 4KQ1T1 random read it would feel far faster than the drive in this article.
schmidtbag
A drive like this could be great for high-speed cameras. They need all the write speed they can get. Otherwise, not much else has a use for something like this.
maddog55
Been using a Samsung 960 Evo as a Win10 boot drive and that's fast enuff for moi !.
nevcairiel
Thats a problem with all this PCIe 4.0 SSD hype. Everyone boasting about sequential speeds, but for most users those are already quite ample. They should work on improving random access at low QD.
anticupidon
Let's see the bigger picture, the PCI-E 4.0 and those controllers are paving the way for future storage solutions and breakthroughs.
Anyone remembers the first commercial SSD?
Comparing the two, you see how things moved and how fast.
In the next 5-10 years, who knows what will happen!
Mesab67
As others have noted, manufacturers badly need focus on getting significantly faster lower QD speeds - and at affordable prices.
Srsbsns
Indeed that is bad. Maybe it will get better. My Sabrent Rocket Gen4 does 62MB
schmidtbag
Although I don't disagree, more often than not, I've found the disk isn't much of a bottleneck when it comes to random reads. I'm still happy with SATAIII to store games because going faster hardly improves load times. Sure, you might see around a 10-15% improvement going from a good SATA drive to NVMe, but to me, the price difference isn't worth it.
Dazz
It's a controller limitation of it's 1ms response time nothing to do with bandwidth which is why Intel Optane is faster even on PCIe 3.0x 2x and only 1GB/sec transfer speeds which has access to the memory in the micro seconds. For Intel platforms, but apparently there is a work around for AMD platforms but you need a 3rd Party application so you can tier storage the Optane with a Normal SSD
[youtube=rWXBo0bb_dU]
Astyanax
the 3rd party application is FREE on amd platforms btw.
pegasus1
Moving my games from an SSD to Gen 4 NVMe has seen data heavy games launch way way quicker. The DCS flight Sim both loads and gets into game significantly quicker, that game has a ton of data to load and on SSD it wouldnt be uncommon for a mission to take up to 60 seconds from mission launch to being in the cockpit, on my Gen 4 drive its never more that 20 seconds like for like missions.
NewTRUMP Order
So what is the percentage of need vs want? What I mean is sequential read/write speeds have advanced to screaming fast levels, but the 4kq random read/write speeds have lagged behind in speed increase. But what is the difference in need for sequential r/w speeds vs 4kq random 50/50, 75/25, 80/20? Need is always the driving force for advancement in technology. So how badly do we need faster 4kq?
pegasus1
From who's perspective? nobody needs the latest iPhone but clever marketing/peer pressure lead to one becoming a must have. Consumer 'want' turns into industry 'need'.
nosirrahx
No, perception of need is, especially if the cost of giving people what they think they need is less than giving them what they actually need.
This isn't a matter of opinion here.
Your computer almost never moves around massive files. Your computer is constantly doing IO with small files.
Developing storage with very fast 4KQ1T1 is massively expensive and still a super immature technology (Optane). I use Optane in all of my desktop systems for OS and its f-ing amazing. Its also amazingly expensive and the drives are kind of small so .......... here, have some massive sequential speed instead, your welcome.
NewTRUMP Order
That's a great college course quote in economics, but I am talking specifically about ssd speeds.
