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MP All Models External TB3 NVMe SSD - only 800 MB/s write speed
- Thread starter funkahdafi
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I have tried several external TB3 NVMe enclosures (YottaMaster, Orico, WavLink, Pluggable, Sabrent) and the slow 800Mbps write speed on the 2TB WD SN750 (similarly on the 2TB Samsung 970 EVO plus ) is the same.
Like I mentioned in my previous post, the slow write speed problem is NOT seen in the 1TB WD SN750. I get over 2300Mbps read/write speed on the 1TB WD SN750. I did not have a 1TB Samsung 970 EVO Plus to test this out.
For 2TB NVMe, I can only get over 2000Mbps read/write speed from a Sabrent Rocket 4.0 NVMe SSD. However, the Sabrent is a PCIe 4.0 which is overkill for external TB3 NVMe enclosure.
I have a Samsung 970 Evo Plus 1TB drive. I bought a WavLink TB3 enclosure and installed 970 Plus into it to use on my M1 MacBook Pro. The best write speed I got is ~1300MB/s, while the read speed is about 2500MB/s. I also tested the enclosure + drive on my ThinkPad X1 Extreme Gen 2 and iMac. All the results are similar. I thought it's the enclosure problem so I returned it to Amazon. Now I read this thread and realized it's most likely the 970 Evo Plus' problem.
May be, though it seems like the problem in this thread has been primarily associated with the 2TB models of the Samsung Evo Plus
I have the same Orico 40Gbps with Samsung 970 Evo Plus 1TB NVMe M2 and I get different write results on my MacBook Pro Intel 16G/500 and my MacBook Pro M1 8GB/500. Anybody an idea why write speed on the Intel is faster than the M1?
And yes it gets hot!
This first result is on my MBP M1
And this is on my MBP Intel
I wish I saw this thread earlier, before I bought a Samsung 970 Evo Plus 1TB with a Wavlink TB3 enclosure! This combination perform very poorly on my MacBook Air M1, exactly like what the op described, 800MB/s write speed. I could get that kind of performance on USB.
Actually, I think it would be faster if you put the Samsung 970 Evo Plus 1TB in a USB enclosure. Even an Intel 660p 2TB in a Orico enclosure using a JMicron JMS583 can do 1040 MB/s Read/Write on my old Mac Pro 2008 using a GC-TITAN RIDGE for USB. Maybe you'll miss the superior Thunderbolt read performance though.
Luckily for me, a friend of mine need a new NVMe, so I am selling mine to him and get a WD SN750 1TB or SanDisk Extreme 1TB.
Do you think this is an issue with the enclosures or an underlying Mac OS issue? Seems to primarily affect M1 Macs.
So one year later or so, the same problem exists. I have since gotten myself a new M1 Macbook Air (in addition to my 2019 iMac) and can report that the problem exists there as well (albeit less drastic). When connecting my external enclosure (Sonnet Echo Express) with the Samsung 970 Evo Plus 2TB to the Macbook Air, I get roughly 1200 MB/s write speed instead of the 850 on the iMac. So it's a bit faster, but obviously still massively capped.
No matter how you twist and turn this, with all the different hardware combos people are reporting the same issue with, this must be a macOS (or Mac hardware) limitation/bug.
Sad.
No matter how you twist and turn this, with all the different hardware combos people are reporting the same issue with, this must be a macOS (or Mac hardware) limitation/bug.
Sad.
Well maybe......but......my startup disk is a 980 EVO Pro (2TB) in an ORICO T3 enclosure. T3ed to 2020 maxed out iMac running OS 10.15.7. write and read speeds 2450 MB/s or thereabouts.
Hi Haddy I'm just about to order the 980 EVO pro 2 TB. I also have the ORICO T3 enclosure. Are your speeds still good. Thanks in advance mate. T
I have an old and newer 1 TB 970 EVO Plus / M1 on Monterey 12.01.
The old writes 850 permanently in Blackmagic and the new 1400, but not over 5 minutes in OWC ENVOI EXPRESS (heat problem > wait). I will try the WD BLACK SN750.
I can not run two OWC SSD's at the same time on the two Thunderbolt on M1 MAC although they are separate controllers ?!
I don't understand this >>> can you explain it to me ?!
The old writes 850 permanently in Blackmagic and the new 1400, but not over 5 minutes in OWC ENVOI EXPRESS (heat problem > wait). I will try the WD BLACK SN750.
I can not run two OWC SSD's at the same time on the two Thunderbolt on M1 MAC although they are separate controllers ?!
I don't understand this >>> can you explain it to me ?!
I don't understand that either. Hope someone else can explain that. I would vote for the WD BLACK SN750 myself. The EVO SSDs are known to have issues with the M1 and/or Thunderbolt. ?
Yes, the EVO obviously have problems with the macOS. No problems with Windows. That is one thing!
The other thing is that it is obviously not possible to connect two OWC Thunderbold disks to the M1. This is obviously only possible with an OWC HUB. This was confirmed.
How this behaves with the new notebooks (M1MAX) I have no information yet.
The other thing is that it is obviously not possible to connect two OWC Thunderbold disks to the M1. This is obviously only possible with an OWC HUB. This was confirmed.
How this behaves with the new notebooks (M1MAX) I have no information yet.
All on OWC Envoi Express M1 MacBook Pro 12.0.1:
The SN750 1121 / 1461 in Black Magic Disk Speed.
But the new 970 (new design in the packaging ) EVO Plus 1404 / 1506. But the EVO slows down at high temperatures.
I use the old EVO in ICY BOX USB 3.2 Thunderbolt -> 692 / 1517 (692 Problem old Version)
USB 3.1 ICY M1 only 3.1 -> 806 / 855
Two Thunderbolt OWC do not work on the M1 but OWC and ICY BOX USB 3.1 on Thunderbolt works.
Apple support is at a loss. It is known that there are problems with powered drives.
But no statement if it would work in general.
Is there any user in the world that works with 2 Tunderbolt Bus Power Driven SSD's without HUB on M1 or M1MAX
<<< ???? ???? >>> ;-)
The SN750 1121 / 1461 in Black Magic Disk Speed.
But the new 970 (new design in the packaging ) EVO Plus 1404 / 1506. But the EVO slows down at high temperatures.
I use the old EVO in ICY BOX USB 3.2 Thunderbolt -> 692 / 1517 (692 Problem old Version)
USB 3.1 ICY M1 only 3.1 -> 806 / 855
Two Thunderbolt OWC do not work on the M1 but OWC and ICY BOX USB 3.1 on Thunderbolt works.
Apple support is at a loss. It is known that there are problems with powered drives.
But no statement if it would work in general.
Is there any user in the world that works with 2 Tunderbolt Bus Power Driven SSD's without HUB on M1 or M1MAX
<<< ???? ???? >>> ;-)