11–20 of 32 posts
For example, my 2012 MBP uses a Samsung EVO 960 SSD and yes its super fast.. and I didn't have to pay $4000 for the computer..
Something I noticed that is interesting is the 13" models run 2133MHz LPDDR3 while the 15" models run 2400MHz DDR4. Both are 8th generation Intel's. Does that mean they run different chipsets?
This was a necessary tradeoff in order to offer 32GB RAM in the 15" machines. After years of delays, Intel's chipsets still do not support LPDDR4. It's possible that it's still the same chipset on both machines, though.
Earlier quoted context omitted.
Really? Faster than 2,519MB/s? I thought they were achieving this by ganging together 2 drives via their proprietary T2 chip.
They admit in the article that a lot of this performance could be an illusion caused by the APFS instant cloning feature, which essentially just creates a new directory listing pointing to the existing file when you copy a file to the same volume. A separate copy of the data is only made when you make a change to one of the files.
Also, apple is using the new file system that makes things like copying files more efficient (not sure how exactly), but sounds like the test is going to make the mac look awesome even though many people who pay extra for a 1 TB samsung EVO 960+ SSD are going to be matching apple's performance.. For example, my 2012 MBP uses a Samsung EVO 960 SSD and yes its super fast.. and I didn't have to pay $4000 for the compute…
http://dtrace.org/blogs/ahl/2016/06/19/apfs-part3/
The Mac App Store reviews on the disk speed test tool they are using are abysmal, so I wonder if it's truly testing the disk performance or being fooled by the tricks that APFS is doing.
Earlier quoted context omitted.
This was a necessary tradeoff in order to offer 32GB RAM in the 15" machines. After years of delays, Intel's chipsets still do not support LPDDR4. It's possible that it's still the same chipset on both machines, though.
So the 2400MHz DDR4 is obviously faster because of the increased bus speed right? LP just mean low power.
Hold up, doesn't APFS mean that just copying files is instant because they're not being "physically" copied? Does anyone know if BlackMagic Disk Test actually touches the files?
> 2018 MacBook Pro Has Fastest SSD Ever This title is misleading. I have a faster SSD in my year-old home desktop. They say in the article that they mean the fastest SSD they've ever seen in a production laptop.
No you don’t, that speed is for an OS level copy not the advertised max seq write speed. I have the 960 pro in raid and I don’t get more than 2000-2200 MB/s when copying a files of that size on an actual file system. Based on the copy speed vs advertised speed I would put the max seq write speed of that drive at least in the 3000 MB/s range this is at least as fast as the 970 evo in its largest capacity if not faster…
Also the PM981 is the same tech as used in the 970 EVO. Samsung have also had the SM line previous which was the same tech as used in the PRO line but there doesn't seem to be an SM981 so maybe they are no longer doing OEM MLC?