Ludicrous Speed 1Tb SSD in new rMBP's

[catean]

does that mean the 128gb is slower?

There will be no difference as all SSDs in early 2015 macs are 4-lane PCIe. The only difference could be that the 128GB will fill up faster, and full SSDs are running slower compared to as SSD with 20-30% free space.

 

[totten76]

There will be no difference as all SSDs in early 2015 macs are 4-lane PCIe. The only difference could be that the 128GB will fill up faster, and full SSDs are running slower compared to as SSD with 20-30% free space.

I thought I saw on another thread speed tests between the 128-256-512 and they got faster as the size increased.

 

[yjchua95]

There will be no difference as all SSDs in early 2015 macs are 4-lane PCIe. The only difference could be that the 128GB will fill up faster, and full SSDs are running slower compared to as SSD with 20-30% free space.

There is a difference.

The 128GB clocks in with around 650-700 MB/s writes and 1000MB/s reads.

The 256GB clocks in with around 1100MB/s writes and reads.

The 512GB clocks in with around 1400MB/s writes and reads. The 1TB presumably performs the same, if not better.

But that's about it. In real world difference, it's practically nil.

 

[newellj]

There will be no difference as all SSDs in early 2015 macs are 4-lane PCIe. The only difference could be that the 128GB will fill up faster, and full SSDs are running slower compared to as SSD with 20-30% free space.

I haven't followed the updates in the rMBP but the 11" MBA did *not* get 4-lane PCI-e this spring.

 

[vladid]

Just benched my 5K iMac with the 1TB SSD and was wowed by its speed. Same model, APPLE SSD SM1024G.