Please post Sys Profile of nMP 512 & 1TB SSD

[dysert]

I have attached a profile of my 256 SSD that came with my nMP as well as a 512 module I purchased. The 512 appears to be a 2 lane module. Have I properly interpreted the System Profiler results?

 

[OrangeSVTguy]

Have you tried to ran a benchmark like Black Magic? Thinking the 4 lane might be faster no?

 

[kfscoll]

Here's my 512GB SSD. Stupid question, but would the link speed have anything to do with the video cards? I have D700s FWIW.

 

[rw3]

The difference is in the Revision of the SSDs. I have a loaded Late 2013 27" iMac with a 512GB PCIe SSD. It has the same revision as your 512GB, UXM2EA1Q. The 256GB that came with your nMP is UXM8JA1Q.

My best educated guess is that there is a firmware block that keeps some PCIe SSDs from linking at x4.

EDIT: This would also explain why each SSD from each particular model (MacBook Air, rMBP, iMac, nMP) all have different part numbers even if the capacity is the same.

 

[VirtualRain]

Anand clearly indicated in his nMP review that the nMP comes with a x4 SSD unlike the MacBooks...

There’s a single proprietary Apple PCIe SSD connector and module inside the new Mac Pro. The connector looks similar to what’s in the new MacBook Pro but I haven’t verified compatibility. Unlike the new MacBook Pros, the Mac Pro SSDs only ship in a x4 PCIe configuration. The result is faster peak sequential speeds.

FWIW, my stock 1TB SSD in the nMP is x4

 

[rw3]

Anand clearly indicated in his nMP review that the nMP comes with a x4 SSD unlike the MacBooks...



FWIW, my stock 1TB SSD in the nMP is x4

The Late 2013 rMBP 15" has a x4 1TB PCIe SSD.....I've tested one from a customer.

 

[VirtualRain]

The Late 2013 rMBP 15" has a x4 1TB PCIe SSD.....I've tested one from a customer.

Right... In re-reading his statement, it implies the nMP only comes with x4 whereas I suppose the MacBooks were offered with both x2 or x4 SSDs.