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Discussion in 'MacBook Pro' started by kfmfe04, Aug 17, 2014.
Any differences between the 256GB, 512GB, 1TB versions?
Generally, the larger the faster.
The 256 is around 700 MB/S and the 1TB is close to 1000
All speeds in MB/s, written as read/write:
SanDisk SD0256DF - 700/550
Samsung SM0256F - 720/670
256GB is a lottery between these two brands.
512GB Samsung SM0512F - 750/720
1TB Samsung SM1024F - 1031/990
512GB and 1TB are Samsung-only.
1TB is the fastest, because it uses a 4-lane PCIe channel. All other capacities only use a 2-lane PCIe channel.
Awesome, 1TB a sec - very impressive. Where did you get this info, any video speed test to show it in action.
Unless it's from a Mac Pro in which all of them are 4-lane.
Yup, the ones in the nMP are all Samsung variants with 4-lane channels.
This 1TB speed is from my own rMBP.
ty for the info - as Apple charges quite a lot for the 1TB upgrade, I think I may go for the 256GB and upgrade to a 4-lane 1TB 2-3 years down the line.
Maybe by then, >1TB PCIe will be available (at a reasonable price).
How about a 512GB?
I have a 512GB in my late-2013 27" iMac and have not noticed any difference with the 1TB in my late-2013 15" rMBP.
Someone would have to make an SSD that worked in the new rMBP. Currently there is no upgrade path, you should buy what you will need for as long as you plan on owning the computer.
I agree that there is a small probability that for the next five years no one will manufacture a PCIe SSD upgrade which will be compatible with the rmbp, but I'm willing to make the bet that they will come out, and prices per capacity will continue to fall.
In fact, I think it is more than likely that within the next five years, we'll see >1TB PCIe SSDs in a form factor that will fit inside a rmbp.
What if I'm wrong? Then I will have to live with 256GB and stream the rest of ac WIFI or buy an external SSD and go through USB3 or perhaps FW. No biggie.
The alternative is to pay an extra $300/$800 + tax now for a 500GB or 1TB upgrade. Note that $800 is almost the price of a mba!
Others may follow your suggestion, but I think I will bet on having the option to upgrade more cheaply in the future, as I have no immediate needs for that much capacity - it's a luxury, not a necessity (right now) for me.
The 1TB SSD rules.
I was so glad to upgrade from the 756GB SATA one in the 2012 rMBP.
thanks - in your signature i see you have 2013.
is this from latest 2014 15" with 1TB SSD?
1TB MBPR 15" Mid 2014
this is epic.
i'm getting one. the SSD speeds increase itself is worthy.
Dramatic Drop in Write Speed!
I've just got my Retina 2014 15" with 1TB... I ran the Blackmagic Speed Test before I migrated my data from my old machine and it was fine, Write Speed in excess of 1,000MB/s but now (with 400GB in use) it's dropped and seems capped at 465-480 - It's not going any faster but the Read Speed seems fine....
Has anyone experienced this? Or know what the cause could be?
Not giving TRIM
a chance to clean things up. Leave it for a few hours on overnight and check in the morning...
I am thinking of upgrading my SM0512F to the new 960 from Samsung. Anyone here done this?