I thought I read somewhere that write times for the 128gb was like 4xx while the write times for the 256 GB were 7xx. Also that the ssd used were diff for 128 and 256 . I was just wondering if there were such differences between the 256 and 512
Nope...all of the tested units so far are the 'stock' models, the immediate available units...which are the 256GB PCIe SSD. So far, the general consensus is they'll each be R/W @ 780+Mb/s. The MBA is pioneering (as far as in a notebook) this newly designed storage model, instead of the Blade SSD through SATA, it's direct to the PCI-e pipe. SHould be irrelevant which 'size' of storage module you choose. Now whether or not they use different vendors than Samsung for these units is a different story. IE, if Toshiba or SanDisk or... is involved in
also providing storage, there could be different speeds. That said, they'll all be PCIe SSD modules, so the speed are going to be closer to the same current tested speeds @ about 800 Mb/s...regardless of manufacturer. Possibly faster...the Mac Pro modules will be able to transfer upwards of 1.2Gb/s...same 'idea' with the SSD plumbed directly into the PCI-e pipe.
Depends how the NAND is configured, more chips may mean more bandwidth. Bigger SSDs are often faster for this reason.
Not in the case of the MBA. They should all be configured identically as far as the controller...so this doesn't follow the same rules as a 'traditional' SSD.
The 128GB has the slower write speed. The 256GB and 512GB should be close enough in write speed (if not identical) that you won't notice it while you're using it.
The question you really need to consider is how much space you need for the photos on it, and if you need space for an iTunes library as well.
Where have you seen 128GB speeds? I haven't seen them posted yet, curious if you have a link. Thanks!!
J