blckgrffn
Diamond Member
Digital Foundry tested the M2 slot. The M2 drive they used works as good if not better than the internal SSD. The test also shows that the internal SSD's write speed is low. It's very much geared toward read which makes sense. Copying a game from Internal -> M2 was way faster than the other way around.
The 12 channel drive hinted that they were spending more on the controller, making it extra wide, so that they could get a lot of read performance without the flash itself being especially fast. That's how I read it, anyway. Interesting that all those channels don't help as much with write throughput, but didn't Sony do something with their file system, like really big pages (I think that is the right term) which might lead to a lot GC having to happen in heavy write scenarios but again giving big chunks of data to be read.
I mean, given what a huge step up the write performance is over any spinning drive and how most data in a console is write once, ready many biasing all performance to read rates and latency makes a lot of sense to me.
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