Emran003 wrote:
Is it really true that mabook air M1 is faster than M2?
I don't believe that the M2 processor is slower than the M1 processor. But the 256 GB SSD on the M2 MacBook Air is reportedly slower than the 256 GB SSD on the M1 MacBook Air.
Here's how 256 GB SSDs are reportedly implemented on these machines:
- M1 MacBook Air - two 128 GB flash chips
- M2 MacBook Air – one 256 GB flash chip
On a M1 MacBook Air with a 256 GB SSD, the processor has the opportunity to access both chips simultaneously. On a M2 MacBook Air with a 256 GB SSD, everything has to go through a single chip.
If I remember correctly, the "slow" 256 GB SSD on the M2 MacBook Airs still benchmarks as being faster than any USB 3.0 / SATA SSD can run. It just doesn't hit the same level as a Thunderbolt 3 / NVMe SSD or as most internal SSDs.
If you order a M2 MacBook Air with 512 GB of storage, I believe that you get two 256 GB flash chips. This allows the processor to pull the "access both chips simultaneously" trick. So ordering at least 512 GB of SSD storage is one way to get a "fast" SSD. If you're going to be shooting a lot of large videos and copying them back and forth between the internal SSD and external Thunderbolt 3 SSDs – the sort of application where you'd really notice the SSD speed the most – you're going to want 512 GB (or more) of storage anyway. Video eats storage space like it was cotton candy.