SSD performance scales somewhat linearly with capacity, and modern 1TB drives are capable of 6+GB/s reads. The 256GB M2 does a measly 1.4GB/s, and from what I'v

SSD performance scales somewhat linearly with capacity, and modern 1TB drives are capable of 6+GB/s reads. The 256GB M2 does a measly 1.4GB/s, and from what I've seen the 1TB is also lackluster at ~5GB/s.