For full details of how we conduct our Iometer tests, please refer to this article.
Most modern SATA drives have more or less the same sequential read performance and the 2TB Pro and EVO are no exceptions. Samsung drives do consume quite a bit of power under sequential read operations, but fortunately the 2TB EVO shows efficiency gains over the 1TB model.
Nothing special in the scaling graphs -- both the Pro and EVO reach their maximum at QD2.
Sequential Write Performance
Once again, the performance of 2TB models is equal to 1TB with the EVO having increased power efficiency.
Queue depth scaling is, unsurprisingly, similar to the smaller capacities.