Kingston rates the Sequential performance of the 2TB XS1000 as up to 1,050MB/s for reads and up to 1,000MB/s for writes. In our throughput tests, the drive didn't quite hit those official maximums with a tested best-read figure of 952.33MB/s (8MB) with writes at 875.93MB/s (8MB). Although the tested read/write figures are shy of the official ratings, the drive still offers strong performance.
In the read-throughput test, the drive peaked at the 8MB block mark at 952.53MB/s before dropping back slightly to finish the test run at 945.04MB/s.
In the write throughput test, the Kingston XS1000 peaked at the same 8MB mark as the read test, with a figure of 875.93MB/s. Again this was short of the official maximum figure.