It's the fastest consumer drive KitGuru has ever tested - but you have to pay for every bit! Official sequential performance figures for the 1TB drive are 3,500MB/s for reads and 2,700MB/s for writes. The 512GB drive has the same read figure with writes dropping to 2,300MB/s. Random 4K performance is quoted at 15,000 IOPS and 55,000 IOPS for reads and writes respectively at a queue depth of one and using a single thread. At a queue depth of 32 and using 4 threads, the reads and writes are both quoted as 500,000 IOPS. The 512GB drive has the same figures as the 1TB drive with the exception of the QD32 4 thread read figure which drops to 370,000 IOPS.