Intel quote official Sequential figures for the 512GB H10 as up to 2,300MB/s for reads and up to 1,300MB/s for writes. As you can see from results graph according to the ATTO and AS SSD benchmarks, the H10 doesn’t get anywhere close to either figure. We ran these tests many times to ensure that that they were recognised by the cache.
The low scores of both these benchmarks is down to them not recognising the two parts of the H10 as a complete drive. CrystalDiskMark has no such problem as you can see from the Sequential scores for the drive, with reads at 2,485.6MB/s, faster than the official number and writes at 1,231.8MB/s, which is just below the maximum official figure.