![]() Here, the sequential read result scales to pretty much exactly 2x as expected from RAID0 (single Optane SEQ1MQ8T1 read result a little above 2700 MB/s, forgot to take a screenshot). I then verified that the CPU, the motherboard, Windows or CrystalDiskMark isn't limiting the read performance by connecting two Intel Optane 905P 480 GB SSDs to the very same PCIe interfaces and configured the drives as an AMD RAID0 array with the exact same settings: After enabling the AMD NVMe RAID feature in the UEFI and configuring the drives as a RAID0 array (256 kB stripe size, Read cache On) you get results like this:Īs you can see the sequential read result is very weak (expected between 5500-6000 MB/s) compared to a single drive. In non-NVMe RAID operation the SSDs work fine with the expected full performance, even if you test them at the same time so there is no PCIe bandwith limit: 2 SSDs are connected to an X570 chipset motherboard, one directly to CPU PCIe lanes, the second one gets its PCIe lanes through the X570 chipset. the full detailed forum thread there) can confirm the issue so a personal user configuration error seems unlikely at this point. Its write result of 5,862MB/s is the fourth-fastest we've seen behind Corsair's MP600 PRO (5,888MB/s), the 4TB version of Sabrent's Rocket 4 Plus drive (5,877MB/s) and MSI's Spatium M480 (5,864MB/s).I've found a general motherboard manufacturer-independent compatibility issue with the combination of Intel DC P45x0 U.2 4TB SSDs (tested models P4500 and P4510 so far) and the AMD NVMe RAID feature with X570 chipsets.Ī third party (Wendell from Level1Techs, cp. Using the Real World default profile sees the KC3000 produce the best read result, 4,533MB/s, we've seen to date for a Gen4 drive in this test. However both of these a well short of the official 1,000,000 IOPS maximum figures for both. ![]() The best 4K random figures we saw was when testing the drive with the Peak Performance profile, with the drive producing a peak of 668,752 IOPS with writes at 548,450 IOPS. The fastest read test result, 7,400MB/s, confirms the official figure while the best write figure of 6,919MB/s isn't that far short of the official maximum. Kingston rate the Sequential performance of the KC3000 as up to 7,000MB/s for both reads and writes. ![]() When it comes to the 4K QD32 T16 test, the KC3000 sits in the top position with a read result of 668,752 IOPS with writes at 548,450 IOPS. Switching over to the Peak Performance test profile we see the drive in second place in the results chart behind Patriot's Viper VP4300 drive with its read score of 7,384MB/s. When it comes to the default Sequential test in CrystalDiskMark 8, the Kingston KC3000 has the fourth-best read figure (7,362MB/s) but its write result of 6,916MB/s is the fastest we've seen to date for a consumer Gen4 drive. Its read score of 83.49MB/s is the third-fastest we've seen to date for a consumer Gen4 drive but the write score of 251.49MB/s is not quite as impressive.Ĭomparing the benchmark result screens we can see that the Phison E18 controller that powers the Kingston KC3000 is much more efficient when reading compressible sequential and especially 4K random data at a queue depth of 1. Kingston's KC3000 does pretty well in the CrystalDiskMark 8 4K QD1 single thread test. CrystalDiskMark is a useful benchmark to measure theoretical performance levels of hard drives and SSDs.
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