Klevv CRAS C910 2TB SSD Review

1. Introduction2. Klevv CRAS C910 2TB3. Testing Methodology4. CrystalDiskMark5. ATTO Disk Benchmark6. AS SSD7. 128KB Sequential Performance8. 4K Random Read v QD Performance9. 4K Random Write v QD Performance10. 4K 70/30 Mixed Performance11. 4K Random Performance QD1-QD812. Throughput13. PCMark 10 Full System Drive Benchmark14. 3DMark Storage Benchmark 15. Final Fantasy XIV Endwalker Official Benchmark16. Temperatures 17. Real Life File Testing18. Closing Thoughts19. View All Pages

Klevv's CRAS C910 Gen 4 SSD is aimed at the mainstream end of the market coming in four capacities; 500GB, 1TB, 2TB and a flagship 4TB model.

At the heart of the CRAS C910 is a controller we've not seen before, from Realtek, but the drive has also been seen using a more familiar controller from InnoGrit, the IG5220. Realtek's RTS5772DL is a PCIe 4 x4 eight-channel IC which is a DRAM-less design (relying on HMB technology to use system memory for caching duties rather than a dedicated DRAM chip). The controller has an interface speed of up to 1600MT/s which translates in Sequential performance speeds of up to 6GB/s, so it's not a very high-performance drive. For the CRAS C910 Klevv has combined the controller with two packages of Essencore branded (ENFFGP8NC9LR-HL) NAND but, we couldn't find any more information on it other than its 3D TLC NAND.

Klevv rates the maximum Sequential performance of the 2TB CRAS C910 under the maximum speed supported by the controller with reads at up to 5,200MB/s and writes at up to 4,800MB/s. Random 4K performance is quoted as up to 560,000 IOPS for reads and up to 615,000 IOPS for writes.

Using the ATTO benchmark we couldn't quite hit either Sequential maximums with test results of 4,660MB/s for reads and 4,6990MB/s for writes. Switching over to the CrystalDiskMark 8 we could confirm both Sequential figures with test results of 5,262MB/s for reads and 5,048MB/s for writes. Switching over to the compressible data test saw no real difference in the scores so it seems the Realtek controller doesn't have a preference when it comes to the type of data it's being asked to handle.

When it came to random performance we couldn't get close to the official figures with our 4-threaded tests. The peak read figure we achieved was 374,735 IOPS (QD16) with peak writes at 317,299 IOPS, also at QD16. However, switching over to the default Peak Performance Profile in CrystalDiskMark 8 we could confirm the official random read figure and indeed better it by quite a bit with a test result of 620,934 IOPS. Writes on the other hand were still short of the maximum at 612,804 IOPS.

To help keep the CRAS C910 cool, Klevv uses enhanced thermal management, including thermal throttling, and a DIY stick-on thin aluminium heatsink option that is bundled with the drive. The drive did get warm under heavy and prolonged benchmarking but we didn't see any sign of thermal throttling so we have no cause for complaint.

The Klevv CRAS C925 comes with a useful official license for Acronis True Image HD which is downloadable from the Klevv website.

We don't have a UK price or buy link, but the MRSP for the C910 2TB is $91.99. In the US, it is available from Amazon HERE.

Pros

• Reasonable performance.
• Endurance.
• Bundled aluminium heatsink.

Cons

• Write speeds in some benchmark tests.
• DRAM-less design.
• UK availability is scarce.

KitGuru says: Klevv's 2TB CRAS C910 isn't the fastest Gen4 drive we've seen by a long chalk but it has decent all-round performance. Unfortunately, the 2TB Gen4 drive market segment is a very crowded one, but Klevv has given it every chance with some competitive pricing – if you're in the US, at least!

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