Iometer – Maximum IOPS
Version and / or Patch Used: Iometer 2014
We use Iometer to measure high queue depth performance. (No Partition)
Max IOPS Read
Max IOPS Write
With our configuration, we are able to exceed SanDisk's 95K maximum read IOPS specification. We are not able to achieve SanDisk's 75K maximum write IOPS specification, falling short by roughly 10K IOPS. We are not sure how SanDisk arrived at their 75K 4K random write specification. However, we are very certain that they did not run their test for a full 30 seconds, which apparently exceeds the drive's nCache 2.0 capacity.
Iometer – Disk Response
Version and / or Patch Used: Iometer 2014
We use Iometer to measure disk response times. Disk response times are measured at an industry accepted standard of 4K QD1 for both write and read. Each test runs twice for 30 seconds consecutively, with a 5-second ramp-up before each test. We partition the drive/array as a secondary device for this testing.
Avg. Write Response
Avg. Read Response
With a read response of well under 0.1ms or 42MB/s (10K IOPS) at 4K QD1, the X400 smashes the competing drives in our test pool. The X400 gets edged out of first by the SP550 in write response.
DiskBench - Directory Copy
Version and / or Patch Used: 18.104.22.168
We use DiskBench to time a 28.6GB block (9,882 files in 1,247 folders) composed primarily of incompressible sequential and random data as it's transferred from our DC P3700 PCIe NVME SSD to our test drive. We then read from a 6GB zip file that's part of our 28.6GB data block to determine the test drive's read transfer rate. Our system is restarted prior to the read test to clear any cached data, ensuring an accurate test result.
Write Transfer Rate
Read Transfer Rate
The main drawback to planar-based TLC SSDs is sustained write performance. We see it getting better as time goes on. The X400 is able to best the competing SSDs in our test pool by a significant margin. Marvell's 88SS1074 and 15nm SanDisk TLC flash is proving to be a potent combination.
PRICING: You can find the SanDisk X400 1TB SATA III SSD for sale below. The prices listed are valid at the time of writing, but can change at any time. Click the link below to see real-time pricing for the best deal:
United States: The SanDisk X400 1TB SATA III SSD retails for $229 at Amazon.
United Kingdom: The SanDisk X400 1TB SATA III SSD retails for £213 at Amazon UK.
- Page 1 [Introduction, Drive Specifications, Pricing and Availability]
- Page 2 [Drive Details]
- Page 3 [Test System Setup and Properties]
- Page 4 [Synthetic Benchmarks – ATTO & Anvil Storage Utilities]
- Page 5 [Synthetic Benchmarks – CrystalDiskMark & AS SSD]
- Page 6 [Benchmarks (Trace-Based OS Volume) - PCMark Vantage, PCMark 7 & PCMark 8]
- Page 7 [Benchmarks (Secondary Volume) – Max IOPS, Disk Response & Transfer Rates]
- Page 8 [Benchmarks (Secondary Volume) – PCMark 8 Extended]
- Page 9 [Benchmarks (Secondary Volume) – 70/30 Mixed Workload]
- Page 10 [Maxed-Out Performance (MOP)]
- Page 11 [Final Thoughts]
Recommended for You
- We at TweakTown openly invite the companies who provide us with review samples / who are mentioned or discussed to express their opinion of our content. If any company representative wishes to respond, we will publish the response here.
Latest News Posts
- Intel CEO resigns, CFO steps up to the 10nm plate
- Playdead brings LIMBO and INSIDE to Nintendo Switch
- Sony doesn't need to enable cross-play, why risk 1st place?
- Unity's amazing Book of the Dead tech demo launched
- Super Smash Bros Ultimate is the most tweeted E3 title
- Aten Thunderbolt 3 Multiport Dock
- Samsung 970 EVO 2TB M.2 NVMe PCIe SSD Review
- Asus X401A Laptop will not boot despite several replaced components -- Second attempt
- DDR4-3400 - Ryzen 7 1800x & Ryzen 7 2700x - X370 & X470
- LaCie DJI Co-Pilot 2TB Review
- Micron Launches Industry's First Enterprise SATA Solid State Drives Built on Leading 64-layer 3D NAND Technology
- Micron, Rambus, Northwest Logic and Avery Design to Deliver a Comprehensive GDDR6 Solution for Next-Generation Applications
- Toshiba Memory America Unveils UFS Devices Utilizing 64-Layer, 3D Flash Memory
- ASUS Announces GeForce GTX 1070 Ti Series Gaming Graphics Cards
- ASUS Announces ASUS Hangouts Meet Hardware Kit