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Intel 750 SSD Slow Sequential Write Problem

New Contributor II

I have a Intel 750 400GB Pcie SSD installed

The Sequential Write Speed seems to be about 50% of what it should be when I run AS SSD Benchmark.

The SSD is my Windows 10 OS Drive.

No idea why this is so - any thoughts welcomed



New Contributor III
New Contributor III


Is it Power Plan set to High Performance?

New Contributor II

Yes - PowerPlan is set to High

Valued Contributor II

Hello mick354029,

Here are the some additional aspects regarding the performance results you obtained from your system:

- The advertised performance of the Intel® SSD 750 Series is measured using IOmeter* with specific conditions to take advantage of the drive's capabilities, some tools such as AS SSD allow only "fixed" tests, and in most cases the results will be different from the advertised.

For example, for sequential writes, we use 128K Transfer request size, and 1 worker with Q-depth 32, this is not noted in the AS SSD test. For a more detailed description of the testing procedures, please review the Intel® SSD 750 Series Evaluation Guide, page 13 contains Sequential Writes information.

- Make sure you are using the Intel® Solid-State Drive Data Center Family for NVMe Drivers, version The latest Intel driver has a lot better performance than the Windows* in-box driver.

- Confirm that the SSD is connected to a PCIe Gen3 x4 connector. The drive is backwards compatible with lower speeds but will not achieve its best performance with slower connections.

- It is highly recommended to contact the Computer Manufacturer Support and make sure you are using the most recent BIOS for your motherboard.

New Contributor II

The Intel Driver is believed to be latest - see the Toolbox image.

The 750 SSD id definately Gen 3 slot

I am using the latest ASUS Bios

Would the AS SSD Test really result in a 50% difference (I would expect some differences but suprised that it would be 50%) ?