Windows 10: Samsung 960 EVO, suddenly random IOPS read is much slower

Sineira · Jul 30, 2020

When bench-marking my 960 EVO with Samsung Magician it's now much slower for random IOPS read and I can't figure out why.
I have made sure I have the latest drivers etc but nothing helps.

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The only change I can remember is that I converted the SSD to GPT.
I had made one change related to PCI link power saving but reverting it changed nothing.

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Partial success.
After un-checking the top box and checking it again the speeds are restored, mostly.
Except the write speed is still slower that normal (read is higher).

When I check the drivers for the controller I see something odd but not sure if it's wrong or not.
The driver version seems correct but I thought iaStorAC.sys was for RAID/Optane?

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IOPS read is good again but not IOPS write:

:)

Brink · Jul 30, 2020

New Samsung 960 PRO and EVO Solid State Drives

Samsung Electronics, a worldwide leader in advanced memory solutions for more than two decades, today unveiled the Samsung 960 PRO and 960 EVO, its newest solid state drives (SSDs). The V-NAND based, M.2 form factor SSDs were built on the company’s category-defining Non-Volatile Memory Express (NVMe) SSD leadership. With powerful performance, endurance and capacity topped with all new and more robust Samsung Magician software package, Samsung continues to accelerate the NVMe era.

Packed with more technology and innovation than ever, the 960 PRO and 960 EVO are designed for users who seek smaller and faster storage solutions that deliver higher bandwidth and lower latency for processing massive amounts of data for everything from gaming and large file transfers to 4K video rendering, data analytics and more on their ultra-thin notebooks and PCs.

Both the 960 PRO and 960 EVO use the Peripheral Component Interconnect Express (PCIe) Gen.3 x4 lane interface and are compliant with NVMe specifications to realize effective use of the high-speed PCIe bus and optimize both hardware and software configurations to take advantage of the NVMe SSD technology. The SSDs feature Samsung Dynamic Thermal Guard technology to manage performance during extreme workloads.

“For more than 30 years, Samsung has continued to push the boundaries of what is possible to deliver innovative consumer memory experiences.” said Un-Soo Kim, Senior Vice President of Branded Product Marketing, Memory Business at Samsung Electronics. “Our V-NAND technology for NVMe-based storage products is our most recent advancement in the NVMe era.”

The 960 PRO and 960 EVO SSDs redefine the personal computer performance, in part attributed to new controller which raises the bar of consumer SSD performance. The 960 PRO delivers peak sequential read and write transfer speeds of 3,500 MB/s and 2,100 MB/s, respectively, and random read and write IOPS of up to 440,000 and 360,000.

On top of being the world’s fastest M.2 NVMe- SSD, the 960 PRO will also offer 2 terabyte (TB) capacity, which is the highest capacity commercially available for M.2 NVMe SSDs, along with 512GB and 1TB versions. The 960 PRO’s high density was made possible by Samsung V-NAND technology and the uniquely restructured package design. As user capacity demand trends continue to rise, the high-density 960 PRO capacities are poised to conveniently meet the needs of personal data and information storage. The 960 PRO promises additional reliability and endurance with the five-year limited warranty and up to 1.2 petabytes written (PBW), whichever occurs first, for the 2TB capacity.

“We were proud to erect the NVMe era last year with the introduction of our 950 PRO SSD. Now, with the introduction of the NVMe 960 PRO and 960 EVO SSDs, Samsung is once again taking the next step in the multi-terabyte SSD technology and the storage revolution, providing users higher capacities and speeds than ever before within an NVMe PCIe drive to create new possibilities for consumers and business professionals,” Kim added.

The 960 EVO is available in 250GB, 500GB and 1TB capacities and provide users with next-generation personal computing performance. The new Samsung Intelligent TurboWrite technology makes its debut in the 960 EVO and accelerates sequential read and write speeds, that reach peaks of 3,200 MB/s and 1,900 MB/s respectively. The 960 EVO’s random read speed reaches up to 380,000 IOPS and random write speed up to 360,000 IOPS. The 960 EVO comes with a three-year limited warranty and up to 400 terabytes written (TBW), whichever occurs first, for the 1TB capacity version.

In addition to the industry leading performance, capacity and the reliable warranty-backed experience the 960 SSDs offer, Samsung is also introducing the all-new and fully rebuilt Magician software with a new user interface with which users can control various SSD settings including firmware updates.

The 960 PRO and 960 EVO SSDs will be available worldwide starting October 2016, with manufacturer’s suggested retail prices starting at $329.99 and $129.99 USD respectively...

[table][tr][td]Product[/td] [td]Key Specifications[/td] [/tr] [tr][td]960 EVO[/td] [td]

Ideal for mainstream NVMe users looking for next generation PC performance

Available in 250GB, 500GB and 1TB capacities

First Samsung product to integrate Samsung Intelligent TurboWrite technology, accelerating sequential read and write speeds

Sequential read speeds up to 3,200 MB/s

Sequential write speeds up to 1,900 MB/s

Three-year limited warranty up to 400 TBW for 1TB capacity, whichever occurs first

Dynamic Thermal Guard technology to manage performance levels and prevent overheating

M.2 form factor ideal for ultra-thin notebooks and PCs

Features PCIe Gen.3 x4 lane interface

Compliant with all NVMe specifications

[/td] [/tr] [tr][td]960 PRO[/td] [td]

Samsung’s highest capacity NVMe consumer SSD (2TB) for next generation, professional-level performance and endurance with an innovative new PCB design

Available in 512GB and 1TB and 2TB capacities

Sequential read speeds up to 3,500 MB/s

Sequential write speeds up to 2,100 MB/s

Five-year limited warranty up to 1.2 Petabytes for 2TB capacity, whichever occurs first

Dynamic Thermal Guard technology to manage performance levels and prevent overheating

M.2 form factor ideal for ultra-thin notebooks and PCs

Features PCIe Gen.3 x4 lane interface

Compliant with all NVMe specifications

[/td] [/tr] [/table]
Click to expand...

Read more: Samsung Electronics Accelerates the NVMe Era for Consumers with Its Highest Performing 960 PRO and EVO Solid State Drives Samsung Newsroom

Brink · Jul 30, 2020

New Samsung 960 PRO and EVO Solid State Drives

Samsung Electronics, a worldwide leader in advanced memory solutions for more than two decades, today unveiled the Samsung 960 PRO and 960 EVO, its newest solid state drives (SSDs). The V-NAND based, M.2 form factor SSDs were built on the company’s category-defining Non-Volatile Memory Express (NVMe) SSD leadership. With powerful performance, endurance and capacity topped with all new and more robust Samsung Magician software package, Samsung continues to accelerate the NVMe era.

Packed with more technology and innovation than ever, the 960 PRO and 960 EVO are designed for users who seek smaller and faster storage solutions that deliver higher bandwidth and lower latency for processing massive amounts of data for everything from gaming and large file transfers to 4K video rendering, data analytics and more on their ultra-thin notebooks and PCs.

Both the 960 PRO and 960 EVO use the Peripheral Component Interconnect Express (PCIe) Gen.3 x4 lane interface and are compliant with NVMe specifications to realize effective use of the high-speed PCIe bus and optimize both hardware and software configurations to take advantage of the NVMe SSD technology. The SSDs feature Samsung Dynamic Thermal Guard technology to manage performance during extreme workloads.

“For more than 30 years, Samsung has continued to push the boundaries of what is possible to deliver innovative consumer memory experiences.” said Un-Soo Kim, Senior Vice President of Branded Product Marketing, Memory Business at Samsung Electronics. “Our V-NAND technology for NVMe-based storage products is our most recent advancement in the NVMe era.”

The 960 PRO and 960 EVO SSDs redefine the personal computer performance, in part attributed to new controller which raises the bar of consumer SSD performance. The 960 PRO delivers peak sequential read and write transfer speeds of 3,500 MB/s and 2,100 MB/s, respectively, and random read and write IOPS of up to 440,000 and 360,000.

On top of being the world’s fastest M.2 NVMe- SSD, the 960 PRO will also offer 2 terabyte (TB) capacity, which is the highest capacity commercially available for M.2 NVMe SSDs, along with 512GB and 1TB versions. The 960 PRO’s high density was made possible by Samsung V-NAND technology and the uniquely restructured package design. As user capacity demand trends continue to rise, the high-density 960 PRO capacities are poised to conveniently meet the needs of personal data and information storage. The 960 PRO promises additional reliability and endurance with the five-year limited warranty and up to 1.2 petabytes written (PBW), whichever occurs first, for the 2TB capacity.

“We were proud to erect the NVMe era last year with the introduction of our 950 PRO SSD. Now, with the introduction of the NVMe 960 PRO and 960 EVO SSDs, Samsung is once again taking the next step in the multi-terabyte SSD technology and the storage revolution, providing users higher capacities and speeds than ever before within an NVMe PCIe drive to create new possibilities for consumers and business professionals,” Kim added.

The 960 EVO is available in 250GB, 500GB and 1TB capacities and provide users with next-generation personal computing performance. The new Samsung Intelligent TurboWrite technology makes its debut in the 960 EVO and accelerates sequential read and write speeds, that reach peaks of 3,200 MB/s and 1,900 MB/s respectively. The 960 EVO’s random read speed reaches up to 380,000 IOPS and random write speed up to 360,000 IOPS. The 960 EVO comes with a three-year limited warranty and up to 400 terabytes written (TBW), whichever occurs first, for the 1TB capacity version.

In addition to the industry leading performance, capacity and the reliable warranty-backed experience the 960 SSDs offer, Samsung is also introducing the all-new and fully rebuilt Magician software with a new user interface with which users can control various SSD settings including firmware updates.

The 960 PRO and 960 EVO SSDs will be available worldwide starting October 2016, with manufacturer’s suggested retail prices starting at $329.99 and $129.99 USD respectively...

[table][tr][td]Product[/td] [td]Key Specifications[/td] [/tr] [tr][td]960 EVO[/td] [td]

Ideal for mainstream NVMe users looking for next generation PC performance

Available in 250GB, 500GB and 1TB capacities

First Samsung product to integrate Samsung Intelligent TurboWrite technology, accelerating sequential read and write speeds

Sequential read speeds up to 3,200 MB/s

Sequential write speeds up to 1,900 MB/s

Three-year limited warranty up to 400 TBW for 1TB capacity, whichever occurs first

Dynamic Thermal Guard technology to manage performance levels and prevent overheating

M.2 form factor ideal for ultra-thin notebooks and PCs

Features PCIe Gen.3 x4 lane interface

Compliant with all NVMe specifications

[/td] [/tr] [tr][td]960 PRO[/td] [td]

Samsung’s highest capacity NVMe consumer SSD (2TB) for next generation, professional-level performance and endurance with an innovative new PCB design

Available in 512GB and 1TB and 2TB capacities

Sequential read speeds up to 3,500 MB/s

Sequential write speeds up to 2,100 MB/s

Five-year limited warranty up to 1.2 Petabytes for 2TB capacity, whichever occurs first

Dynamic Thermal Guard technology to manage performance levels and prevent overheating

M.2 form factor ideal for ultra-thin notebooks and PCs

Features PCIe Gen.3 x4 lane interface

Compliant with all NVMe specifications

[/td] [/tr] [/table]
Click to expand...

Read more: Samsung Electronics Accelerates the NVMe Era for Consumers with Its Highest Performing 960 PRO and EVO Solid State Drives Samsung Newsroom

Mark · Jul 30, 2020

Samsung EVO 860 1TB SATA low read/write IOPS

I recently purchased a Samsung EVO 860 1TB SATA SSD. I have installed fresh Windows 10 Pro. I have updated each and every driver and BIOS to the latest. Firmware for SSD is also the latest. I have enabled AHCI, TRIM and RAPID mode.

But Samsung Magician reports low Read/Write IOPS. Sequential Read/Write is fine. For sequential Read/Write I am getting the values as advertised. It is connected to SATA3 interface as shown in Image-2.

What can i do to improve Read/Write IOPS?

Image1: Samsung Magician Performance Benchmark

Image2: SSD Health and settings reported by Samsung Magician

Windows 10: Samsung 960 EVO, suddenly random IOPS read is much slower

Samsung 960 EVO, suddenly random IOPS read is much slower

Samsung 960 EVO, suddenly random IOPS read is much slower

Samsung 960 EVO, suddenly random IOPS read is much slower

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