PMC-Sierra Flashtec NVRAM Drive Review

[Guest]

The PMC-Sierra Flashtec NVRAM drive offers up to 10M IOPS in Direct Memory Interface (DMI) mode and 1M 4K random IOPS when utilized as a block device with the lightweight NVMe protocol.

PMC-Sierra Flashtec NVRAM Drive Review : Read more

 

[chalabam]

There is also ssd on dimm (never reviewed on Tomshardware)

Those are SSD on memory modules, much faster than any PCIe SSD, at least for I/O

Examples are SanDisk's ULLtraDIMM SSD, or Viking's SATADIMM SSD.

 

[wtfxxxgp]

I didn't know about those bits either...it is kind of shocking that it has not been reviewed by THW...

 

[PaulyAlcorn]

Actually, the ULLtraDIMM is not faster than the NVRAM drive, particularly in sustained workloads.
The SATADIMM SSD utilizes a SATA cable to transfer data, it just plugs into the memory slot for its power. Therefore, it is no faster than a typical 6 Gb/s SATA SSD.
There are competing NVDIMM's however, that may be faster as a block or DMI device, but we would have to actually test them to verify the performance.

 

[pocketdrummer]

Ahem... cost?

 

[chalabam]

Actually, the ULLtraDIMM is not faster than the NVRAM drive, particularly in sustained workloads..

ULLtraDIMM is flash memory (and that specific one is an old model).

The new ones should be compared with the new PCIe SSD units.

 

[Liam Kelly]

There is also ssd on dimm (never reviewed on Tomshardware)

Those are SSD on memory modules, much faster than any PCIe SSD, at least for I/O

Examples are SanDisk's ULLtraDIMM SSD, or Viking's SATADIMM SSD.

Viking's SATADIMM just gets power from the memory bus, it uses SATA for data transfer so really no different then most ssd's.