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2 TB Samsung 980 Pro PCIe 4.0 NVMe SSD Listed at Retailer

Makaveli

Makaveli

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ThrashZone said:
Hi,
Pci-e 4 is getting really close and frankly read 2600mb/ write 2200mb for optane on 905p for example is not all that impressive considering it's price tag for just 380gb is 500.us
Click to expand...

You are only looking at sequential transfer rates. For people buying optane drives they are usually looking for more than those transfer rates or they would stick to flash based products.

There are more factors but I will list three that most buyers of optane drivers are looking for.
  1. Latency
  2. Endurance
  3. heavy writes
If I'm going to run a SQL database from a drive I would choose an Optane drive over a flash based one all day every day.
 
Last edited:
T

Tomorrow

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ThrashZone said:
Hi,
Pci-e 4 is getting really close and frankly read 2600mb/ write 2200mb for optane on 905p for example is not all that impressive considering it's price tag for just 380gb is 500.us
Click to expand...
Optane's strenght is not sequential speeds but rather random low queue depth speeds. Meaning 4K 1T and low latency. Also unlike NAND flash Optane retains it's speed regardless of cell size. Meaning that a 100GB drive is as fast as a 1TB drive. With NAND flash there is a level of parralelism required to reach peak (sequential) speeds. Usually 1TB. Lesser capacity models usually suffer performance loss. Optane also has insane endurance. Even greater than MLC or even SLC flash. Not to mention order of magnitude better than TLC or god forbid QLC.
This makes Optane well suited for enterprise use.

So both NAND and Optane each have their strenghts and weakenesses.
Gen4 Optane (Alder Stream) is supposed to come out soon. I assume it has been postponed because Rocket Lake (that has Gen4 support) was postponed to Q1 2021.

Alder Stream should be much closer to NAND Flash in terms of sequential speeds nearly maxing out the Gen4 link. Thus eliminating one of it's main downsides compared to NAND. The price difference will remain tho.

Obviously we wont know until independent reviews and it will likely be enterprise oriented with a price tag to match. Still i could see this being the fastest OS drive with great speeds and low latency and with nearly unlimited endurance.
 
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