Hi, watching nexus video with Wendell mentions latency is the king thus sparks my investigation into it. Was lazy with my new system so used old ssd (evo 850 250gb) with idea that it doesn’t really matter. New one is 980 pro 2tb
So my question how much difference it gives in day to day use of system? Judging by clean drive benchmarks latency is like 2.5x, but this doesn’t really answer on how does it feel, and will it make a difference? Does it worth the hassle to move to a faster drive?
Does optane 905p with ~7x latency will be actually noticeable?
Hi and welcome to community.
You definitely will found different between Optane and any other NVMe or SAS/SATA SSD.
It’s noticeable.
But between 2 different SSD (old and new) you will not found difference. I just checked it
WinServer 2019 LTS as system, Intel DC p4800x, Samsung 850pro, Samsung 990pro.
On Optane everything (OS, Games) noticeable faster.
Yeah, lowering access time has has noticeable effect on perceived snappiness, but it has strongly diminishing returns from sata ssd level up. Once you are on middle tier nvme, there is no reasonable upgrade path besides optane.
And perceived gains will not be great (outside specific scenarios)
SSDs simply effectively remove one of many bottlenecks that determine overall snappiness, now its mostly determined software itself + peripherals.
Get 120+ hz monitor and you will be amazed by perceived difference.
EDIT - synthetic comparison between 500 GB 850 EVO (SATA 2015) vs 2TB 990 PRO (NVME 2023):
10 years of development cut latency by half. We should not expect any further significant improvement from good old NAND flash, beyond price, capacity and raw througput.
Exactly.
And I didn’t found difference when I upgraded Samsung 850 pro(512) to 990pro (2tb) OS SSD. It was different, but not SO noticeable… Like fresh installed OS, nothing more…
But when I installed p4800x(375 GB)…
Day/night difference.
IMHO, of course.
Maybe it’s because my workstation have only PCIe 3.0? But it think it’s not because PCIe 3.0 limitations…
