The Samsung 950 Pro PCIe SSD Review (256GB and 512GB)
by Billy Tallis on October 22, 2015 10:55 AM ESTIdle Power Consumption
The idle power consumption I'm reporting here and in the Bench database is what's achievable on our 2015 testbed with PCIe ASPM disabled for the sake of system stability. Samsung's initial announcement of the 950 Pro specified an idle power consumption of 1.7W, which these drives manage to stay under. Samsung's later specs mention 70mW idle and 2.5mW DevSlp power draw. The former figure is something we hope to be able to verify in the future, but our power meter isn't sensitive enough for measuring DevSlp power.
As stated earlier, the power numbers for the PCIe drives are more of a worst-case scenario, due to our testbed being unable to enable their power saving modes. These active idle power levels have nevetheless been growing with each new PCIe drive from Samsung.
Trim Validation
Strictly speaking, NVMe doesn't have the TRIM command. The NVMe Deallocate command is the equivalent to the ATA Trim command, and since the trimcheck tool relies on the OS and filesystem to issue the command, it works without modification on NVMe drives.
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AntDX316 - Thursday, November 12, 2015 - link
we need REAL-WORLD performance than synthetic benchmarksthis is like how it is with DDR speeds but they do absolutely like nothing even though bandwidth is like 10x in spread difference
SmashingTool - Thursday, October 22, 2015 - link
" and in order to boot from an NVMe drive your motherborad's firmware needs NVMe support."^ Typo
Ian Cutress - Thursday, October 22, 2015 - link
Fixed! Thanks :)todlerix - Thursday, October 22, 2015 - link
How fast does the system boot with the 950 pros? I read the NVMe slows boot times down by a huge amount.Rajinder Gill - Thursday, October 22, 2015 - link
Considering most people only the system once per day, the wait should not be considered an issue. If one BOOTs the machine many times per day, S3 sleep is a quick way back to the desktop.Rajinder Gill - Thursday, October 22, 2015 - link
*Considering most people only BOOT the system once per day, the wait should not be considered an issue.bji - Thursday, October 22, 2015 - link
Even if I only boot my computer once per day, the time spent waiting for it to boot is annoying and I consider boot times important for that reason. When there is little other user-perceivable difference in SSD drives, a boot that happens 3 or 4 seconds faster is a significant factor.Makaveli - Thursday, October 22, 2015 - link
You know whats equally annoying people that sit and stare at boot screens lol.Go get a bagel, take a piss do something crying over 10 seconds isn't exactly productive.
Rajinder Gill - Thursday, October 22, 2015 - link
This is called being enthusiastic about the wrong thing. If getting to the desktop matters that much to one's productivity, then using S3 resume would be the "logical" thing to do.Rajinder Gill - Thursday, October 22, 2015 - link
Shame on me for making a rational argument to irrational minds... ;)