The PRO table doesn't specify any RAM in it. Does it mean that it's not going to lose data on power loss?
SLC caching, so hopefully not? But I think you’d have to test this.
Samsung's 970 EVO SSDs Reviewed – 500GB and 1TB
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Re: Samsung's 970 EVO SSDs Reviewed – 500GB and 1TB
#12The PRO table doesn't specify any RAM in it. Does it mean that it's not going to lose data on power loss?
SLC caching, so hopefully not? But I think you’d have to test this.
I have no idea whether Samsung uses it, but the NVMe spec allows a device to request use of host memory for caching. It’s considered a low-end feature, since it’s slow and inherently volatile. It’s called “host memory buffer” for those who are curious.
Re: Samsung's 970 EVO SSDs Reviewed – 500GB and 1TB
#13Earlier quoted context omitted.
Well it is a 3D rendering, and that color might suggest the device has a metal heat spreader not a colored plastic molding.
The Anandtech review says it's nickel plated. The sticker is also a copper heat spreader: "The Samsung Phoenix controller introduces a nickel-coated heatspreader, and the 970 EVO retains the copper foil layer in the label on the back of the drive that was introduced with the 960 generation, but there are no more serious cooling measures on the drive."
Oh, I'm such an inattentive reader.
Re: Samsung's 970 EVO SSDs Reviewed – 500GB and 1TB
#14Earlier quoted context omitted.
SLC caching, so hopefully not? But I think you’d have to test this.
I have no idea whether Samsung uses it, but the NVMe spec allows a device to request use of host memory for caching. It’s considered a low-end feature, since it’s slow and inherently volatile. It’s called “host memory buffer” for those who are curious.
Volatile is ok, as long as it honors barrier commands.
Re: Samsung's 970 EVO SSDs Reviewed – 500GB and 1TB
#15Earlier quoted context omitted.
I have no idea whether Samsung uses it, but the NVMe spec allows a device to request use of host memory for caching. It’s considered a low-end feature, since it’s slow and inherently volatile. It’s called “host memory buffer” for those who are curious.
Volatile is ok, as long as it honors barrier commands.
I think the bigger issues are bandwidth and power consumption. If software is doing heavy IO, it doesn’t really want to have to contend with the HMB for PCIe and memory bandwidth.
Also, a DRAM chip is a DRAM chip. I’d rather pay a couple dollars for a local DRAM chip in the NVMe device than a couple dollars for extra host RAM that will be permanently reserved for the HMB.
Re: Samsung's 970 EVO SSDs Reviewed – 500GB and 1TB
#16I just changed my work video editing workstation order. I will have two 970 EVO NVMe for my OS and Project drives. There actually is a bottle next with raw 4K, 5K and 8K Video and playing it in an editor.
It doesn't seem like the 970 Evo is much faster than the 960 Evo.
They're still faster than all of the competition (aside from super-expensive Intel Optane). So its not a big deal. But there are some reviews that show the 960 Evo winning some performance tests out there.
Re: Samsung's 970 EVO SSDs Reviewed – 500GB and 1TB
#17Do these drives feature power-loss capacitors? I'm still wondering why most manufacturers think it's okay to offer SSDs that lose data on power loss (!!)
Re: Samsung's 970 EVO SSDs Reviewed – 500GB and 1TB
#18Re: Samsung's 970 EVO SSDs Reviewed – 500GB and 1TB
#19Hoping this reduces used 960 EVO/PRO prices. Not a whopping improvement.
Re: Samsung's 970 EVO SSDs Reviewed – 500GB and 1TB
#20Do these drives feature power-loss capacitors? I'm still wondering why most manufacturers think it's okay to offer SSDs that lose data on power loss (!!)
What are you wondering about? They can squeeze more money out of businesses because it is sold as enterprise feature.