| Post Date | Sold By | Sale Price | Activity |
|---|---|---|---|
 12/03/24 |  Amazon | $85 |
6 |
 06/29/23 | Amazon | $62 |
0 |
 06/20/23 | Amazon | $62 |
10 |
 05/25/23 | Amazon | $66 frontpage |
44 |
 04/06/23 | Amazon | $75 frontpage |
56 |
| 03/30/23 | Amazon | $80 frontpage |
19 |
| 03/08/23 | Amazon | $82 frontpage |
50 |
 01/25/23 | Amazon | $85 |
6 |
| 12/15/22 | Amazon | $89 popular |
7 |
| 10/12/22 | Amazon | $99 frontpage |
27 |
 09/26/22 | Amazon | $99 frontpage |
75 |
 08/25/22 | Amazon | $108 |
5 |
| 08/10/22 | Amazon | $109 frontpage |
105 |
| 07/13/22 | Amazon | $115 frontpage |
28 |
 06/09/22 | Amazon | $130 frontpage |
30 |
 05/04/22 | Amazon | $130 popular |
11 |
| Sold By | Sale Price |
|---|---|
| Amazon | $88.99 |
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23 Comments
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I bought one maybe two months back as a game drive because my main SSD was crowded. It's fine for those who don't need to write >350 GB at a time, which is most everyone. I probably have 10% longer load times over a much more expensive mid range drive, but meh?
https://www.tomshardwar
As near as I can tell, the various letter X2 drives from TramGroup are pretty much identical.
Dramless SSDs especially SATA that cannot use a Host Memory Buffer unlike nvme drives are typically much slower for reads than ones with dram. SATA dramless drives are worst of all worlds and may be good for archival storage. The peak read and write numbers are misleading.
This confusion even in some articles come from the days of hard drives where a dynamic ram cache was used to hold write content as a buffer. SSDs these days don't do that. They use a cache of NAND cells (SLC or pseudo SLC) for write content storing.
Without DRAM they have to read NAND to figure out where the data is and write to NAND to update the translation tables.
These days the price difference isn't that different from a decent SSD with dram amortized over the life time to justify these bottom tiers.
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Dramless SSDs especially SATA that cannot use a Host Memory Buffer unlike nvme drives are typically much slower for reads than ones with dram. SATA dramless drives are worst of all worlds and may be good for archival storage. The peak read and write numbers are misleading.
This confusion even in some articles come from the days of hard drives where a dynamic ram cache was used to hold write content as a buffer. SSDs these days don't do that. They use a cache of NAND cells (SLC or pseudo SLC) for write content storing.
Without DRAM they have to read NAND to figure out where the data is and write to NAND to update the translation tables.
These days the price difference isn't that different from a decent SSD with dram amortized over the life time to justify these bottom tiers.
Dramless SSDs especially SATA that cannot use a Host Memory Buffer unlike nvme drives are typically much slower for reads than ones with dram. SATA dramless drives are worst of all worlds and may be good for archival storage. The peak read and write numbers are misleading.
This confusion even in some articles come from the days of hard drives where a dynamic ram cache was used to hold write content as a buffer. SSDs these days don't do that. They use a cache of NAND cells (SLC or pseudo SLC) for write content storing.
Without DRAM they have to read NAND to figure out where the data is and write to NAND to update the translation tables.
These days the price difference isn't that different from a decent SSD with dram amortized over the life time to justify these bottom tiers.
Three things determine how fast or slow an SSD can be not just the bandwidth. Latency, bandwidth and iops. If the latency is high, for example, because they have a dramless translation, or the iops they can support is low because of a weak controller that is an overhead for every read.
In a large or sustained read, that might not amount to much amortized, but in a lot of short random reads, that can result in poor throughput. Even in sustained reads, the difference between ssds with dram and without dram is clear as in the first attached picture (regardless of brand). It gets worse with random reads. The second attached picture shows how a combination of dramless and weak controller as in these budget SSDs can be relatively high. Some of the top vendors make up for it with fast controllers or fast flash memory and so can have a dramless version have lower latency than another brand with dram. But that is out of reach for these budget. brands.
Same thing happens with memory too and why the same three factors determine how fast a memory stick really is even if they are connected to a fast bus.
Unfortunately, most SSD manufacturers don't provide detailed specs.
All of these are faster compared to a HDD in most conditions (some like this one may slow down to less than HDD speeds on sustained writes) but that doesn't mean any SSD is ok.
Dram and dramless is one of the top reasons for SSD differentiation in overall performance. Dramless were fine when SSDs were extremely expensive and it allowed relatively cheaper ones. But these days, the difference can be in a few tens of dollars to justify low tier SSDs with many low performing scenarios.
Dram and dramless is one of the top reasons for SSD differentiation in overall performance. Dramless were fine when SSDs were extremely expensive and it allowed relatively cheaper ones. But these days, the difference can be in a few tens of dollars to justify low tier SSDs with many low performing scenarios.
What I'd really like to know is whether this would be a useful upgrade for a ~$100 computer that's currently booting from a spinning (2tb) drive.
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What I'd really like to know is whether this would be a useful upgrade for a ~$100 computer that's currently booting from a spinning (2tb) drive.
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