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Last edited by bareyataghan; 02-25-2013 at 09:17 AM.. |
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| 02-25-2013, 09:13 AM | |
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TLC NAND has higher power consumption than MLC, and since it degrades faster, it may use even more power as it ages. The deceptively-named "840 Series" is the only SSD in the marketplace to use TLC (triple layer) flash chips instead of the typical MLC (multi-layer) chips used by all other consumer SSDs. Samsung named it 840 to try to make people think it's very similar to the 840 Pro, but it's not. The latter is a good product, the former isn't so hot, especially in the 120 GB size. TLC NAND has the lowest program/erase lifespan in the industry. It has the highest power usage. It has slower write speed and lower IOPs. This product is a good deal for Samsung, but not so much for the consumer who is likely to think it's a regular MLC drive. |
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Also, for the average user who writes/erases 10gigs a day, it will still last you about 7 years. Cite: http://www.anandtech.com/show/633...0gb-review |
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It might not be the best..
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TLC NAND degrades quicker than MLC and uses more power. HardOCP warns that the power usage may go even higher as the NAND ages. That site even suggested that Samsung start using a thermal pad because of heat generation. This is the only SSD in the market to use TLC NAND. TLC (triple layer) also has the lowest lifespan. Anandtech estimates that the program/erase cycle lifespan may be around 750 cycles for 2xnm chips. As NAND processes continue to be shrunk, that lifespan will also shrink. MLC is being produced at 19nm already. Are we going to soon see TLC with 500 p/e cycles? TLC NAND's performance may degrade significantly over its lifetime, especially if it is written to quite a bit. HardOCP found that steady-state 4k testing caused the 120 GB drive to even flatline on read speed, the one thing that TLC drives seem to do well in (unlike write speed). This is the first TLC product in the market. Your mileage may vary. |
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Nevertheless, this SSD may not be the best for a laptop if it is the only drive. It does have a short life if you write data to it repeatedly. I found it out after I placed the order. Anyway, I put a HDD in the optical drive bay with a caddy for storing active data and handle downloads. This way, I can prolong the life of the SSD and improve the performance of the laptop, but it will not extend battery running time or reduce heat. Last edited by billcsho; 02-25-2013 at 10:47 AM.. |
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How different 840 and 840PRO are? I am photographer who do not play any games on PC, could you recommend which one good for me? Thanks. |
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