Samsung SSD 120 VS 128

Solution
1. No the 8GB's do not make any difference.
2. Follow this order (from best to worse) for the model of the SSD 840 PRO > 840 EVO > 840 > 830
3. If they both are from the Same model series, for example if both are 840 Pro, then go for the cheaper one.
4. If any of them or both of them are from 830 series then just ignore it.

Best could be that you should post both the drives model number and let us just judge it out on what to get.

Also post the prices of both of the drives.
1. No the 8GB's do not make any difference.
2. Follow this order (from best to worse) for the model of the SSD 840 PRO > 840 EVO > 840 > 830
3. If they both are from the Same model series, for example if both are 840 Pro, then go for the cheaper one.
4. If any of them or both of them are from 830 series then just ignore it.

Best could be that you should post both the drives model number and let us just judge it out on what to get.

Also post the prices of both of the drives.
 
Solution

GagaTroll

Honorable
May 11, 2013
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Sandforce drives were 120GB because they used that extra 8GB to distribute writes, so that the flash would last longer. Marvel didnt, so it had that extra capacity.
No reason why Samsung couldn't do that on their own controller. The 840 uses TLC flash which degrades quicker, so sacrificing that 8GB for write distribution on that drive and not the 840 Pro (uses MLC flash, which is more resistant) makes sense.