hello,which ssd is better? samsung 850evo 250gb or sandisk extreme pro 240gb.i saw that sandisk has about 80 tbw and samsung has 75 so what does that tbw mean?does it mean that sandisk is better?
They're really comparable. Tom's even recommends both of them under different categories. I'd choose whichever is cheaper although personally I run a 500GB Samsung 850 EVO.
The 850 EVO delivers guaranteed endurance and reliability by doubling the Total Bytes Written (TBW) compared to the previous generation of 840 EVO* along with an industry-leading 5 year warranty. Through improving performance by up to 30%, the 850 EVO allows sustained performance** making it one of the most dependable storage solutions.
* TBW: 43 (840 EVO) < 75 (850 EVO 120/250 GB), 150 (850 EVO 500/1 TB)
** Sustained Performance (250 GB) : 3300 IOPS (840 EVO) < 6500 IOPS (850 EVO), Performance measured after 12 hours “Random Write” test
on official site http://www.samsung.com/global/business/semiconductor/minisite/SSD/global/html/ssd850evo/overview.html