The 120GB Seagate 600 is yet another drive that massively underperforms its larger, in this case 240GB, sibling. Looking at the 120GB and 240GB 600's shows that the larger 240GB version has peak speeds that are nearly 50% higher than the smaller 120GB. This increase in speed is down to additional NAND modules on the larger version which allow more parallelization during writes. The 120GB 600 has peak sequential read/write speeds of 508/246 MB/s which is great for reading but terrible for writing. The 600 does have reasonable deep queue performance but that doesn't make up for its relative inability to write. Overall the 120GB Seagate 600 is both slower and more expensive than the group leaders. [Feb '14SSDrivePro]
The Sandisk Ultra II sits above Sandisk's Ultra Plus and below their Extreme Pro. The Ultra Plus would probably have been phased out completely were it not for its continued success within budget space. The Ultra II is the first Sandisk drive to utilize cheaper (and slower) TLC NAND. Similarly to the Extreme Pro, the Ultra II utilizes an nCache which operates a portion of the NAND in simulated SLC mode. This strategy also matches the one employed by Samsung's now 14 months old Evo. Comparing the Ultra II and Evo shows broad performance equivalence which given the Ultra II's 15% price discount makes it the better choice today. That said it's probably worth waiting for the release of the 850 Evo which will pack another 14 months of Samsung's market leading R&D and will probably steal the show. [Sep '14SSDrivePro]
Welcome to our 2.5" and M.2 SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]
Welcome to our PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best value for money upgrades.