We’ve been surprised that our very expensive Samsung SSD’s buyed some years ago for more CHF 800-1000 per 256GB of size (1+2) is not as fast as any other traditional Harddisk. Compared to actual newer ones from Samsung 470 series, I’m sure we were the ones that buyed for the technology research department of Samsung by buying the SSD’s for many bucks during their development.
By taking a look onto the newest model’s performance, it could be that the research was successful and the SSD’s we buy now are really performant ones.
(1) VBM2, Samsung 256GB, unknown model, black cover
(2) VBM1, Samsung 256GB, unknown model, silver cover
(3) AXM0, Samsung 470 SSD 128GB, shipped by Dell
(4) AXM0, Samsung 470 SSD 256GB, ordered in Switzerland
(5) 1.2, Corsair 128GB with Sandforce-2 Controller (uses compression)
(6) 391A, Patriot Wildfire 256GB black
(7) OCZ Vertex 2 128GB
Disk-ID | 1 | 2 | 3 | 4 |
Seq-Read | 156.56 MB/s | 154.17 MB/s | 243.48 MB/s | 244.34 MB/s |
Seq-Write | 7.83 MB/s | 151.14 MB/s | 193.47 MB/s | 235.91 MB/s |
4K-Read | 12.25 MB/s | 12.27 MB/s | 12.17 MB/s | 13.29 MB/s |
4K-Write | 2.71 MB/s | 5.82 MB/s | 29.29 MB/s | 42.89 MB/s |
4K-64-Read | 14.79 MB/s | 15.95 MB/s | 103.62 MB/s | 106.99 MB/s |
4K-64-Write | 3.29 MB/s | 4.98 MB/s | 44.10 MB/s | 47.56 MB/s |
Acc.Time Read | 0.47 ms | 0.50 ms | 0.28 ms | 0.24 ms |
Acc. Time Write | 0.77 ms | 0.61 ms | 0.12 ms | 0.11 ms |
Score Read | 43 | 44 | 140 | 145 |
Score Write | 7 | 26 | 93 | 114 |
Total Score | 70 | 97 | 307 | 337 |
Disk-ID | 5 | 6 | 7 |
Seq-Read | 194.71 MB/s | 465.45 MB/s | 200.87 MB/s |
Seq-Write | 79.17 MB/s | 156.18 MB/s | 82.94 MB/s |
4K-Read | 13.38 MB/s | 10.10 MB/s | 13.80 MB/s |
4K-Write | 10.07 MB/s | 7.84 MB/s | 24.16 MB/s |
4K-64-Read | 58.78 MB/s | 111.76 MB/s | 128.32 MB/s |
4K-64-Write | 38.69 MB/s | 66.07 MB/s | 75.99 MB/s |
Acc.Time Read | 0.19 ms | 0.37 ms | 0.24 ms |
Acc. Time Write | 0.36 ms | 0.47 ms | 0.33 ms |
Score Read | 92 | 168 | 162 |
Score Write | 57 | 90 | 108 |
Total Score | 195 | 332 | 353 |
Tests 1-6 made with a internal SATA Controller of Dell’s E6320 Notebook, AHCI enabled. For Test 7 I don’t have futher information about the controller and the configuration.