AS SSD:
AS SSD is a relatively new benchmark designed specifically for solid state drives. The application contains five synthetic tests used to determine the sequential and random read and write performance of a drive.
 Samsung SSD 850 EVO mSATA 120GB |
 Samsung SSD 850 EVO mSATA 120GB (RAPID Mode) |
 Samsung SSD 850 EVO 120GB |
 Samsung SSD 840 EVO mSATA 1TB |
AS SSD also includes a copy benchmark. This test copies an ISO (two large files), program (many small files) and game (small and large files), returning the speed and duration of each.
 Samsung SSD 850 EVO mSATA 120GB |
 Samsung SSD 850 EVO mSATA 120GB (RAPID Mode) |
 Samsung SSD 850 EVO 120GB |
 Samsung SSD 840 EVO mSATA 1TB |
HD Tune Pro 5.00:
Next, I ran a series of tests using HD Tune Pro. This hard disk utility measures a drive's performance by testing its sequential read and write speeds as well as its access time, burst rate and CPU usage. For this review, I'm also going to use it to benchmark the 850 EVO mSATA's random read and write speeds, random access times and the number of operations per second.
 Samsung SSD 850 EVO mSATA 120GB - Read Benchmark |
 Samsung SSD 850 EVO mSATA 120GB (RAPID Mode) - Read Benchmark |
 Samsung SSD 850 EVO 120GB - Read Benchmark |
 Samsung SSD 840 EVO mSATA 1TB - Read Benchmark |
 Samsung SSD 850 EVO mSATA 120GB - Write Benchmark |
 Samsung SSD 850 EVO mSATA 120GB (RAPID Mode) - Write Benchmark |
 Samsung SSD 850 EVO 120GB - Write Benchmark |
 Samsung SSD 840 EVO mSATA 1TB - Write Benchmark |
The 850 EVO mSATA performed relatively well when benchmarked with HD Tune. The drive had average read and write speeds of 385.7 MB/s and 159.7 MB/s, respectively, and a burst rate of 263.9 MB/s when reading.
 Samsung SSD 850 EVO mSATA 120GB - Random Access Read |
 Samsung SSD 850 EVO mSATA 120GB (RAPID Mode) - Random Access Read |
 Samsung SSD 850 EVO 120GB - Random Access Read |
 Samsung SSD 840 EVO mSATA 1TB - Random Access Read |
 Samsung SSD 850 EVO mSATA 120GB - Random Access Write |
 Samsung SSD 850 EVO mSATA 120GB (RAPID Mode) - Random Access Write |
 Samsung SSD 850 EVO 120GB - Random Access Write |
 Samsung SSD 840 EVO mSATA 1TB - Random Access Writ |
The 850 EVO mSATA didn't disappoint when doing random reads and writes. When reading 4KB blocks, it reached 21,613 IOPS and had an average speed of 84.427 MB/s. The drive was slightly faster when reading, reaching 22,451 IOPS with an average speed of 87.700 MB/s. As you can see, RAPID mode gave the 850 EVO's random read and write performance a considerable boost. With it enabled, the drive reached 137,570 random read IOPS and 103,423 random write IOPS.
