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.
 Vertex 450 256GB |
 SanDisk Extreme II SSD 240GB |
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.
 Vertex 450 256GB |
 SanDisk Extreme II SSD 240GB |
HD Tune Pro 4.61:
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 Vertex 450's random read and write speeds, random access times and the number of operations per second.
 Vertex 450 256GB - HD Tune Read Benchmark |
 SanDisk Extreme II SSD 240GB - HD Tune Read Benchmark |
 Vertex 450 256GB - HD Tune Write Benchmark |
 SanDisk Extreme II SSD 240GB - HD Tune Write Benchmark |
The Vertex 450 performed fairly well when benchmarked with HD Tune. The drive had average read and write speeds of 465.8 MB/s and 462.9 MB/s, respectively, and a burst rate of about 406 MB/s.
 Vertex 450 256GB - HD Tune Random Access Read |
 SanDisk Extreme II SSD 240GB - HD Tune Random Access Read |
 Vertex 450 256GB - HD Tune Random Access Write |
 SanDisk Extreme II SSD 240GB - HD Tune Random Access Write |
The Vertex 450 didn't disappoint when doing random reads and writes. When writing 4KB blocks, the drive reached 23,080 IOPS and had an average speed of 90.157 MB/s. The Vertex 450 was even faster when reading, reaching 24,276 IOPS with an average speed of 94.830 MB/s.
