Plextor M5 Pro 2.5" 512 GB

Model PX-128M5P PX-256M5P PX-512M5P
Capacity 128GB 256GB 512GB
Buffer
DRAM Cache 256MB DDR3 512MB DDR3 768MB DDR3
Read/Write Speed (Under Windows NTFS)
Sequential Read Speed
(SATA 6Gb/s) Up to 540 MB/s Up to 540 MB/s Up to 540 MB/s
Sequential Write Speed
(SATA 6Gb/s) Up to 330 MB/s Up to 460 MB/s Up to 470 MB/s
Random Read Speed 
(IOPS 4KB) Up to 92,000 Up to 100,000 Up to 100,000
Random Write Speed 
(IOPS 4KB) Up to 82,000 Up to 86,000 Up to 88,000
Power Consumption
MobileMark 0.25W 0.25W 0.25W