Power Consumption: 4 KB Random (Windows 7/Mac OS X)
4 KB Random Read
The Vertex 3 requires the most power under this load test. However, because the Vertex 4 delivers 15% less performance at 15% less power, the efficiency comparison is a wash in random reads.
4 KB Random Write
Samsung's 830 is clearly the least efficient drive here; it requires almost two times the power to do a fraction of the work. In comparison, the Vertex 4 stacks up pretty well. Performance and power consumption are similar to the Vertex 3. But when you fold incompressible performance into the equation, OCZ's newest SSD gains an upper hand.