My macbook pro 15 inch early 2011 has a 120gb kingston ssd installed. I get about 100mb/s write and high 200's read. I have TRIM enabled. However, I see other ssd benchmarks reaching 4 and 500's, which is nowhere near what I am getting. I am running 10.11 right now but I was getting identical speeds while in regular Yosemite aswell. the ssd has a rated speed of over 500mb/s on write and read, and the sata interface is 3. I would love some help.