By "replacing", I meant "replacing" to default boot drive. I consider that replacing.
But since you really want everything literally, I changed the title and my post. So we can all be happy.
I didn't really think anyone would actually worry about the replacing part, this thread was meant to focus on the performance.
On that note, you never even mentioned which interface you used to "replace" your boot drive. I am assuming Thunderbolt, but you could've just as easily used a USB 2.0 enclosure which would skew the results.