According to Swiftech, the pump performance curves are similar between the integrated and stand alone versions of the MCP350. However, I disassembled mine on arrival to have a look at the guts and I think just based on design it probably performs slightly better than the standalone. The machining quality is fair to good, although if you had a small dremel you might be able to improve flow and reduce turbulence a little bit by putting a chamfer on the outlet channel opening (pump housing side). Other than that, no burrs, not a lot of machining tool chatter, cuts were clean, drilled holes looked good etc.

One of the benefits of using the MCP350 at 10W is that this pump is virtually silent.