The phrase "actually use the same" is correct and usable in written English.
It can be used when discussing similarities or identical usage between two or more items, concepts, or methods.
Example: "Despite their differences, both software programs actually use the same underlying algorithm."
Alternatives: "truly utilize the same" or "genuinely employ the same".
Many pundits assumed that Google was holding back Chrome from iOS because it couldn't use its own rendering engine, however, Google just told us that Chrome will actually use the same rendering engine that Apple makes available to every other third-party developer on iOS.
Not so, according to Alfred Crompton, a zoologist at Harvard, and Catherine Musinsky, his assistant, who used high-speed light videos and X-ray videos to demonstrate that dogs and cats actually use the same mechanism to drink.
In fact, you can actually use the same stylus on both devices.
Beneath their eloquent exterior, many of Rorty's essays actually use the same rhetorical strategies as his intellectual adversaries.
So users can't actually use the same Vidoop-protected OpenID accounts that AOL has given them to actually sign into AOL services.
But many investors don't realize that they can benefit from more than just the general advice of these two incredibly successful money managers--they can actually use the same strategies Buffett and Lynch used to build their fortunes.
In technology circles, people talk about the merits of eating your own dog food — making sure your company is actually using the same products or services it is selling.
Unlike most companies, Microsoft has to use the same tools and then figure out how to resolve problems while actually using the same software as everyone else.
The new camera is ~16% smaller and lighter than the GF2, but should take pictures of the same quality; it actually uses the same sensor and image processor.
