Apple did not hide the markings on the A6 chip at the Wednesday event. This gave chip sleuths a way to determine system memory capacity and speed -- so a chip review site claims.

(Credit: James Martin/CNET)

The iPhone 5 sports 1GB of system memory, twice the amount of the iPhone 4S, a chip review site claims.

And it's faster too, said Anandtech in a post on Saturday.

"Roughly 33 percent more peak memory bandwidth than the iPhone 4S, which can definitely help feed the faster [graphics processing unit] and drive the higher resolution display," Anandtech said.

So, how does Anandtech know this? Apple did not hide the markings (see image above) at the Wednesday event, which revealed a Samsung -- manufacturer of the A6 -- part number.

We'll know for sure that it's a 1GB part, or not, when somebody takes apart the iPhone 5 and looks at the chip markings in a shipping product. That said, these markings are essentially the same data that is revealed in a teardown.

The iPhone 5's memory speed falls between the iPhone 4/4S and the third-generation Retina iPad, according to Anandtech.

(Credit: Anandtech)