@ Amphbious54- The newest Russian Submarine is the "Borei Class" Project 955 Submarine. The first of this class is supposed to launch early next year. It is slightly shorter than the Typhoon, but much narrower. The submarine is about thirty percent narrower than the Typhoon. Unlike the dual reactor, dual shaft Typhoon, the Borei will be powered by a single reactor and single shaft pump jet propulsion system. This more streamlined look makes the Borei much faster than the Typhoon, more agile than the Typhoon, and able to dive to deeper depths.
The Borei loses diameter in a couple of its torpedo tubes as well as surface to air missile capabilities. The Borei is also equipped with four fewer Surface Launched Ballistic Missiles (SLBM) than the Typhoon. It should be noted however, that the SLBMs developed for the Borei Class Submarines can carry ten 150 Kiloton warheads that are each individually maneuverable, and individually guided. The Russian Government had the missiles developed from scratch to be the cornerstone of the Russian missile platform.