The final details on Tegra 3 (codenamed "Kal-El") have finally been unveiled. It's not exactly a revolutionary design, but Nvidia's new SoC promises to deliver notebook-level performance. Nvidia is promising better performance and improved battery life (compared to the Tegra 2). That's a tall order in world of notebooks, but it's an even more difficult task more when you're dealing with embedded architecture. The voltage requirements are much tighter and we're dealing with power consumption a magnitude lower than the familiar x86 processors.
On the GPU end, we should make it clear that Nvidia has basically recycled and supercharged its Ultra Low Power GeForce GPU from its Tegra 2 SoC. The graphics core is still restricted to OpenGL ES 2.0, so it's not a move up in the same way we'd think of DX10 to DX11. Furthermore, unlike Nvidia's desktop GPUs, both SoCs are based on an architecture that pre-dates the company's unified design.
With Tegra 2, you’re looking at four pixel shader cores and four vertex shader cores. This means the SoC operates most efficiently when the ULP GeForce GPU is presented with an even mix of vertex and shader code. Tegra 3 basically doubles the number of pixel shaders, which means it's going to operate most efficiently when faced with an uneven mix of code.
Nvidia is already advertising the fact that you can hook up a Tegra 3 tablet to a 3D monitor or HDTV and use a PS3, Xbox 360, or Wii controller to play games. That's currently possible with a current Honeycomb-based tablet (minus the 3D part), but it's a less than ideal situation because Tegra 2 lacks the horsepower to make gameplay completely smooth.
NVIDIA Tegra 3: Side by Side Comparisons
Source and full article: tom`s hardware