NVIDIA has added three new high-performance mobile GPUs to its lineup, the GeForce GTX 680MX, GeForce GTX 675MX, and GeForce GTX 670MX. Starting from the high-end GTX 680MX, it is based on the 28nm GK104 GPU and is Nvidia's most powerful GPU for notebooks. It features 1536 CUDA cores, with the same 720 MHz clock speed and 5 GHz memory. The GTX 680MX has also 2GB of GDDR5 memory.



The GTX 675MX is also based on the GK104 silicon, but has 960 CUDA cores, and 2GB of GDDR5 memory. The core is clocked at 600 MHz and the memory at 3.60 GHz.

Finally the GTX 670MX is based on the 28 nm GK106 silicon. It is configured with 960 CUDA cores but has a narrower 192-bit memory interface. Its core is clocked at 600 MHz and its memory at 2.80 GHz.

	GeForce GTX 680MX	GeForce GTX 675MX	GeForce GTX 670MX
GPU Engine	28 nm GK104		28 nm GK106
CUDA Cores	1536	960
Processor Clock Tester(MHz)	720	600
Texture Fill Rate (billion/sec)	92.2	48.0
Memory Clock	2500 MHz	1800 MHz	1400 MHz
Memory Interface	GDDR5
Memory Interface Width	256-bit		192-bit
Memory Bandwidth (GB/sec)	160	115.2	67.2
OpenGL	4.1
Bus Support	PCI Express 3.0	PCI Express 2.0
Certified for Windows 7	Yes
Supported Technologies	3D Vision, 3DTV Play, CUDA, DirectX 11, PhysX, SLI, TXAA, Adaptive VSync, FXAA	3D Vision, 3DTV Play, CUDA, DirectX 11, PhysX, SLI, Adaptive VSync, TXAA, FXAA
SLI Options	2-way
3D Vision Ready	Yes
Maximum Digital Resolution	Up to 2560x1600
Maximum VGA Resolution	Up to 2048x1536
HDCP	Yes
HDMI	Yes