NVIDIA GeForce GTX 260M
The NVidia GeForce GTX 260M is a high-end graphics card of the 200M series based on the G92b core. Therefore, the 55nm chip is essentially a 9800M GTX with slightly higher clock rates (550/1375/950 vs. 500/1250/800). As a result, the 260M is more similar to the desktop 9800GT than the GTX 260.
As with all native DirectX 10 cards, the GeForce GTX 260M renders 3D images using "Unified Shaders". Dedicated pixel shaders and vertex shaders have been replaced with 112 stream processors in the 260M, which now take over most of the graphics workload. The shader units themselves are also clocked higher (1375 MHz) than the core chip.
In general, the performance of the GTX 260M is somewhat higher than the 9800M GTX due to the higher clock speed. For current DirectX 10 games such as Crysis, World in Conflict, Bioshock or Age of Conan, the 260M is sufficient for gameplay under medium to high detail settings. Meanwhile, older games should be able to run fluently under high resolutions and full details. VRAM can be up to 1024 MB GDDR3 at 950MHz in MXM 3.0 or 800MHz in MXM 2.0.
The GeForce GTX 260M integrates the PureVideo HD video decoder. The GPU is thus able to assist the CPU in the decoding of H.264-, VC-1-, MPEG2- and WMV9 videos.
HybridPower is a Windows Vista-only technology that allows users to switch between the integrated and dedicated graphics core for power-saving purposes. In the future, Nvidia intends to evolve the software for automatic switching depending on the active application (now known as Optimus). GeForceBoost is not supported with the GTX 260M as there would be no performance gain from combining with the integrated GPU.
The high current consumption of up to 75 Watts (of the entire MXM board) means that the GTX 260M can typically only be found in larger notebooks with loud and powerful cooling systems.
Compared with Desktop graphics cards, the GTX 260M is most similar to the GeForce 9800 GT.
|GeForce GTX 200M Series|
|Pipelines||112 - unified|
|Core Speed||550 MHz|
|Shader Speed||1375 MHz|
|Memory Speed||950 MHz|
|Memory Bus Width||256 Bit|
|Max. Amount of Memory||1024 MB|
|API||DirectX 10, Shader 4.0|
|Power Consumption||75 Watt|
|Transistor Count||754 Million|
|Features||HybridPower, PureVideo HD, CUDA, PhysX ready|
|Date of Announcement||02.03.2009|
|Link to Manufacturer Page||http://www.nvidia.com/object/product_gef...|
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