NVIDIA GeForce GTS 260M

The Nividia GeForce GTS 260M is a DirectX 10.1 graphics adapter for notebooks based on the 40nm GT215 core. It features 96 shader cores as the 9800M GT, but the memory bus is only 128 bit wide. To compensate, the certain models of the GTS 260M support faster GDDR5 VRAM. Essentially, the GTS 260M  is a higher clocked GeForce GTS 250M, but with a much higher power consumption (TDP) of 38 Watt.

The core of the GTS 260M is a GT215 based on the related desktop architecture (GTX 200 series). Compared to previous generations, Nvidia has improved the micro-architecture for further power-saving and performance increases. Therefore, the performance per shader unit of the GeForce card should be at least slightly better than older cards.

As with the GeForce 9800M GT, the GeForce GTS 260M features 96 stream processors that perform the graphics workload previously done by dedicated pixel- and vertex-shaders. The unified shaders of Nvidia are 1-dimensional vs.  5-dimensional shaders from AMD GPUs. As a result, graphics card between Nvidia and AMD Radeon cannot be directly compared by pure core count.

The GeForce GPU also supports CUDA, DirectX Compute, OpenCL and PhysX for tasks other than rendering images. For example, demanding processes like video encoding, physics calculations or mathematical tasks can be done noticeably faster with GPU stream processors compared to certain CPUs.

The mobile Nvidia graphics card has a built in video decoder called PureVideo HD with Video Processor 4 (VP4). Thus, the GPU supports the full decoding of H.264, VC-1, and now also MPEG-4 ASP (e.g. DivX or XviD). MPEG-1 is still not supported, but the decoding of this codec is quite trivial on a CPU.

In conjunction with the integrated Nvidia graphics (e.g. 9400M), the GTS 260M supports Hybrid-SLI (HybridPower and GeForceBoost). HybridPower is a Windows Vista-only technique for choosing between the integrated and dedicated graphics core for power-saving purposes. The technology was eventually superseded by Optimus, which allows for automatic graphics switching through drivers. GeForceBoost is not supported by the GTS 260M because the SLI combination with the integrated GPU would provide no significant performance gains.

The performance of the relatively powerful GeForce GTS 260M should be slightly above the GTS 250M because of the higher clock speed. Demanding DirectX 10 games, such as Crysis, should run fluently in medium to high details. Older or less demanding games should run fluently in both high detail settings  and resolutions.

Depending on the the used type of graphics memory (GDDR5 or GDDR3), the performance may differ between models and makes of the GTS 260M.

The power consumption of the Nvidia GPU is about 38 Watt TDP, which is significantly higher than the GTS 250M with only a 27 Watt TDP maximum. According to Nvidia, however, GPUs from the 200M series demand only half of the power when in Idle mode compared to the previous generation of Nvidia cards.

As far as we know, the GTS 260M was never utilized in a laptop, although the GPU was later refreshed and renamed to the Nvidia GeForce GTS 360M with a slightly higher core clock speeds. 

GeForce GTS 200M Series GeForce GTS 260M 96 @ 0.55 GHz 128 Bit @ 1800 MHz GeForce GTS 250M 96 @ 0.5 GHz 128 Bit @ 1600 MHz
Codename	N10E-GS
Architecture	GT2xx
Pipelines	96 - unified
Core Speed	550 MHz
Shader Speed	1375 MHz
Memory Speed	1800 MHz
Memory Bus Width	128 Bit
Memory Type	GDDR3, GDDR5
Max. Amount of Memory	1024 MB
Shared Memory	no
API	DirectX 10.1, Shader 4.1
Power Consumption	38 Watt
Transistor Count	727 Million
technology	40 nm
Features	DirectX Compute Support (Windows 7), CUDA, OpenCL, HybridPower, PhysX, SLI, Powermizer 8.0, MXM 3.0 Type-B
Notebook Size	large
Date of Announcement	15.06.2009
Information	396 Gigaflops
Link to Manufacturer Page	www.nvidia.com

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