NVIDIA GeForce GTX 870M, codenamed “N15P-GX”, is a high-end graphics chip, announced in late Q1 of 2014. It will be available in two models. The first one is part of the Maxwell architectural generation and relies on a GM107 core, constructed through a 28nm process. It consists of five shader blocks, known as SMM, and each of those has 128 smaller shader cores, also known as CUDA, for a total of 640 CUDA cores. The package also includes 40 texture cores and 16 raster cores. All of them operate at 1029MHz, but NVIDIA’s GPU Boost 2.0 can dynamically increase that frequency.
The second one is part of the Kepler generation and relies on a GK104 core, constructed through a 28nm process. It consists of six shader blocks, known as SMX, and each of those has 192 CUDA cores, for a total of 1520 CUDA, and of course, there are the additional 32 texture cores and 16 raster cores. They clock at 797MHz and GPU Boost 2.0 is available here as well.
Both have a 128bit bus and GDDR5 memory. NVIDIA GeForce GTX 860M supports DirectX 11.2, Pixel Shader 5.0, Optimus, SLI, PhysX, OpenCL 1.1, OpenGL 4.4, DirectCompute, CUDA, Blu-Ray 3D and 3D Vision. Memory bandwidth is 80.2GB/sec. Max resolutions (WxH) are 3840×2160 digital and 2048×1536 analog.
NVIDIA GeForce GTX 860M (4GB GDDR5, GM107) - technical specifications
|Manufacturing Process||28 nm|
|Base frequency||1029 MHz|
|Memory Frequency||5000 MHz|
|Memory bandwith||80 GB/sec|
|Date of release||12 March 2014|
|Power consumption||75 W|
|Maximum frequency||1085 MHz|
|Memory Capacity||4 GB|
|Memory bus||128 bits|
|Supported technologies||DirectX 11.2, Pixel Shader 5.0, Optimus, SLI, PhysX, OpenCL 1.1, OpenGL 4.4, DirectCompute, CUDA, Blu-Ray 3D, 3D Vision.|