Pages Menu
Categories Menu

Posted by on Sep 14, 2012 in Hardware Articles |

NVIDIA GK106: The new architecture-based GPU Kepler

NVIDIA GK106: The new architecture-based GPU Kepler

Yesterday launched its new GeForce GTX 660 , its first GPU based on the newest member of the family of GPUs based on architecture: GK106, graphics core that becomes the third member of this product line with the previously released GK104 and GK107 .


The Nvidia Kepler GPU line first generation has become one of the most exciting product lines that Nvidia has released a long time, because since Nvidia launched its first modular architecture first generation Fermi (GF100, GF104, GF106 and GF108 ) has been used to launch two very different variants: Big Fermi (GF100) and Fermi (GF104 and below), the first focused on GPU-accelerated computation and games, the second-optimized games.

Kepler first generation (expected to launch next year Nvidia Kepler GPUs its new second generation: GK110, GK114, GK116 and GK117), is the third generation modular architecture of Nvidia, unlike the first two generations (Fermi first and second generation) have a single variant (there will be no Big Kepler Kepler to launch second generation), which is rearranged in different ways to cover the various market segments. And among them the great importance Nvidia GPUs segmentode with prices below $ 300, and that is where the new is addressed.

NVIDIA GK106: The new architecture-based GPU Kepler image 2

The core GK106

If we mention broke Nvidia launches its traditional scheme with its current family of GPUs based on Kepler architecture first generation, the new kernel also breaks GK106 restructuring schemes of modular architectures Nvidia to possess unsymmetrical GPCs.

The architecture-based GPUs Kepler are formed by multiple calculation units called GPCs (Graphic Processing Cluster), which in turn are formed by two SMX (Next Generation Streaming Multiprocessors), each consisting of 192 shader processors (SPs) and 16 texture units.

NVIDIA GK106: The new architecture-based GPU Kepler image 3

GK106 has a total of 2540 million transistors and a size die of 214mm ², consists of three GPCs, two traditional and one shaped only by a SMX, with this strange configuration, GK106 has 960 shader processors and 80 texture units SMX over five GPCs organized into two symmetric (2 × 384 SPs) and one asymmetric (192 SPs), where we have:

384 (GPC1) + 384 (gPC2) + 192 (GPC3) = 960 SPs.

The memory controller GK106

GK106 memory controller has three dual-channel (64 bits and 192 bits each together), each rendering has eight units (ROPs, 24 in total), and is capable of supporting GDDR5 memory chip 32-bit configurations interleaved, ie four chips can be connected to a memory controller, and use this alternating between each pair of memory chips.

Because this is able to have 2GB of graphics memory installed eight 256MB memory chips each, so it works to 192 bits (144GB/s) for the first 1.5GB of memory, and 64-bit (48GB/s ) for its latest 512MB. This limitation in the bandwidth would not be present in a version with 3GB (12 memory chips).

Common features with other Kepler GPUs

Because GK106 is based on exactly the same architecture in which Kepler GK104 and GK107 are based, shares all its features like:

  • Support monitors 3 +1 (3 in surround mode and one desktop).
  • Engine hardware accelerated video Nvidia VP4 (Video Processor 4.0).
  • Unit hardware video transcoding NVENC (Nvidia Video Encoder).
  • Bus PCI Express (PCIe) 3.0.
  • API support for DirectX 11, OpenGL 4.x, OpenACC, OpenCL and CUDA.

Nvidia GK106 GPUs based

At the moment the only GPU based graphics core GK106 is the GPU GTX 660, but expect other GPUs like the GeForce is rumored GeForce GTX 650 Ti and those who are likely to own one (s) SMX and/or drivers disabled memory.

Tags: , , , , , , , , , , , , ,