NVIDIA GeForce Kepler Packs Radically Different Number Crunching Machinery

Published: 10th Feb 2012, 01:34 GMT

NVIDIA GeForce Kepler Packs Radically Different Number Crunching Machinery | techPowerUp
NVIDIA is bound to kickstart its competitive graphics processor lineup to AMD’s Southern Islands Radeon HD 7000 series with GeForce Kepler 104 (GK104). We are learning through reliable sources that NVIDIA will implement a radically different design (by NVIDIA’s standards anyway) for its CUDA core machinery, while retaining the basic hierarchy of components in its GPU similar to Fermi. The new design would ensure greater parallelism. The latest version of GK104’s specifications looks like this:

SIMD Hierarchy

  • 4 Graphics Processing Clusters (GPC)
  • 4 Streaming Multiprocessors (SM) per GPC = 16 SM
  • 96 Stream Processors (SP) per SM = 1536 CUDA cores

TMU / Geometry Domain

  • 8 Texture Units (TMU) per SM = 128 TMUs
  • 32 Raster OPeration Units (ROPs)


  • 256-bit wide GDDR5 memory interface
  • 2048 MB (2 GB) memory amount standard


  • 950 MHz core/CUDA core (no hot-clocks)
  • 1250 MHz actual (5.00 GHz effective) memory, 160 GB/s memory bandwidth
  • 2.9 TFLOP/s single-precision floating point compute power
  • 486 GFLOP/s double-precision floating point compute power
  • Estimated die-area 340mm²

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