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Fermi GPU:

Released in 2010, NVIDIA engineers set out to design a new GPU architecture. The architecture defines a GPU's building blocks, how they're connected, and how they work. Named after the Italian nuclear physicist Enrico Fermi, Fermi is to incorporate full geometry processing to the GPU, enabling a key DirectX 11 technique called tessellation with displacement mapping. Kepler GPU: Released in 2012, NVIDIA unveiled its plans to join the cloud gaming space. They’re developed specifically for the GRID and efficient in HPC setup. It has Graphics Processing Clusters (or GPCs), each of which contained a raster engine and four Streaming Multiprocessor (or SM) units. GPU Boost for automatic overclocking.

Maxwell GPU: Released in 2014, Maxwell-based GPU has new Dynamic Super Resolution (or DSR) that’s designed to put 4K-quality content on lower-resolution screens. Maximum Ram will 12gb (Titan X or Quadro M6000) whereas Pascal 32GB of video memory. Quad SLI in Maxwell upto 4 Graphics card whereas Pascal upto 8 Graphics Card. Pascal GPU: Released in 2016, Pascal is designed for the best scalability and Pascal will be priced at a premium because it is a more expensive product as HBM2 and NVLink included. HBM2 for Bandwidth and NVLink to improve unified virtual addressing scheme across the GPUs and between CPUs and GPUs. So it has capable of allowing data to move 5% to 12% faster across CPUs and GPUs compared to PCI-Express. Conclusion: Even after a new technology is introduced, sometimes the old one can be had at a much cheaper price and therefore continues to be a good price/performer since there is no end of life. 25 Times More Performance from Fermi to Kepler GPU 35 Times More Performance from Kepler to Maxwell GPU 10 Times More performance from Maxwell to Pascal GPU Also, when compare the three generations of Graphics card on their raw performance alone, the Pascal does better than the Kepler or Maxwell cards .

Architecture:       Fermi                     Kepler                     Maxwell                  Pascal

GPU Design:      SM                         SMX                        SMM                        SMP 

MaxVRAM:         1.5GB GDDR5     6GB GDDR5         12 GB GDDR5       16/32 GB HBM2

Max Bandwidth: 192 GB/s              336 GB/s                 336 GB/s                1 TB/s

NVIDIA Volta GPUs, successors to Pascal Architecture.

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