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Fermi is the codename for a GPU microarchitecture developed by Nvidia as the successor to the Tesla microarchitecture. It was the primary microarchitecture used in the GeForce GeForce 400 series and GeForce 500 series. It was followed by Kepler, and used alongside Kepler in the GeForce 600 series, GeForce 700 series, and GeForce 800 series, in the latter two only in mobile GPUs. In the workstation market, Fermi found use in the Quadro x000 series, Quadro NVS models, as well as in Nvidia Tesla computing modules. All desktop Fermi GPUs were manufactured in 40 nm, mobile Fermi GPUs in 40 nm and 28 nm. Fermi is the oldest microarchitecture from NVIDIA that can support DirectX 12. The architecture is named after Enrico Fermi, an Italian physicist. == Overview == Fermi Graphic Processing Units (GPUs) feature 3.0 billion transistors and a schematic is sketched in Fig. 1. *''Streaming Multiprocessor (SM)'': composed by 32 CUDA cores (see Streaming Multiprocessor and CUDA core sections). *''GigaThread globlal scheduler'': distributes thread blocks to SM thread schedulers and manages the context switches between threads during execution (see Warp Scheduling section). *''Host interface'': connects the GPU to the CPU via a PCI-Express v2 bus (peak transfer rate of 8GB/s). *''DRAM'': supported up to 6GB of GDDR5 DRAM memory thanks to the 64-bit addressing capability (see Memory Architecture section). *''Clock frequency'': 1.5 GHz (not released by NVIDIA, but estimated by Insight 64). *''Peak performance'': 1.5 TFlops. *''Global memory clock'': 2 GHz. *''DRAM bandwidth'': 192GB/s. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Fermi (microarchitecture)」の詳細全文を読む スポンサード リンク
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