FeiTeng-1000 is third generation CPU from the YinHeFeiTeng (银河飞騰, YHFT) family. This CPU family has been developed by team directed by NUDT Prof. Xing Zuocheng. The first generation was binary compatible with the Intel Itanium 2. The second generation, the FT64, was a system on a chip with CPU and 64-bit stream processor. FT64 were used in YinHe (银河) supercomputers as accelerators.
The Tianhe-1A supercomputer uses 2,048 FeiTeng 1000 processors. Tianhe-1A has a theoretical peak performance of 4.701 petaflops. The FeiTeng-1000 is an eight-core processor based on the SPARC system and is used to operate service nodes on the Tianhe-1.
Tianhe-2 supercomputer uses 4096 processors Galaxy FT-1500 with 16 cores, OpenSPARC architecture based and 65 W TDP. They are made with 40 nm technology, processor cores work at 1.8 GHz Peak performance of FT-1500 is 115–144 GFLOPS; every core may execute up to 8 interleaving threads and supports 256-bit wide SIMD vector operations including Fused Mul-Add (FMA). Cache of this SoC works at 2 GHz frequency, there are 16 KB L1i, 16 KB L1d, 512 KB L2 per core, and shared 4 MB L3 cache. L3 cache has 4 segments (1 segment per block of 4 CPU cores), each of 1 MB with 32-way associative. Cache uses directory-based cache coherency protocol. FT-1500 also has:
- Links to connect several processors into NUMA machine
- 4 integrated DDR3 memory controllers
- 2 PCI-express controllers
- 10 Gbit Ethernet ports
- U.S. says China building 'entirely indigenous' supercomputer, by Patrick Thibodeau Computerworld, November 4, 2010 
- http://www.ee.ust.hk/ece.php/event/detail/671 «Prof. Xing and his team developed FT-1000/1000A/1500 series multi-core processors, the world’s first general-purpose 64-bit stream processor for scientific computing, and the world’s first CPU compatible with Intel Itanium processor.»
- The TianHe-1A Supercomputer: Its Hardware and Software by Xue-Jun Yang, Xiang-Ke Liao, et al in the Journal of Computer Science and Technology, Volume 26, Number 3, May 2011, pages 344-351 
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