Originally developed as a graphics processor Larrabee project was subsequently renamed as Xeon Phi and received the status of computing accelerator. Today, Intel reported that a specialized version of the accelerator Xeon Phi is a part of a supercomputer Stampede. Relevant device were named SE10X and SE10P, depending on the cooling type- product with the letter (P) has a stripped fan.
Accelerators in this configuration have 61 core, clocked at 1100 MHz. The total amount of cache up to 5.30 MB , memory capacity is 8 GB, using a 512-bit memory interface. Peak performance in floating point double precision is 1.7 teraflops. The TDP of SE10X and SE10P models is 300 watts.
For a wider range of customers we have the accelerator Xeon Phi 5110P, which is distinguished by 60 cores clocked at 1.05 GHz and TDP value of more than 225 w. The amount of memory is still equal to 8 GB cache size is reduced to 30 MB, uses 512-bit memory bus. Peak performance of the solution is equal to 1.1 teraflops. Xeon Phi 5110P cost $ 2649, the product will be available towards the end of January.
Xeon Phi Accelerator 3100, which will be presented in the next six months, has the memory bandwidth only 240 GB / s to 320 Gb / s (in Xeon Phi 5110P). Capacity will be reduced to 6 GB, peak performance in floating point double precision over 1 teraflops. The cache will reach 28.5 MB. The price of this accelerator will not exceed $ 2000, it will be available in versions with two types of cooling systems. All Knights Corner accelerators are available on 22-nm technology and equipped with GDDR5 memory . Total number of transistors reaches five billion.
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