|Power dissipation||640 W|
PEZY-SC4 (PEZY Super Computer 4) is a fifth generation many-core microprocessor developed by PEZY set to be introduced in the early-2020s. This chip, which is planned to operate at 1.6 GHz, will incorporate 16,384 cores and dissipate 640 W. The PEZY-SC4 will power the ZettaScaler-4.x series of supercomputers.
The SC4 will be introduced by PEZY along with their fourth-generation ZettaScaler-4.0 supercomputer series. The SC4 is set to incorporate 16,384 cores along with 8-way SMT support for a total of 131,072 threads, twice as many cores as its predecessor.
Operating at 1.6 GHz, the PEZY-SC4 will have a peak performance of 105 TFLOPS (single-precision) and 52.5 TFLOPS (double-precision) while consuming around 640 Watts. The PEZY-SC4 is expected to be manufactured on TSMC's 5 nm process.
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For main memory, the PEZY-SC4 supports 4 channels of 64-bit DDR5-4000 memory with ECC support for a total aggregated bandwidth of 107.3 GiB/s
Integrated Memory Controller
In addition to main memory bandwidth, the PEZY-SC4 supports Wide-IO with a width of 4,096 bit, twice of the SC3. As with the SC3, the SC4 will use ThruChip Interface (TCI) interfaces in order to communicate with the TCI-DRAM chips. This chip incorporates 8 interfaces, operating at 3 GHz for a bandwidth of 2.8 TiB/s per interface for a total aggregated bandwidth of 22.35 TB/s - twice the bandwidth of its predecessor.
Integrated Memory Controller
With the SC4, PEZY plans to expand on the custom optics interface that was designed for the PEZY-SC3 for up to 512 lanes.
|base frequency||1,600 MHz (1.6 GHz, 1,600,000 kHz) +|
|core count||16,384 +|
|core voltage||0.55 V (5.5 dV, 55 cV, 550 mV) +|
|die area||740 mm² (1.147 in², 7.4 cm², 740,000,000 µm²) +|
|first announced||2016 +|
|first launched||2020 +|
|full page name||pezy/pezy-scx/pezy-sc4 +|
|has ecc memory support||true + and false +|
|instance of||microprocessor +|
|market segment||Supercomputer +|
|max memory bandwidth||119.2 GiB/s (122,060.8 MiB/s, 127.99 GB/s, 127,990.025 MB/s, 0.116 TiB/s, 0.128 TB/s) + and 22,886.4 GiB/s (23,435,673.6 MiB/s, 24,574.085 GB/s, 24,574,084.881 MB/s, 22.35 TiB/s, 24.574 TB/s) +|
|max memory channels||4 + and 8 +|
|model number||PEZY-SC4 +|
|peak flops (double-precision)||52,428,800,000,000 FLOPS (52,428,800,000 KFLOPS, 52,428,800 MFLOPS, 52,428.8 GFLOPS, 52.429 TFLOPS, 0.0524 PFLOPS, 5.24288e-5 EFLOPS, 5.24288e-8 ZFLOPS) +|
|peak flops (half-precision)||209,715,200,000,000 FLOPS (209,715,200,000 KFLOPS, 209,715,200 MFLOPS, 209,715.2 GFLOPS, 209.715 TFLOPS, 0.21 PFLOPS, 2.097152e-4 EFLOPS, 2.097152e-7 ZFLOPS) +|
|peak flops (single-precision)||104,857,600,000,000 FLOPS (104,857,600,000 KFLOPS, 104,857,600 MFLOPS, 104,857.6 GFLOPS, 104.858 TFLOPS, 0.105 PFLOPS, 1.048576e-4 EFLOPS, 1.048576e-7 ZFLOPS) +|
|power dissipation||640 W (640,000 mW, 0.858 hp, 0.64 kW) +|
|process||5 nm (0.005 μm, 5.0e-6 mm) +|
|supported memory type||DDR5-4000 +|
|thread count||131,072 +|