The Sun Microsystems-built Tsubame 1.0 began operation in 2006 achieving 85 TFLOPS of performance, it was the most powerful supercomputer in Japan and Asia at the time.
[1][2][3] The system consisted of 655 InfiniBand connected nodes, each with a 8 dual-core AMD Opteron 880 and 885 CPUs and 32 GB of memory.
Tsubame KFC added oil based liquid cooling to reduce power consumption.
The design is reported to utilize 2,160 Nvidia Tesla P100 GPGPU modules, in addition to Intel Xeon E5-2680 v4 processors.
[22] It was developed with HP, and consists of 240 nodes each with 2 AMD EPYC 9654 96 core processors, 768GiB of DDR5-4800 RAM, and 4 Nvidia H-100 GPUs.