# C1

> supercomputer (HR650X)

**Wikidata**: [Q74591037](https://www.wikidata.org/wiki/Q74591037)  
**Source**: https://4ort.xyz/entity/c1-q74591037

## Summary
C1 is a supercomputer located in the People's Republic of China. Manufactured by Lenovo as an HR650X model, it became operational in 2019. The system runs on the Linux operating system and utilizes Intel Xeon Gold processors to achieve a sustained performance of 2.43 petaflops.

## Key Facts
- **Instance Of**: Supercomputer
- **Manufacturer**: Lenovo
- **Model**: HR650X
- **Inception**: 2019
- **Country**: People's Republic of China
- **Operating System**: Linux
- **CPU**: Intel Xeon Gold 6133 (20 cores, 2.5 GHz)
- **Total Processor Cores**: 59,200
- **Performance (Rmax)**: 2.43 petaflops
- **Peak Performance (Rpeak)**: 4.75 petaflops
- **Initial TOP500 Rank**: 97th (June 2019)

## FAQs
### Q: Who built the C1 supercomputer?
A: The C1 supercomputer was manufactured by Lenovo, a Chinese multinational technology company that specializes in computer hardware and electronics.

### Q: What kind of processors does C1 use?
A: C1 is equipped with Intel Xeon Gold 6133 processors. Each CPU has 20 cores and runs at a clock speed of 2.5 GHz, with a total of 59,200 cores in the entire system.

### Q: How powerful is the C1 supercomputer?
A: C1 has a theoretical peak performance (Rpeak) of 4.75 petaflops. Its sustained performance, as measured by the Rmax benchmark, is 2.43 petaflops.

## Why It Matters
C1 represents a significant high-performance computing system developed by a major global manufacturer, Lenovo, and deployed in China. Its entry onto the TOP500 list in 2019, ranking 97th, showcased a powerful and competitive configuration based on Intel's Xeon Gold architecture. The system is an example of the hardware used to tackle large-scale computational problems in science and industry during its time.

The evolution of C1's ranking over the years, from 97th in June 2019 to 457th as of early 2025, illustrates the rapid and continuous advancement in the supercomputing field. While no longer at the forefront, it remains a functional high-performance system and serves as a data point in the history of supercomputer development, highlighting the architecture and performance standards of the late 2010s.

## Notable For
- **TOP100 Ranking**: Achieved a rank of 97th on the TOP500 list of the world's most powerful supercomputers in June 2019.
- **Specific Hardware Configuration**: Built as a Lenovo HR650X system, it is distinguished by its use of 59,200 Intel Xeon Gold 6133 processor cores.
- **Petaflop-Scale Performance**: The system is capable of petaflop-scale computing, with a measured sustained performance (Rmax) of 2.43 petaflops.

## Body
### System Architecture and Hardware
- **Manufacturer**: Lenovo
- **Model**: HR650X
- **CPU**: The system uses Intel Xeon Gold processors, specifically the Xeon Gold 6133 model.
- **CPU Specifications**: Each processor has 20 cores and a clock speed of 2.5 GHz.
- **Total Cores**: The entire C1 system contains a total of 59,200 processor cores.
- **Operating System**: C1 runs on the Linux operating system.

### Performance and Ranking
- **Inception**: The system was first listed in 2019.
- **Location**: C1 is located in the People's Republic of China.
- **TOP500 System ID**: 179657
- **Sustained Performance (Rmax)**: 2.43 petaflops
- **Peak Performance (Rpeak)**: 4.75 petaflops
- **Maximum Problem Size (Nmax)**: 5,330,688
- **TOP500 Ranking History**:
    - **June 2019**: Ranked 97th
    - **March 2025**: Ranked 457th

## References

1. [TOP500](https://www.top500.org/system/179657/)
2. [Source](https://www.top500.org/lists/top500/list/2024/11/?page=5)