From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

Zhaoxin (Shanghai Zhaoxin Semiconductor Co., Ltd.[1] Chinese: 兆芯; pinyin: Zhào xīn) is a fabless semiconductor company, created in 2013 as a joint venture between VIA Technologies and the Shanghai Municipal Government.[2] The company creates x86 compatible CPUs.[3] The term Zhào xīn means trillion core. The processors are created mainly for the Chinese market: the venture is an attempt to reduce the Chinese dependence on foreign technology.[4][5]


The architecture of the ZX family of processors is a continuation of VIA's Centaur Technology x86-64 Isaiah design.[6][1][7] The ZX-A and ZX-B are based on VIA Nano X2 C4350AL.[1][8] The ZX-B is identical to the ZX-A, except that it is manufactured by Shanghai Huali Microelectronics Corporation.[1][8] The ZX-C is based on the VIA QuadCore-E & Eden X4.[8]

Zhaoxin came to the North American & European technology press' attention with the ZX-D processor, and its plan for future products, in late 2017/early 2018.[2][3] Changes to the ZX-D include the integration of the northbridge like modern x86 designs, as well as additions of Chinese cryptographic functions.[7] The ZX series also has integrated GPU technology from VIA's S3 Graphics.[1][9] The ZX-D is noted to have roughly the performance of the Intel Silvermont (Avoton) processors.

The former ZX naming was dropped around 2018, for the KX designation for desktop processors, and KH designation for server processors.

The KX-6000 (formerly ZX-E) system on a chip was demonstrated to press in September 2018.[9] The chip has an integrated DirectX 11.1 compatible GPU.[9] The chip is reported to have a 50% performance increase over the KX-5000, and comparable performance to a 7th generation Intel i5 core processor from 2016.[9] In June 2019 the KH-6000 was reported to be built on a 16nm TSMC process, and have equivalent performance with the Intel Core i5-7400.[10][11]

The aim for the ZX-F series is for performance parity with the 2018 series Ryzen processor.[1][7]

Summary of architecture[edit]

Family Codename Year of introduction Process Cores Maximum speed Features Notes
ZX-A[3][6] 2014[1] 40nm Based on the VIA Nano X2 C4350AL[1]
ZX-B[3][6] 40nm Identical to ZX-A[1][8]
ZX-C[3] Zhangjiang[note 1] 2015[1] 28nm 4 2.0GHz AVX
Based on the VIA QuadCore-E & Eden X4
ZX-C+[3] Zhangiang 2016 28nm 4/8 2.0GHz 35W[12]
ZX-D / KX-5000[3][13] / KH-20k[12] Wudaokou[note 2] 2017 28nm[14] 4/8[14] 2.0GHz dual channel DDR4[12]
PCI Express 3.0
USB 3.1 (Gen 1 and 2)
USB 2.0
System-on-a-chip (SoC)[12]
Manufactured by TSMC
ZX-E / KX-6000[15] / KH-30k[12] Lujiazui[note 3] 2019 16nm[9] 8 (up to)[9] 3GHz (up to)[9] DDR4[9]
PCIe 3.0[16]
ZX-F / KX-7000[2] / KH-40k[12] 2019 (planned) 7nm (TBD)[12] DDR5
PCIe 4.0[16]
Family Codename Year of introduction Process Cores Maximum speed Features Notes


Zhaoxin processors have mainly been used for Chinese laptops.[11]

See also[edit]


  1. ^ a b c d e f g h i j "Talk Of VIA Getting Back Into The x86 CPU Space With Zhaoxin". Phoronix. Retrieved 24 April 2018.
  2. ^ a b c Chan, Leon (3 January 2018). "Via's Chinese Joint Venture Aims For Competitive Home-Grown X86 SOCs By 2019". Hexus.net. Retrieved 3 January 2018.
  3. ^ a b c d e f g Tyson, Mark (2 January 2018). "VIA and Zhaoxin ZX- family of x86 processors roadmap shared". Hexus.net. Retrieved 2 January 2018.
  4. ^ Clark, Don (21 April 2016). "AMD to License Chip Technology to China Chip Venture". Wall Street Journal. Retrieved 24 April 2018. The VIA/Shanghai Zhaoxin KX-5000 series of x86-compatible CPUs will never be sold outside of China to avoid an Intel lawsuit.","...will use the technology to develop chips for server systems to be sold only in China
  5. ^ Wu, Yimian (23 May 2018). "China Supports Local Semiconductor Firms By Adding Them To Government Procurement List". China Money Network. Retrieved 31 May 2018.
  6. ^ a b c "KaiXian (ZX/KX) - Zhaoxin". WikiChip. Retrieved 23 April 2018.
  7. ^ a b c Schor, David (21 January 2018). "Zhaoxin launches their highest-performance Chinese x86 chips". WikiChip. Retrieved 15 June 2018.
  8. ^ a b c d "What's going on with VIA/Zhaoxin and x86 processors?". Reddit. Retrieved 24 April 2018.
  9. ^ a b c d e f g h i Shilov, Anton (24 September 2018). "Zhaoxin Displays x86-Compatible KaiXian KX-6000: 8 Cores, 3 GHz, 16 nm FinFET". Anandtech. Retrieved 25 September 2018.
  10. ^ "Shanghai company produces first indigenous general-purpose 3.0GHz CPU - Global Times". www.globaltimes.cn. Global Times. 20 June 2019. Retrieved 21 June 2019.
  11. ^ a b Connatser, Matthew (20 June 2019). "Chinese-Produced Zhaoxin KX-6000 CPUs Purportedly Match Intel's Core i5-7400". Tom's Hardware. Tom's Hardware. Retrieved 21 June 2019.
  12. ^ a b c d e f g h i "兆芯开胜KH-20000新品点亮安全可靠技术和应用研讨会". EETrend. 28 March 2018. Retrieved 24 April 2018. Translated through Google Translate at https://translate.google.com/translate?hl=en&sl=zh-CN&tl=en&u=http://www.eetrend.com/article/2018-03/100078081.html
  13. ^ https://www.extremetech.com/computing/261359-via-technologies-subsidiary-zhaoxin-announces-new-line-x86-64-cpus
  14. ^ a b https://techreport.com/news/33018/via-joint-venture-reveals-kx-5000-x86-socs-for-chinese-pcs
  15. ^ "Zhaoxin to roll out 16nm CPU in 2018". digitimes.com.
  16. ^ a b "兆芯自主CPU路线图公布:将追平同期AMD、支持DDR5". MyDrivers.com. 2 January 2018. Retrieved 24 April 2018. Translated through Google Translate at https://translate.google.com/translate?hl=en&sl=zh-CN&tl=en&u=http%3A%2F%2Fnews.mydrivers.com%2F1%2F561%2F561579.htm


  1. ^ a reference to the Zhangjiang Hi-Tech Park station of Shanghai
  2. ^ a reference to the Wudaokou Station of Beijing
  3. ^ a reference to Lujiazui station of Shanghai

External links[edit]