Zhaoxin Launches KX-7000 High-3.7 GHz, 8 Cores, 32 MB Cache, Support for DDR5

    China-based semiconductor company Zhaoxin has recently launched its high-performance desktop CPU, the KX-7000. This marks a significant milestone in China’s journey towards semiconductor independence.

    The KX-7000 CPU boasts impressive, newcomer-type specifications, including 8 cores, a clock speed of 3.7 GHz, and a 32 MB cache. It also supports DDR5 memory, a feature that is expected to enhance the overall performance of the system.

    The KX-7000 is manufactured using a 7nm process, which is a significant upgrade from its predecessor, the KX-6000, which was fabricated on TSMC’s 16nm FinFET process. This advancement is part of Zhaoxin’s goal to achieve process parity with incumbent chip manufacturers.

    Zhaoxin is now introducing the KX-7000 CPU family, which is the next generation. It has a 2x performance boost over the KX-6000 series and uses the x86 Century Avenue core architecture. The latest I/O capabilities are provided by a completely new platform ecosystem that is included with the CPU family. However, we must begin by reviewing the CPU specifications.

    Zhaoxin KX 7000

    It was previously mentioned that the Zhaoxin KX-7000 CPUs use a 7nm process node. For the KX-7000/8 series, there are two variants in the lineup. The main distinction between the two models—which have eight cores and eight threads—is the clock speed. While the slower model operates at a 3.0 GHz base with a 3.6 GHz boost frequency, the faster model operates at a base clock of 3.2 GHz with a boost clock of up to 3.7 GHz. There are 32 MB of L3 cache and 4 MB of L2 cache on both chips. The CPU supports Dual-Channel DDR5-4800 & DDR4-3200 DIMMs up to 128 GB in capacity for memory. To put it briefly:

    • x86 Century Avenue Architecture (Likely 7nm)
    • 8 Cores / 8 Threads
    • 4 MB L2 / 32 MB L3 Cache
    • Up To 3.7 GHz
    • DDR5/DDR4 Support
    • 24 PCIe Gen4 Lanes
    • LGA Socket Type (Similar to LGA 1700)

    There are 24 PCIe Gen4 lanes, 2 USB4, 4 USB 3.2 Gen2, 2 USB 2.0, and 3 SATA III ports available on the I/O front. This time, Zhaoxin’s lineup of high-performance CPUs also includes an integrated GPU (iGPU). The most recent APIs, including DX12, OpenCL 1.2, and OpenGL 4.6, as well as H.265 HEVC/H.264 AVC support, are supported by the C-1190 iGPU. Along with having the newest instruction sets and capabilities (VT-x, BT-d 2.5, SSE4.2/AVX/AVX2), the CPUs also follow the C-States / P-States guidelines for thermal control and monitoring.

    The most intriguing feature is that the Zhaoxin KX-7000 CPUs can be used with an LGA socket that is 45 mm by 37.5 mm, the same dimensions as the LGA 1700 socket. The company’s renders for the launch PR also bear similarities to the current Intel Alder Lake and Raptor Lake chips.

    Although Intel doesn’t currently offer an E-Core-only desktop variant, they do have similar designs for the embedded and mobile markets. The N300-sounding 8-core, 8-thread chip has a much larger cache than the N300, and unlike these chips, Intel does not make use of chiplet architecture.

    Rebadging or re-engineering chips from major manufacturers like AMD & Intel is nothing new for Chinese CPU manufacturers. The business, by the name of Powerstar, rebranded and sold Intel’s 10th generation Comet Lake CPUs as its own earlier this year.

    Although Zhaxon has marked its KX-7000 CPUs as “Launched,” we haven’t necessarily seen any solutions built around them yet, despite the company’s announcement that they will be released soon. Those are probably going to be released in the upcoming year.

    Zhaoxin KX 7000
    Source: Zhaoxin

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