The ARM Cortex-X1C is intended to run alongside the recently launched A78C big.LITTLE core that is used in laptops and adds key security technology.
第一个Cortex-X CPU，CORTEX-X1于2020年推出，已用于三星的Exynos 2100 SoC和Qualcomm的Snapdragon 888 5G移动平台，这两种移动平台都能为Samsung Galaxy S21系列的旗舰智能手机。最近，它已在Google Tensor芯片中的Google Pixel 6智能手机中使用。
”在性能方面,权力和区域(PPA), the Cortex-X1C is very similar to Cortex-X1, but also adopts features from Cortex-A78C to address the needs of specific applications and devices,” said Saurabh Pradhan, senior product marketing manager at ARM. “However, compared to Cortex-A78C, it delivers 22 percent better performance. Cortex-X1C also adopts features to enable ISA-compatible CPU cluster configurations of up to 8 big cores using an updated version of the DynamIQ Shared Unit (DSU).
这种X1C和A78C的组合允许芯片设计人员构建从高性能桌面缩放到最大性能和效率的CPU集群。这将看到一个带有八个大X1C核心的群集沿A78C集群与大型核和其他优化的能效和电池寿命一起运行。
Cortex-X1C采用ARMv8.6中的高级指针认证（PAC），通过最小化攻击表面来改善数据和设备安全性。这可确保设备上的任何数据都是安全的。PAC也显着减少了利用，防止攻击者控制返回定向编程（ROP）中的软件控制流程，这减少了超过60％的剥削，并跳转编程（JOP），这减少了50多个漏洞百分。降低潜在的利用对于确保在安装第三方应用程序时，确保用户的数据保持安全。
Cortex-X1C is designed for more demanding workloads, providing an increased L3 cache memory of 8MB and eight big core support so it can run eight high-performance threads in parallel. Multi-OS support
