ARM has introduced new features to the ARMv8.1-A architecture, enhancing both security and performance of the chip. This new architecture is an evolution of the existing ARMv8-A, which is already used in devices like the Apple A8 chip and various Android processors. The improvements are expected to have a more significant impact on larger devices compared to mobile ones, according to David Brash, head of the ARM Architecture and Technology Group.
The new architecture will also influence server performance, as ARM aims to gain a stronger presence in the server chip market. Companies like AMD, Cavium, AppliedMicro, and Qualcomm are either developing or investing in ARM-based server chips. The first test chips based on the ARMv8.1-A architecture are expected to be available next year.
Apple was the first to introduce a 64-bit chip using the ARMv8-A architecture, and it may soon adopt the newer version. However, it often takes time for new architectures to reach consumer devices. For example, the ARMv8-A was launched in 2011, but it wasn't widely used until the iPhone 5S in 2013.
In his blog post, Brash emphasized that while architectural upgrades are important, they take years to fully integrate into chip cores. He also noted that other design choices can have a bigger impact on system performance.
To date, ARM has issued 57 licenses for the ARMv8-A architecture, and more products featuring these chips are expected to hit the market in the coming years. These include 64-bit smartphones, tablets, and other advanced devices.
The ARMv8.1-A upgrade focuses on memory addressing, security, virtualization, and data throughput. Software designed for the ARMv8-A architecture will be compatible with the new version. Additionally, ARM has collaborated with partners during the development of this update, ensuring a smoother transition and broader support across the industry.
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