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ARM announced new and updated ARMv9 processor cores, as well as new integrated graphics processors. The company talked about the Cortex-X925, Cortex-A725 and updated Cortex-A520 cores. Immortalis-G925, Mali-G725 and Mali-G625 appeared from video chips.
Cortex-X925, Cortex-A725 and Cortex-A520
In 2024, ARM is focused on improving on last year's ARMv9.2 architecture. The company is moving all of its newest cores to an improved 3nm process technology, which should provide performance gains in energy efficiency and scalability. The new ARM solutions are tailored for mobile AI applications and add support for 64-bit AArch64 instructions. Developments are focused not only on Android gadgets, but also on laptops with Windows.
The company promises speeds of over 3.6 GHz along with “optimal power, performance and area.” The ARMv9.2 architecture in the 3nm process is also significantly improved with a new larger Cortex X925 core, which ARM considers the new top of the line for mobile devices. The architecture has been optimized for higher clock speeds and better efficiency levels, delivering more processing power per watt. This is achieved through several architectural innovations, including enhanced execution pipelines, improved branch prediction, and enhanced out-of-order execution capabilities. The result of the improvements is an increase in the number of instructions per cycle. Cortex X925 cores will operate at up to 3.8 GHz.
The tests presented by ARM, which should be taken with a critical eye, show significant gains in single-threaded and multi-threaded performance, making these new solutions ideal for a variety of programs. The company even claims leadership of the Cortex X925 performance cores in the single-threaded test and victory over Intel and AMD. ARM also talks about extended battery life thanks to energy efficiency and better thermal management, improved security and AI performance. The company introduced new KleidiAI libraries for developers.
Cortex-A925 delivers significant performance improvements over the previous generation, up to 36% per core, and up to 46% improvement in AI performance over Cortex-X4. The Cortex-A725 core should be an updated Cortex-A720 with a 35% improvement in performance and 25% improvement in power efficiency. The Cortex-A520 upgrade brings a 15% increase in power efficiency and a move to 3nm. The powerful Cortex X925 cores, the balanced Cortex A725 and the energy-efficient updated Cortex A520 will receive powerful graphics starting with the Immortalis G925.
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Graphics Immortalis-G925, Mali-G725 and Mali-G625
The new ARM Immortalis-G925, Mali-G725 and Mali-G625 GPUs will cover a variety of consumer devices, from flagship and low-cost smartphones to smartwatches and other devices.
Immortalis-G925 with 10 or more cores, designed for high-end devices such as flagship smartphones. The Mali-G725 scales from 6 to 9 cores and is designed for premium phones, offering the same API support as the older model, but optimized for lower-end devices. Mali-G625 will have from 1 to 5 cores, it is aimed at smartwatches and budget smartphones.
The new GPUs are the second iteration of the 5th generation of integrated graphics introduced by ARM in 2023. Compared to last year's Immortalis-G720, the G925 should deliver 37% more frames per second in games along with 30% less power consumption. The company claims a 49% increase in Genshin Impact, +49% in Roblox and from 20% to 72% in other games.
To meet the demand for more complex geometry in games, Immortalis-G925 introduces a new fragment prepass mechanism. It eliminates the need for games to sort any objects or primitives and reduces the number of updates while processing geometry workloads. This results in a 43% reduction in rendering cycles.
Immortalis-G925 improves ray tracing performance by up to 52% on complex objects. Through internal testing of ray tracing content, we continue to improve ray tracing performance. Additionally, developers can slightly reduce the transparency precision of game scenes to get up to a 52% performance boost along with a 57% reduction in memory usage. The Immortalis-G925 now supports 50% more shader cores, bringing its top-end configuration to 24 cores compared to 16 in the previous generation. ARM has also paid a lot of attention to improving artificial intelligence processing.
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Sources: ARM, AnandTech, TechPowerUp, VideoCardz
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