2023-11-03 13:57:25
AMD unveils a new processor architecture for laptops, the Zen 4C, a response to Intel’s hybrid design adopted two years ago.
AMD has just unveiled a new processor architecture for smaller laptops, ultrabooks. With these two new CPUs, the Ryzen 5 7545U and Ryzen 3 7440U, the manufacturer promises all the advantages of the big.LTTLE technology adopted by Intel, without the disadvantages.
The manufacturer has also revealed that this new architecture was implemented in the Z1 version of the Asus ROG Ally released a few weeks ago, and should adapt perfectly to future portable consoles running on a Ryzen mobile processor.
Identical Zen 4c cores, but smaller
The big novelty of this architecture lies in the Zen 4c cores, which are a 35% more compact version of the classic Zen 4 cores.
According to AMD, these new cores offer the same number of instructions per cycle (IPC), but for reduced energy consumption below 15W. Their smaller size also allows them to be, ultimately, more numerous on the integrated circuit.
The Zen 4 cores are more efficient above a power consumption of 20W, with a higher maximum frequency and optimization for single-threaded tasks. AMD insists that these two cores are identical in terms of instruction sets, cache and even latency.
AMD gently tackles Intel
The manufacturer makes no secret of it: it is Intel that is being targeted with this hybrid architecture. The latter has used high-performance, low-consumption cores since its 12th generation of Alder Lake processors, with fundamental differences between the two types of cores.
AMD compares itself directly to Intel // Source: AMD
With Zen 4c, AMD does not distinguish between the two types of cores, which both offer the same level of performance at equal frequency. Furthermore, unlike Intel and its Thread Director, AMD only uses the scheduler of the operating system to dynamically assign a particular task to a particular core.
For the moment, AMD is integrating this new architecture into its more modest processors intended for ultrabooks, the Ryzen 5 7545U and Ryzen 3 7440U. But we can bet that it will be gradually implemented in the rest of the range by 2024.
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