Intel may be returning to Unified Core architecture
Intel’s foray into hybrid-core processors may be coming to an end. A job listing posted on LinkedIn shows the company is hoping to hire a senior CPU verification engineer to join its “Unified Core” team based in Austin, Texas. The listing is no longer accepting requests, and has only been live for about three days.
According to the job listing, Intel is hoping to find a new engineer who will be “responsible for driving and implementing the performance optimization of logical CPU designs through rigorous pre-silicon verification methods.”
What is the difference between Unified Cores and Hybrid Cores?
Intel’s hybrid core will be publicly revealed in 2021 with the announcement of 12th Gen Alder Lake chips. With Performance cores and Efficient cores, Intel’s hybrid approach was very similar to ARM’s big.LITTLE architecture.
Performance cores draw more power and mainly deal with large tasks in the front, while Efficient cores use less power and handle background tasks. In some cases, such as Intel’s Xeon lineup that is widely used in servers and datacenters, the chips are built entirely from Performance or Efficient cores.
Under this build, Intel’s multi-threaded throughput has improved, as has performance when handling background tasks. This setup also allowed Intel to increase the core count, which is why something like Intel’s Core Ultra 9 285K desktop chip has a whopping 24 cores (8 P cores and 16 E cores) and 24 threads.
Of course, dividing the architecture into Performance and Efficient cores requires additional management, provided in the form of Intel’s Thread Director. It keeps Intel chips humming and multi-threaded power strong, but it also adds complexity that can sometimes interfere with demanding tasks like gaming.
Going back to a Unified Core setup can solve some of those difficulties, and reduced programming overhead is always a good thing. With a single integrated core, Intel will also have more room for additions such as larger cache, larger NPUs, and larger iGPUs.
AMD does the same thing with its Zen 5 and Zen 5c cores, which use the same architecture and have the same IPC, but are tuned up or down depending on what is needed.
What do you think about Intel’s possible return to Unified Core architecture?
Are you looking forward to the Intel Unified Core build? Will it help the company compete with AMD’s desktop chips? Let me know in the comments section!
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