AMD announced today that it has seen an 18% increase in instructions per clock (IPC) growth over the last year for certain workloads. The company said that this was in part due to the architectural improvements in its "Zen 2" and "Zen 3" microarchitectures. The company also said that it averaged (or used a geomean, technically) about 13 percent more instructions per clock than the Zen 3/Ryzen 5000 architecture. That comparison used a fixed 4GHz frequency, with 8 cores and 16 threads, to generate a comparable result for each architecture.
AMD's new processors are the first to be built using the company's "Zen 4" architecture. They say that their "worst" Ryzen 7000 processor will outperform Intel's best 12th-gen "Alder Lake" chip. These new processors will be available in laptops and servers, probably starting in January 2023.
AMD's new Ryzen 7000 processors are the first to use the company's 5nm process and AM5 socket. This means that enthusiasts will need to buy new motherboards to accommodate the new CPUs, but AMD is hoping that AM5 will be just as long-lasting as the AM4 socket used by all previous Ryzen processors.
The story of the new Ryzen 7000 processors is all about raw performance. The Ryzen 9 5950X had a top burst clock of 4.9GHz, but the new 7950X has a base clock of 4.5GHz and can boost up to 5.7GHz when needed. That's 800MHz more than the 5950X. In fact, all four processors in the Zen 4 desktop family - the Ryzen 7600X, 7700X, 7900X, and 7950X - have similar performance.
Even AMD was caught off-guard by how successful its new Ryzen 7000 processors were. Dr. Lisa Su, chief executive of AMD, told analysts and reporters at a press event in Austin, Texas that its designers had only expected 8-10% improvements in instructions per clock (IPC) compared to the Ryzen 5000/Zen 3 chips. The fact that the new processors performed so much better than anticipated is a testament to the hard work of the design team and a cause for celebration among consumers.
In reality, AMD's IPC was 13 percent higher which, combined with the Ryzen 7000's increased clock speed, resulted in an overall 29 percent single-threaded performance increase compared to the Ryzen 5000. Of course, AMD is claiming a performance advantage over Intel - more specifically, a 5 percent gaming improvement over Intel's 12th-gen Alder Lake chips.
Inputs : PCWorld
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