If you keep up with the PC CPU industry and the recent history of AMD and its larger rival Intel, you are aware that semiconductor change is typically gradual. But occasionally, we observe significant increases in performance. This is one of those occasions for AMD and its new Ryzen 7000 line of CPUs.
There's no doubt about it: If you were buying or building a PC that could utilise many cores, the outgoing Ryzen 5000 series of processors, led by the Ryzen 9 5950X, was a very strong, competitive group of possibilities. With much higher performance in both single-threaded and multi-threaded tasks, Ryzen 7000 goes even further.
Based on AMD's newest architecture, Zen 4, is the Ryzen 9 7950X. This new architecture, like the Zen 3 before it, continues AMD's chiplet-based design strategy, giving it a high-level appearance resembling all of the preceding Zen CPU designs. AMD has nevertheless been able to significantly increase performance thanks to modifications in the core architecture and a switch to a new 5nm manufacturing process. In general, the Zen 4 is expected to be larger and more durable than the Zen 3. Compared to the previous Zen 3 design, Zen 4 has a more robust front end with hardware that is capable of making two branch-per-cycle predictions.
The load queue is 22% bigger and the L2 DTLB cache is 50% bigger on the load/store end of the chip, which also features larger caches. The execution engines in the core also include larger register files for integer and floating-point computations, as well as instruction retire queues that are 25% bigger. To help keep the cores fed with data, the chip's overall buffer size was increased, and the total capacity of the L2 cache was increased from 512K to 1,024K per core.
Additionally, Zen 4 received a few new instructions, the most significant of which were AVX-512-related. Not everyone will find these beneficial, but if you work with a lot of compute-intensive jobs, they may be quite helpful to you if your software supports AVX-512.
AMD asserts that these architectural modifications collectively offer a 13% increase in IPC throughput on Zen 4 CPUs. AMD estimates that this will result in an average 29% performance boost for single-threaded workloads, in addition to significant increases in clock speed. While all of the Zen 4 Ryzen 7000 CPU cores are manufactured using a 5nm TSMC process, not all of the processor's parts are produced using this technique.