Thursday, November 26th 2020
AMD Ryzen 7 5800U "Cezanne" Based on "Zen 3," Geekbenched
AMD's main competitor to Intel's 11th Gen Core "Tiger Lake" processor in the mobile space, the Ryzen 5800U, will introduce the same kind of generational IPC improvements over the Ryzen 4800U "Renoir" as the Ryzen 5000 desktop processors introduced over their Ryzen 3000 predecessors. Based on the 7 nm "Cezanne" silicon, the new Ryzen 7 5800U processor was put through Geekbench 5.1.1, where it yielded performance numbers of 1491 points single-threaded, and 6450 points multi-threaded. HotHardware comments that these numbers reflect a major IPC increase.
With the Ryzen 5000U series, AMD is taking a very confusing approach to the processor model stack, with half the parts based on the older "Zen 2" microarchitecture and "Lucienne" silicon, and the other half "Zen 3." The model number scheme goes as 5x00U, where if "x" is an odd number, the chip is "Zen 2" based, and if it's an even number, it is "Zen 3" based. For example, the 5800U is based on "Zen 3," whereas the 5700U is based on "Zen 2." Find the 5800U Geekbench 5 validation here. The Geekbench database listing also confirms that much like with the 8-core "Zen 3" chiplets on the Ryzen 5000 "Vermeer" desktop processors, "Cezanne" features an 8-core "Zen 3" CPU that does away with the 4-core CCX arrangement, and features a single 8-core CCX with a monolithic 16 MB L3 cache—a doubling in overall L3 cache amount compared to "Renoir," and a quadrupling in addressable L3 cache by each core.
Source:
HotHardware
With the Ryzen 5000U series, AMD is taking a very confusing approach to the processor model stack, with half the parts based on the older "Zen 2" microarchitecture and "Lucienne" silicon, and the other half "Zen 3." The model number scheme goes as 5x00U, where if "x" is an odd number, the chip is "Zen 2" based, and if it's an even number, it is "Zen 3" based. For example, the 5800U is based on "Zen 3," whereas the 5700U is based on "Zen 2." Find the 5800U Geekbench 5 validation here. The Geekbench database listing also confirms that much like with the 8-core "Zen 3" chiplets on the Ryzen 5000 "Vermeer" desktop processors, "Cezanne" features an 8-core "Zen 3" CPU that does away with the 4-core CCX arrangement, and features a single 8-core CCX with a monolithic 16 MB L3 cache—a doubling in overall L3 cache amount compared to "Renoir," and a quadrupling in addressable L3 cache by each core.
58 Comments on AMD Ryzen 7 5800U "Cezanne" Based on "Zen 3," Geekbenched
By altering the cDTP and cooling of my Zen1 laptop from 12-25W I can create a range of results that's three times faster at the high end than it is at the low end. Unless laptop test results are stipulated, in detail, that they are running on otherwise identical configs, the results are meaningless - and Geekbench is inconsistent run-to-run and version-to-version too, for added random noise.....
@W1zzard and crew, can you guys please make analysis how iGPU performance scales with memory speed on modern iGPU, e.g. Xe, Vega?