AMD Ryzen 7 5800 non-X + PBO = 5800X
Yesterday AMD introduced its Ryzen 5000 mobile processor series based on Zen3 architecture. Hidden within the press release and not publicly announced during the stream, AMD also revealed two desktop parts lacking the X-branding.
AMD Ryzen 9 5900 and Ryzen 7 5800 are basically power limited variants of the X series CPUs. The Ryzen 9 5900 is a 12-core CPU featuring a base clock of 3.0 GHz and a boost up to 4.7 GHz. This CPU features 70MB of total cache and is locked to 65W of power.
The Ryzen 7 5800 non-XT is an 8-core CPU with 16-threads. The CPU has a 400 MHz lower base clock and a 100 MHz lower boost clock compared to X-variant. The CPU has 65W TDP which is 40W lower than the full-speed variant.
According to WolStame, who is Lenovo China Gaming Desktop Product Planning Manager, the Ryzen 7 5800 might be the most interesting CPU released thus far in 2021. This CPU is essentially a power-limited version of the 5800X, a power that can easily be unlocked through some PBO (Precision Boost Overdrive) optimizations.
The CPU default single-core frequency is 4.55 GHz, 100 MHz lower than 5800X. Interestingly the multi-core frequency is identical on both CPUs. The PBO-optimized single-core frequency is easily the same as the 5800X, reaching 4.79 GHz.
Unfortunately, the CPU is only available to OEM, such as Lenovo. Those CPUs will be sold exclusively in prebuilt systems, however, there is a good chance you will end up seeing one on eBay at some point. In such case, you should easily be able to overclock the CPU through AMD’s own Ryzen Master software.
The CPU has been tested on Lenovo 7000P desktop featuring the B550 motherboard.
|AMD Ryzen Processors Specifications|
|VideoCardz.com||Cores / Threads||Base Clock||Boost Clock||TDP||MSRP|
|AMD Ryzen 5000 ‘Vermeer’ – Zen3|
|Ryzen 9 5950X|
|Ryzen 9 5900X|
|Ryzen 9 5900|
|Ryzen 7 5800X|
|Ryzen 7 5800|
|Ryzen 5 5600X|