It’s not wanting good for the gaming efficiency of AMD’s new low-end Ryzen 8000 CPUs with built-in graphics. In line with the most recent info, new APUs based mostly on the AMD Phoenix 1 core will solely be capable of run PCIe 4.0 SSDs at half their potential high pace. Not solely that, however gaming efficiency when utilizing a separate graphics card may even be slower than typical.
AMD launched the Ryzen 7 8700G at CES, and this new Phoenix 2 chip appears like a contender for our greatest gaming CPU information. Nevertheless, AMD additionally launched two different lower-end Phoenix 1 CPUs with built-in Radeon graphics (which AMD calls APUs) on the identical time, and it appears as if these APUs solely supply a severely restricted variety of PCIe lanes. The CPUs in query are the six-core Ryzen 5 8500G and quad-core Ryzen 3 8300G.
This info comes by way of motherboard maker Gigabyte, which has listed a few of the limitations for AMD’s new Ryzen 8000 APUs within the specs checklist for its B650E Aorus Elite X AX Ice motherboard. Within the “Storage Interface” part it says that Phoenix 1 processors “assist PCIe 4.0 x4/x2 SSDs,” whereas Phoenix 2 processors solely assist assist “PCIe 4.0 x2 SSDs.”
This information, which was noticed by wccftech, provides some perception into the impression of the CPU specs, which have already been revealed by AMD. For instance, the Ryzen 5 8500G solely has ten usable PCIe 4.0 lanes, in contrast with 16 on the Ryzen 7 8700G, and it appears as if this may have a severe impression on the pace of elements you put in in your motherboard.
This implies AMD’s lower-end APUs will solely be capable of run a PCIe 4.0 SSD with two lanes, moderately than 4, halving the quantity of bandwidth accessible. It will successfully give your SSD a top-speed ceiling of 4GB/s (much less in apply), which is an issue when PCIe 4.0 SSDs such because the Samsung 990 Professional can learn at as much as 7,450MB/s.
Not solely that, nevertheless it appears as if each the Ryzen 5 8500G and Ryzen 3 8300G will solely be capable of run a graphics card with 4 PCIe 4.0 lanes, which offers you solely 1 / 4 of the bandwidth of a typical 16x PCIe 4.0 slot. This gained’t be a lot of an issue should you’re utilizing a low-end GPU that solely has a 4x interface anyway, however it’ll undoubtedly impression the efficiency of high-end GPUs, such because the GeForce RTX 4090.
To make issues worse, the official specs lists additionally present the Ryzen 5 8500G solely having assist for a single reminiscence channel. It will impression reminiscence bandwidth, which is able to in flip have a major damaging impact on gaming efficiency should you’re utilizing the built-in graphics.
The Ryzen 5 8500G and Ryzen 3 8300G each have a distinct core setup to the Ryzen 5 8600G and Ryzen 7 8700G. Whereas the latter two use the simple Zen 4 structure, the Ryzen 5 8500G solely has two Zen 4 cores, together with 4 Zen 4c cores, and the Ryzen 3 8300G cuts this down additional, with only a single full Zen 4 core and three Zen 4c cores.
These Zen 4c cores are already utilized in AMD’s EPYC server CPUs, they usually have decrease clock speeds and fewer cache than normal Zen 4 cores. It appears as if this use of Zen 4c cores additionally ends in a dramatic discount within the variety of PCIe lanes accessible.
Within the meantime, try our full shopping for guides should you’re trying to purchase one of the best SSD for gaming, or get one of the best graphics card in your PC.
