AMD’s new CPUs will halve your SSD speed and slash GPU performance

It’s not wanting good for the gaming efficiency of AMD’s new low-end Ryzen 8000 CPUs with built-in graphics. Based on the newest info, new APUs primarily based on the AMD Phoenix 1 core will solely have the ability to run PCIe 4.0 SSDs at half their potential high velocity. Not solely that, however gaming efficiency when utilizing a separate graphics card may also be slower than common.

AMD launched the Ryzen 7 8700G at CES, and this new Phoenix 2 chip appears to be like like a contender for our best gaming CPU information. Nonetheless, AMD additionally launched two different lower-end Phoenix 1 CPUs with built-in Radeon graphics (which AMD calls APUs) on the similar time, and it appears to be like 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 through motherboard maker Gigabyte, which has listed a number of the limitations for AMD’s new Ryzen 8000 APUs within the specs record 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 knowledge, 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 to be like as if this can have a critical impression on the velocity of elements you put in in your motherboard.

This implies AMD’s lower-end APUs will solely have the ability to run a PCIe 4.0 SSD with two lanes, relatively than 4, halving the quantity of bandwidth accessible. It will successfully give your SSD a top-speed ceiling of 4GB/s (much less in observe), which is an issue when PCIe 4.0 SSDs such because the Samsung 990 Pro can learn at as much as 7,450MB/s.

Not solely that, however it appears to be like as if each the Ryzen 5 8500G and Ryzen 3 8300G will solely have the ability to run a graphics card with 4 PCIe 4.0 lanes, which provides you with solely 1 / 4 of the bandwidth of a common 16x PCIe 4.0 slot. This received’t be a lot of an issue in case you’re utilizing a low-end GPU that solely has a 4x interface anyway, however it can positively 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 can in flip have a major unfavorable impact on gaming efficiency in case you’re utilizing the built-in graphics.

The Ryzen 5 8500G and Ryzen 3 8300G each have a special core setup to the Ryzen 5 8600G and Ryzen 7 8700G. Whereas the latter two use the easy 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 to be like 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 in case you’re seeking to purchase the best SSD for gaming, or get the best graphics card in your PC.