The BIOSTAR Racing B550GTA motherboard listed the support of the Ryzen 4000 series Renoir APUs. However, it also hinted that these upcoming Accelerated Processing Units will not have PCIe lanes, and PCIe 4.0 Support is limited to Matisse. While it did list one Ryzen 9 CPU support, BIOSTAR didn’t hint any support for the upcoming
BIOSTAR is leaking a lot of information, lately. Since it is still up, I’d assume this no longer in NDA, at least for motherboard makers. The BIOSTAR B550GTA is one of the B550 motherboards that will be available on retail from June 16th. The highest-spec variant is expected to be an eight-core sixteen thread CPU with Vega-class on-chip graphics.
The State of APUs
It shouldn’t be surprised, based on the nature and market segment for these APUs. These Renoir APUs provide eight PCIe 3.0 lanes for the primary x16 slot. Since it is listed for the B550 motherboard, we should see compatible with X570. I wonder if AMD would bother having these support on the 400-series, due to its restricted requirement. I would be curious to see who and why would anyone pair these together.
Based on what is known, the Renoir chips are pretty impressive for its intended market segment. These Ryzen 4000 series APUs will have up to eight-core CPUs with Vega Compute Units. BIOSTAR again was kind enough to provide SKU variants in another leak. AMD may have omitted the PCIe 4.0 lanes for cost-cutting and lowering power consumption. Its also likely AMD decided such customers would care more about on-chip graphics. Previously launched APUs also had PCIe 3.0 lanes. Biostar’s listing emphasized x8 lane support with AMD Ryzen with Radeon Vega graphics (therefore, Renoir APUs).
Lack of future readiness?
But the PCIe lanes is not limited for the graphics card. The however is the lack of support for PCIe 4.0 NVMe M.2 SSDs, therefore limiting Renoir APU’s future upgrade readiness. Its also likely to see its microarchitecture copy-pasted for notebooks and mini-PCs, assuming anyone will be confident enough to make a plethora of variants.
AMD Ryzen 4000 APUs should be released by June with others. There’s the AMD A520 chipset coming on September, a couple of Ryzen 9 3000 series CPUs and the availability of B550 motherboards. Let us see how things work out in the end. Let us see how things unfold in the future.