Model CPU/APU
PCIe LinkChipset PCIe
2.0 LanesCrossFire SLI SATA +
SATA ExpressUSB 3.1 Gen2 +
USB 3.1 Gen1 +
USB 2.0RAID StoreMI Overclocking TDP
(in Watt)Chipset
lithography
(in nm)X470 x4 Gen 3.0 8× Yes Yes 6 + 2 2 + 10 + 6 0,1,10 Yes Yes 4.8 55X370 x4 Gen 3.0 8× Yes Yes 6 + 2 2 + 10 + 6 0,1,10 No Yes 6.8 55B450 x4 Gen 3.0 8× Yes No 6 + 2 2 + 6 + 6 0,1,10 Yes Yes 4.8 55B350 x4 Gen 3.0 6× No No 4 + 1 2 + 6 + 6 0,1,10 No Yes 5.8 55A320 x4 Gen 3.0 4× No No 4 + 1 1 + 6 + 6 0,1,10 No No 5.8<= 55X300 x4 Gen 3.0 4× Yes No 2 + 0 0 + 4 + 0 0,1 No Yes 55A/B300 x4 Gen 3.0 4× No No 2 + 0 0 + 4 + 0 0,1 No No 55