Impact of GPU PCI-e Bandwidth on Content Creation Performance

Impact of GPU PCI-e Bandwidth on Content Creation Performance gpu expansion slot AV1 decode Configurable to: M3 Pro with 12-core CPU and 18-core GPU, M3 Max with 14-core CPU and 30-core GPU Charging and Expansion SDXC card slot HDMI gpu slot Sorry if this is already answered somewhere, I was not able to find a clear answer I saw this graphic showing what each slot can be used

gpu slot Xpanders + graphics or GPU cards are the easiest and most affordable way to boost the compute power of any modern workstation or rackmounted host station

gpu slot width microSD card slot L4; L5 Speeds and Feeds Compute APU 6 nm AMD APU CPU: Zen 2 4c8t, 5GHz GPU: 8 RDNA 2 CUs, ( Expansion card riser specifications ; Slot 2, Full height- Half length, Full height-Full length, x16(double-width GPU), x8 ; Slot 3, Low profile- Half length