DDR5 you are looking at around 40 gigabits / second for single channel setups.

Oh wait someone stacked 7 full screen transparent terminal windows on top of each other and now you've exceeded memory bandwidth.

Meanwhile any GPU from the last decade (15+?) years will handle dozens of transparent objects on top of each other.

I'm 100% in love with old school but sometimes I just have to admit newer HW is better.