[bayindirh]

> Then why are only GPUs unavailable?

Because they're harder to build, and there is some serious HPC capacity is being built up right now around the world, which buys these chips buy thousands.

Same entities which hoard Tesla GPUs are not interested in unregistered RAM, consumer SSDs and CPUs. Unfortunately, a run of the mill Tesla is not much different from a GeForce. OTOH, RAM, CPU and SSD for these applications are built from different parts.