A modern Intel CPU has crazy throughput, but only on moderately powerful systems. So basically that means a mid to high-end mini PC, desktop, or laptop.
But throughput is what FPGAs excel at. I would expect it would be possible to have an FPGA capture system that could perform as well as (or better than) a PC, but with lower power requirements and possibly cost.
That's the idea, anyway. I wish I had the motivation, energy, and focus to actually try it.
