The fastest internal SSD in a Mac now can write at 3.3GB/sec, so it would be able to keep up with 25Gbps connections, barely. Average SSD write speeds are usua

The fastest internal SSD in a Mac now can write at 3.3GB/sec, so it would be able to keep up with 25Gbps connections, barely. Average SSD write speeds are usually around 1GB/sec these days, but most folks could build a RAID of several SSDs and be able to keep up with such a connection, as well. I would also assume that most folks who would bother to install 25Gbps, or anything close, probably have a lot of devices in their homes to take advantage of it at once. Personally, I find it very hard to saturate the 1Gbps link I have. Most servers won't push more than around 200Mbps out to you, and I'm basically never doing 5 tasks at once that are that bandwidth-intensive. But it's nice to have some overhead, just for fun.