OPNsense Forum

English Forums => Hardware and Performance => Topic started by: VRBitman on May 01, 2026, 05:13:27 PM

Title: Achieving sustained 25Gbps throughput
Post by: VRBitman on May 01, 2026, 05:13:27 PM
Hi all,

looking to put together a mini PC that can sustain a 25Gbps throughput.
My CPU is an i9, I'm fairly confident that has adequate horsepower.

What about RAM?

The official hardware sizing guide of OPNsense states that to handle a throughput of over 750Mbps the "recommended spec" is needed.
And the recommended spec indicates 8GB of RAM.

But is that enough for 25Gbps or will it handle just a little over 750Mbps?

I don't expect to have many sessions going on at any given moment.
I live alone and I generally use only one device to surf the Internet.