Thanks for pointing this out! Octane benchmark is a rendering industry standard for pricing hardware. It's useful because when someone launches a rendering job, it doesn't just run on one device, say an RTX 3090 or 1660, but rather on a whole host of devices.

Using this benchmark and our pricing of $.0019 per Octane benchmark hour, a 3090 would cost about $1.24/hr. The important thing to remember, and the reason we don't display our pricing like this, is that you aren't buying raw graphics card power from rentaflop or renting a single GPU. Instead, you're paying to have your Blender project rendered by dozens or even hundreds of graphics cards in parallel.