Instruments
The calculators
Three questions worth answering before you buy anything: your real solo odds, whether a model fits your card, and which pool you reach fastest. Feed in your own numbers.
Mining
Solo mining calculator
Your solo chance of finding a Bitcoin block, the running cost and the break-even, on live network data.
AI Rigs
Will it fit? VRAM calculator
Model weights measured on my own 48GB-modded 4090s plus the KV cache for the context you want. See whether it fits, and the longest context that will.
Mining
Stratum ping test
Connect and handshake times to the main Bitcoin pools from the Cloudflare edge nearest you.