# GateGPT: 56k tokens per second Transformer (KV cache) on FPGA at 80 MHz > Source: > Published: 2026-06-16 16:12:26+00:00 56,000+ tokens/sec at just 80 MHz. 🤯 I burned a full Transformer with KV cache into a custom chip. Designed gate by gate as a 100% digital integrated circuit. Prototyped on a FPGA. (No GPU. No CPU) Just pure digital silicon running [@karpathy](https://x.com/karpathy)microGPT, spelling out names on a GPT 👇00:00