Your GPU Is Nerfed for Local AI (NVIDIA's Hidden Limit)

Your RTX 3090 or RTX 4090 runs one kind of AI math at half speed, and NVIDIA prints it in its own whitepaper. The free gpu-unlock tool removes the limit, but whether your local LLM gets faster depends on one thing: which lane your software runs in. The RTX 4090's box says 1,321 AI TOPS. The 16-bit math with a 32-bit running total that AI software actually uses (BF16 and FP16 with FP32 accumulate) runs at 165. Three halvings sit between those numbers: sparsity, 16-bit inputs, and the GeForce lock. Only the last one is a limit NVIDIA chose. The RTX 3090 does 71 teraflops in that mode, while the