BFV Adds and Multiplies. CKKS Infers. TFHE Decides. Fully homomorphic encryption has three engines, each optimized for a different class of computation. TFHE handles the operations that BFV and CKKS cannot: comparisons, thresholds, equality checks, and Boolean decisions — all on encrypted data. Measured Performance (Graviton4, 96 Channels) Operation TPS Per-Channel 8-bit Greater-Than 768 125ms 16-bit Greater-Than 372 258ms 32-bit Greater-Than 182 526ms 64-bit Greater-Than 91 1,058ms 16-bit Equality 769 125ms No GPU. No accelerator. Commodity ARM CPUs. Use Cases Fraud threshold : Is the encrypted transaction amount above the reporting limit? FraudShield Credit decision : Is the encrypted credit score in the approval range? Banking Access control : Does the encrypted access level meet the required tier? H33-Upstream Session expiry : Has the encrypted timestamp passed the timeout? Identity Automatic Routing via FHE-IQ You do not choose between BFV, CKKS, and TFHE.…