When comparing Cat5e, Cat6, and Cat8 Ethernet cables, Cat8 stands out as the fastest Ethernet cable. While Cat5e supports speeds up to 1 Gbps and Cat6 up to 10 Gbps over shorter distances, Cat8 can deliver blazing-fast speeds up to 40 Gbps with significantly reduced latency and better shielding. It's ideal for data centers or high-performance setups requiring ultra-fast connections. If you're searching for the fastest Ethernet cable to future-proof your network and handle heavy data loads, Cat8 is the clear winner, offering both speed and reliability far beyond earlier categories.