Cherry MX Brown and Razer Orange Gen 3 are tactile switches with a small bump to overcome during actuation. While the Cherry switches are suitable for typing and gaming, the Razer switches are designed specifically for gaming. They're considerably smoother feeling from the factory with slightly better latency performance. They're also a bit more lightweight, and while they have the same amount of pre-travel distance, the tactile bump happens much sooner during the Razer's keypress.
Cherry MX Red are linear switches that actuate smoothly throughout their entire keypress. On the other hand, the Razer Orange Gen 3 switches have a small tactile bump to overcome during actuation. They also have somewhat better latency performance. While the Razer switches have only a slightly shorter pre-travel, the tactile bump is also very early in the keypress, which is unusual for a tactile switch.