I've tested plenty of the best 4K 120Hz TV options through the years, and I'd say they're a must for gaming. Playing at faster refresh rates can help you improve your skills in shooters and speedy ...

But for the rest of us, I'm still hard-pressed to see why someone would want a 500 Hz OLED display that only does 1440p. If I had the cash to pay through the nose for a new monitor I'd go for a ...

For example, a sound measured at 4,000 Hz vibrates 4,000 times per second. The frequency, which is the pitch of a sound, is different from the intensity, which is how loud a sound feels.