6016 × 3384
6K6016×3384 — 6K — is a 16:9 resolution with 20,358,144 pixels. At this pixel count, you'll typically want OS display scaling above 100% for readable text.
The native resolution of Apple's Pro Display XDR — a 32-inch, Retina-density canvas aimed at HDR video finishing and color-critical work. It offers roughly 40% more pixels than 5K.