Poco X8 Pro Max Likely Uses 12-Bit Temporal Dithering Despite 3,840 Hz PWM
Updated
Updated · Notebookcheck.net · Jun 9
Poco X8 Pro Max Likely Uses 12-Bit Temporal Dithering Despite 3,840 Hz PWM
1 articles · Updated · Notebookcheck.net · Jun 9
Summary
Testing found the Poco X8 Pro Max highly likely relies on Frame Rate Control—temporal dithering—to help produce its advertised 12-bit color output rather than rendering every gradation natively.
Temporal dithering works by rapidly alternating nearby color values so the eye perceives an intermediate shade, a method that can improve gradients without a fully native 12-bit panel.
3,840 Hz PWM dimming may reduce brightness-flicker concerns, but it does not exclude added temporal color modulation, which some users suspect contributes to burning eyes, headaches, dizziness or fast visual fatigue.
Manufacturers rarely disclose whether they use this technique, and the report says the subpixel flicker was clearer in original footage than in a compressed YouTube upload.
No scientific consensus links temporal dithering to eye strain, but the report says rising anecdotal complaints make the issue relevant for display-sensitive buyers.