Hardware Spec Index

Mirenta MN-6421 Ti 27" 4K 240Hz QD-OLED Monitor

Monitors · Mirenta · SKU MN6421-TI · Released 2024 · Updated 2026-10-20

Key facts

Benchmark index3,515 (Monitors scale)
Category rank#34,693
Street price$1,279
Power92 W
Performance per dollar2.75
Released2024

Specifications

BrandMirenta
ModelMirenta MN-6421 Ti
Screen size27-inch
Resolution3840 × 2160 (4K)
Pixel density163 PPI
PanelQD-OLED
Refresh rate240 Hz
Response time0.03 ms (GtG)
HDRVESA DisplayHDR True Black 400
Peak brightness1300 nits
Color gamut99% DCI-P3
Variable refreshVESA Adaptive-Sync, FreeSync Premium, G-SYNC Compatible
Inputs2× HDMI 2.1, 1× DisplayPort 2.1 (UHBR20), USB-C (DP Alt, 90 W)

Related guides

OLED Monitors ExplainedHigh Refresh Rate MonitorsChoosing a GPU for 4K GamingChoosing a GPU for 1440p Gaming

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Cite this page: Hardware Spec Index, “Mirenta MN-6421 Ti 27" 4K 240Hz QD-OLED Monitor”, https://vextor7.com/item/20070430 (accessed 2026-10-20).