LG 27GR93U-B
3840 x 2160Up to 144HzIPS (Nano IPS)DSC decoder: YES
Maximum verified mode per connector
This is where HDMI and DisplayPort usually differ. Both figures are at native resolution.
| HDMI | 3840x2160 @ 144Hz (no DSC) |
|---|---|
| DisplayPort | 3840x2160 @ 144Hz (DSC required) |
Inputs
| Connector | Version label | Count | Documented input ceiling |
|---|---|---|---|
| HDMI | HDMI 2.1 | 2 | not separately published |
| DisplayPort | DisplayPort 1.4 | 1 | ~25.92 Gbps payload |
Officially documented timing modes
| Connector | Mode | DSC | Source grade |
|---|---|---|---|
| DisplayPort | 3840x2160 @ 120Hz | NO | C |
| DisplayPort | 3840x2160 @ 144Hz | YES | C |
| HDMI | 3840x2160 @ 60Hz | NO | C |
| HDMI | 3840x2160 @ 120Hz | NO | C |
| HDMI | 2560x1440 @ 144Hz | NO | C |
| HDMI | 3840x2160 @ 144Hz | NO | C |
HDR, VRR, colour depth
| HDR | YES - VESA DisplayHDR 400, HDR10 (confirmed) |
|---|---|
| VRR | YES - NVIDIA G-SYNC Compatible, AMD FreeSync Premium (48-144Hz + LFC) (confirmed) |
| Max colour depth | 10-bit |
Graphics card requirement
LG owner’s manual troubleshooting: 4K 144Hz over HDMI needs an NVIDIA RTX 3000 series / AMD RX 6000 series GPU or newer.
Notes
PHASE 1.85 correction: HDMI and DP are SYMMETRIC at 4K/144Hz. HDMI reaches it with no DSC; DP needs DSC. The PHASE 1.8 "HDMI capped at 120Hz" reading was wrong (Video Timing table vs PC Factory Support Mode table).
Last verified: 2026-09-02 (seed data).
Check a graphics card against this monitor
NVIDIA GeForce RTX 5070Run a checkNVIDIA GeForce RTX 5080Run a checkNVIDIA GeForce RTX 5090Run a checkAMD Radeon RX 9060 XTRun a checkAMD Radeon RX 9070 XTRun a checkNVIDIA GeForce RTX 4070 SUPERRun a checkNVIDIA GeForce RTX 4070 Ti SUPERRun a checkNVIDIA GeForce RTX 4060Run a checkNVIDIA GeForce RTX 4060 TiRun a checkAMD Radeon RX 7600Run a checkAMD Radeon RX 7800 XTRun a checkNVIDIA GeForce RTX 4090Run a checkAMD Radeon RX 7900 XTXRun a checkAMD Radeon RX 6600Run a checkNVIDIA GeForce GTX 1080 TiRun a check