# What is the most energy-efficient OLED monitor? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

What is the most energy-efficient OLED monitor?

## Products

### AOC Q27G41ZDF
```yaml
product: aoc-q27g41zdf
brand: AOC
price_gbp: 265.9
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
ports: HDMI 2.0 x 1, DisplayPort 1.4 x 1, Audio Output x 1
resolution: 2560x1440
hdr_support: HDR10
screen_size: 26.5 in
refresh_rate: 240Hz
response_time: 0.03 ms
contrast_ratio: 1.5M:1
```

- **Price:** £265.9 [^1]
- **Summary:** The AOC Q27G41ZDF is a 26.5 in QD-OLED gaming monitor with 2560x1440 resolution and a 240Hz refresh rate for very smooth gameplay. It supports HDR10 and has a fast 0.03 ms response time, with low input lag designed for action games. It includes HDMI 2.0 and DisplayPort 1.4 connectivity for connecting a PC or compatible devices.
- **Ideal For:** For the most energy-efficient OLED monitor, its OLED power profile lists typical power consumption of 63.0 W while still delivering OLED QD-OLED with 240Hz and HDR10, making it an OLED option that's explicitly documented with a relatively low typical draw.
- **Additional Sources:** [^2], [^3], [^1], [^2], [^3]

### AOC Q27G4ZD
```yaml
product: aoc-q27g4zd
brand: AOC
price_gbp: 387.39
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
ports: HDMI 2.1 x2, DisplayPort 1.4 x1, USB-A downstream x4, headphone out 3.5mm
resolution: 2560x1440
hdr_support: VESA DisplayHDR True Black 400
screen_size: 26.5 in
refresh_rate: 280 Hz
response_time: 0.03 ms
contrast_ratio: 1500000:1
```

- **Price:** £387.39 [^4]
- **Summary:** The AOC Q27G4ZD is a 26.5 in QD-OLED QHD gaming monitor with up to 280 Hz refresh rate and a 0.03 ms (GtG) response time for very smooth, fast motion. It supports VESA DisplayHDR True Black 400 and includes a built-in USB hub for added desk connectivity.
- **Ideal For:** It suits the most energy-efficient OLED monitor question because OLED delivers perfect blacks without backlight dimming, and this model's manufacturer-rated response time (0.03 ms GtG) and HDR400 True Black performance come with a specified 78.0 W typical power consumption.
- **Additional Sources:** [^5], [^6], [^4], [^5], [^6]

---
## References & Sources
[^1]: Best Buy, accessed 2026-06-25. https://www.bestbuy.com/product/aoc-27-qd-oled-qhd-240hz-g-sync-compatible-03ms-gaming-monitor-black/JX9GSKP9H6
[^2]: Coolblue, accessed 2026-06-25. https://www.coolblue.nl/en/product/973150/aoc-oled-q27g41zdf.html
[^3]: Newegg, accessed 2026-06-25. https://www.newegg.com/p/3D4-001B-00082
[^4]: AOC Greece, accessed 2026-06-25. https://www.aoc.com/gr/gaming/monitors/q27g4zd
[^5]: AOC Spain, accessed 2026-06-25. https://www.aoc.com/es/gaming/monitors/q27g4zd
[^6]: AOC Singapore, accessed 2026-06-25. https://sgstore.aoc.com/products/aoc-q27g4zd-26-5-qd-oled-qhd-240hz-0-03ms-adaptive-sync-height-adjustment-gaming-monitor