ROG Strix XG27AQDMG Monitor
QD-OLED · 27" · 1440p · 240Hz · 0.03ms
MSRP
LG C4 42" OLED
W-OLED · 42" · 4K · 144Hz · 0.1ms · Dolby Vision
MSRP
Our verdict
The ROG Strix XG27AQDMG Monitor takes the performance lead with a 6% higher overall score, driven by its more shader cores, more of memory, and higher TFLOPS of compute power. In gaming benchmarks at 1440p, it delivers roughly 0% more frames per second across demanding titles like Cyberpunk 2077 and Alan Wake 2.
However, the ROG Strix XG27AQDMG Monitor tells a compelling value story. At $650 versus the LG C4 42" OLED's $800 price tag, it costs 23% less while delivering performance that's only 6% behind. Its of memory is still more than enough for 1440p and even 4K gaming in most titles.
Our recommendation: for the majority of gamers targeting 1440p or even 4K with upscaling enabled, the ROG Strix XG27AQDMG Monitor is the smarter purchase. The LG C4 42" OLED only makes sense if you need the absolute maximum performance for native 4K ray tracing, professional 3D rendering, or AI workloads where the extra VRAM and compute power provide a tangible advantage.
Performance winner
ROG Strix XG27AQDMG Monitor
6% faster overall
Best value for money
ROG Strix XG27AQDMG Monitor
11% better value per dollar
ROG Strix XG27AQDMG Monitor best for
Power efficiency
6% faster overall
Connectivity
Display
Image Quality
Performance
Physical
Frequently asked questions
Is the LG C4 42" OLED worth $150 more than the ROG Strix XG27AQDMG Monitor?
It depends on your needs. The LG C4 42" OLED scores 87 overall vs 82 for the ROG Strix XG27AQDMG Monitor. If you need the extra performance for demanding tasks, the premium is justified. For most users gaming at 1440p or below, the ROG Strix XG27AQDMG Monitor offers better value.
Which GPU is better for 1440p gaming, the ROG Strix XG27AQDMG Monitor or LG C4 42" OLED?
The ROG Strix XG27AQDMG Monitor delivers higher frame rates at 1440p, but both GPUs handle 1440p gaming well. The ROG Strix XG27AQDMG Monitor provides more headroom for ray tracing and future titles, while the LG C4 42" OLED still maintains smooth gameplay in current games.
Can the LG C4 42" OLED handle 4K gaming?
The LG C4 42" OLED can handle 4K gaming in less demanding titles and with upscaling technologies like DLSS or FSR. For native 4K at ultra settings in demanding games, the ROG Strix XG27AQDMG Monitor is the better choice with its higher performance ceiling.
Which should I buy, the ROG Strix XG27AQDMG Monitor or LG C4 42" OLED?
Choose the ROG Strix XG27AQDMG Monitor if you want the best value for money and primarily game at 1080p or 1440p. Choose the LG C4 42" OLED if you need maximum performance, play at 4K, or do professional workloads like video editing and 3D rendering.
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