Q27G3XMN Monitor
W-OLED · 27" · 1440p · 240Hz · 0.03ms
MSRP
LG C4 42" OLED
W-OLED · 42" · 4K · 144Hz · 0.1ms · Dolby Vision
MSRP
Our verdict
The Q27G3XMN Monitor takes the performance lead with a 4% 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 Q27G3XMN Monitor tells a compelling value story. At $550 versus the LG C4 42" OLED's $800 price tag, it costs 45% less while delivering performance that's only 4% 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 Q27G3XMN 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
Q27G3XMN Monitor
4% faster overall
Best value for money
Q27G3XMN Monitor
16% better value per dollar
Q27G3XMN Monitor best for
Power efficiency
4% faster overall
Connectivity
Display
Image Quality
Performance
Physical
Frequently asked questions
Is the LG C4 42" OLED worth $250 more than the Q27G3XMN Monitor?
It depends on your needs. The LG C4 42" OLED scores 85 overall vs 82 for the Q27G3XMN Monitor. If you need the extra performance for demanding tasks, the premium is justified. For most users gaming at 1440p or below, the Q27G3XMN Monitor offers better value.
Which GPU is better for 1440p gaming, the Q27G3XMN Monitor or LG C4 42" OLED?
The Q27G3XMN Monitor delivers higher frame rates at 1440p, but both GPUs handle 1440p gaming well. The Q27G3XMN 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 Q27G3XMN Monitor is the better choice with its higher performance ceiling.
Which should I buy, the Q27G3XMN Monitor or LG C4 42" OLED?
Choose the Q27G3XMN 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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