In the battle of premium 2023 televisions, the LG OLED77C3PUA emerges as the clear winner. With its perfect blacks, infinite contrast, and superior gaming features including VRR, the LG OLED delivers a cinematic and responsive experience that the Samsung QN75Q80TAFXZA simply cannot match despite its more attractive price tag.

Quick Specs Comparison

Picture Quality: The OLED Revolution

The most striking difference between these two televisions lies in their fundamental display technology. The Samsung QN75Q80TAFXZA utilizes a VA LCD panel with full-array local dimming, which performs admirably for an LED-backlit set. Its contrast is strong for the category, and the 75-inch screen delivers vibrant colors with decent black levels. However, even the best local dimming cannot eliminate all blooming and haloing around bright objects on dark backgrounds.

In comparison, the LG OLED77C3PUA uses self-emissive OLED technology where each pixel generates its own light. This results in truly infinite contrast and perfect blacks that LCD technology cannot replicate. When watching movies like "The Batman" or "Gravity," the LG creates an inky darkness that makes highlights pop with incredible intensity. The 77-inch size further immerses viewers in the content. While both support HDR10, HDR10+, and Dolby Vision, the LG's per-pixel precision makes HDR content look dramatically more realistic and three-dimensional. This is not a minor upgrade; it's a transformative difference that justifies the premium for serious cinephiles.

Gaming Performance: Features That Matter

Gamers will find the LG OLED77C3PUA significantly more compelling. Both TVs offer 120Hz refresh rates and low input lag, making them responsive for fast-paced titles. However, the LG includes full Variable Refresh Rate (VRR) support across its four HDMI 2.1 ports, eliminating screen tearing and stuttering when paired with PS5, Xbox Series X, or high-end PC graphics cards. The Samsung QN75Q80TAFXZA only offers two HDMI 2.1 ports and notably lacks VRR support, a surprising omission that limits its appeal for next-gen console owners.

The LG also features the Game Optimizer dashboard, allowing quick adjustments to picture settings for different genres. Its OLED panel delivers instantaneous pixel response times, resulting in sharper motion than even the best LCDs. Samsung counters with strong motion processing and a dedicated Game Mode, but without VRR, competitive gamers may notice occasional tearing. If you're building a serious gaming setup, the LG C3 is the undisputed champion here.

Design, Smart Features, and Everyday Use

Both televisions boast slim profiles and elegant designs suitable for modern living rooms. The LG's ultra-thin OLED panel can be mounted nearly flush against the wall, creating a gallery-like appearance. Samsung's Q80T is slightly thicker due to its backlight system but includes a more robust stand with cable management.

Smart platform preferences are subjective. Samsung's Tizen OS is snappy with excellent app support and the intuitive SmartThings ecosystem for smart home integration. LG's webOS 23 has seen major improvements, offering a clean interface, impressive voice control through ThinQ AI, and exclusive features like sports alerts. Both support Apple AirPlay 2 and Bluetooth connectivity. In daily use, the LG's superior contrast makes everything from streaming Netflix to cable TV look more premium, though the Samsung holds up remarkably well in brighter rooms where its higher sustained brightness can combat ambient light more effectively.

Who Should Buy Which?

Choose the Samsung QN75Q80TAFXZA if:

• You want maximum value and are working with a $2,700 budget
• You need four HDMI ports but don't require VRR for gaming
• Your room has significant ambient light where LCD brightness helps
• You prefer the Tizen interface and Samsung's ecosystem
• 75 inches is the ideal size for your space

Choose the LG OLED77C3PUA if:

• Picture quality is your top priority and you want perfect blacks
• You're a gamer who needs full HDMI 2.1 features including VRR
• You want the larger 77-inch immersive screen
• You're willing to invest in premium performance
• You primarily watch movies and HDR content in controlled lighting

Final Verdict

The LG OLED77C3PUA is the superior television and our recommended pick for most buyers who can stretch their budget. Its infinite contrast, perfect pixel-level lighting control, and comprehensive gaming features deliver an experience that feels years ahead of traditional LCD models. The larger 77-inch panel further enhances immersion without significantly increasing the footprint compared to the 75-inch Samsung.

That said, the Samsung QN75Q80TAFXZA remains an excellent choice for value-conscious consumers. At nearly $1,600 less, it delivers strong performance that will satisfy the majority of users, especially those in brighter environments or those who don't need advanced gaming features. The gap between these sets is not as massive as the price difference suggests for casual viewing.

Ultimately, this comparison highlights a classic premium TV dilemma: pay more for cutting-edge OLED technology that delivers reference-quality images, or save significantly with a highly capable LED TV that still impresses. For uncompromising picture quality and future-proof gaming features, the LG OLED77C3PUA stands tall as the winner. Its 8.4/10 score reflects near-reference performance, while the capable Samsung earns a respectable 7.2/10 for delivering strong value in a competitive market.

Both sets support the latest standards and will provide years of enjoyment. If your budget allows the splurge, choose the LG without hesitation. If fiscal responsibility is key, the Samsung Q80T will not disappoint. The decision ultimately comes down to how much you value that perfect OLED black level versus keeping more money in your pocket.