Samsung Neo QLED vs LG OLED: Which 65-Inch TV Should You Buy in 2025?

Shopping for a premium 65-inch TV can feel overwhelming, especially when you're comparing two fundamentally different technologies that both promise amazing picture quality. The Samsung 65" QN70F Neo QLED and LG B5 Series OLED represent the best of both worlds in 2025's TV market—but they achieve excellence through completely different approaches.

At the time of writing, both TVs are priced competitively in the premium segment, making your choice less about budget and more about which technology better fits your viewing environment and preferences. Let me walk you through everything you need to know to make the right decision for your home.

Understanding the Technology Battle: Mini LED vs OLED

Before diving into specific models, it's crucial to understand what makes these technologies tick. The Samsung QN70F uses Neo QLED technology, which is Samsung's marketing term for their quantum dot displays with mini LED backlighting. Think of it as thousands of tiny LED lights behind the screen that can dim independently to create contrast—it's like having precise control over a flashlight shining through a stained glass window.

The LG B5 OLED, on the other hand, uses OLED (Organic Light-Emitting Diode) technology where each individual pixel creates its own light. Imagine each pixel as a tiny lightbulb that can turn completely on, completely off, or anywhere in between. This fundamental difference creates dramatically different viewing experiences.

Both technologies emerged from manufacturers trying to solve the same problem: how do you get deep blacks and bright whites in the same image? Samsung's approach uses sophisticated backlighting, while LG's approach eliminates the backlight entirely.

Samsung QN70F Neo QLED: The Bright Room Champion

Released in 2025, the Samsung QN70F represents Samsung's entry point into their Neo QLED lineup, but don't let "entry-level" fool you. This TV packs Samsung's new NQ4 AI Gen2 processor, which is significantly more powerful than previous generations and enables some genuinely useful AI features.

Display Technology Deep Dive

The QN70F uses Quantum Matrix Technology Slim with mini LEDs positioned along the bottom edge of the display. While this isn't full-array local dimming (where LEDs are spread across the entire back of the screen), Samsung has made significant improvements in 2025. The mini LEDs are much smaller than traditional LEDs, allowing for more precise lighting control and better contrast than previous edge-lit designs.

The Quantum Dot layer acts like a color filter that converts the blue LED backlight into incredibly pure and vibrant colors. When I first saw quantum dot technology in action several years ago, the color improvement was immediately noticeable—reds looked redder, greens more vivid, without that oversaturated "sports bar TV" look that some displays have.

Gaming Performance

For gamers, the Samsung QN70F offers solid performance with support for up to 144Hz refresh rates through its Motion Xcelerator technology, though the native panel refresh rate is 100Hz. All four HDMI ports support HDMI 2.1, meaning you can connect multiple next-gen gaming consoles without compromising on features.

The TV supports AMD FreeSync technology, which synchronizes the display's refresh rate with your gaming device's frame rate to eliminate screen tearing—those horizontal lines that appear when the display and graphics card fall out of sync. It's particularly beneficial for PC gaming and newer consoles.

Smart Features and AI

Samsung's Vision AI features are genuinely impressive in 2025. The "click-to-search" functionality lets you pause any content and get information about actors, products, or locations on screen. The live translation feature provides real-time subtitles in your preferred language for foreign content—incredibly useful for international programming.

The Tizen operating system feels responsive and intuitive, with support for all major streaming platforms. Samsung's integration with their ecosystem of soundbars and other devices through Q-Symphony creates a more cohesive home entertainment setup.

LG B5 OLED: The Picture Quality Perfectionist

The LG B5 OLED launched in 2025 as LG's most accessible OLED option, but it still delivers the fundamental OLED advantages that make this technology so compelling. LG has been refining OLED technology for over a decade, and the improvements in 2025 are subtle but meaningful.

OLED's Fundamental Advantage

The magic of OLED lies in pixel-level control. Each of the 8.3 million pixels in this 4K display can turn completely off, creating true blacks that no backlit display can match. When you're watching a scene with stars against a night sky, those black areas are actually black—not dark gray like you get with LED backlighting.

This creates an infinite contrast ratio, meaning the difference between the darkest and brightest parts of the image is theoretically unlimited. In practical terms, this translates to incredible depth and dimensionality in images, especially in dark room viewing.

The α8 AI Processor Gen2

LG's α8 AI Processor Gen2 is 1.4 times faster than the previous generation and brings significant improvements to content analysis and optimization. The processor automatically detects what type of content you're watching—sports, movies, animation—and adjusts the picture settings accordingly.

The AI upscaling is particularly impressive with older content. I've noticed dramatic improvements when watching older TV shows or lower-resolution streaming content, with the processor adding detail and sharpness that makes 1080p content look surprisingly close to native 4K.

Gaming Excellence

The LG B5 OLED truly shines for gaming with a response time under 0.1 milliseconds—essentially instantaneous. For competitive gaming, this can mean the difference between landing a shot or missing it. The TV supports both NVIDIA G-Sync and AMD FreeSync Premium, making it compatible with a wider range of gaming hardware.

The Game Dashboard provides quick access to gaming-specific settings without leaving your game, and the Game Optimizer automatically configures display settings based on the type of game you're playing.

Performance Showdown: Where Each TV Excels

Brightness and HDR Performance

This is where the fundamental technology differences become most apparent. The Samsung QN70F can achieve significantly higher peak brightness levels thanks to its mini LED backlight. In practical terms, this means HDR content looks more impactful in bright rooms, and the TV remains visible and vibrant even with windows or lamps creating ambient light.

The LG B5 OLED has more limited peak brightness, which can make HDR content appear less dramatic in bright environments. However, the perfect black levels mean that the contrast between dark and bright elements is actually superior to the Samsung in controlled lighting conditions.

For HDR gaming, the Samsung supports HDR10+ Adaptive, which dynamically adjusts HDR settings based on your gaming environment. The LG supports Dolby Vision for gaming, which many consider superior for movie content but has less gaming-specific optimization.

Color Accuracy and Reproduction

Both TVs excel in color performance but in different ways. The Samsung QN70F with its quantum dot technology produces incredibly vibrant, saturated colors that pop off the screen. This makes it excellent for sports, animation, and content where you want colors to really grab your attention.

The LG B5 OLED tends toward more natural, film-accurate colors out of the box. Professional calibrators often prefer OLED displays because they more closely match the color standards used in movie production. If you're a film enthusiast who wants to see movies as the director intended, OLED typically gets you closer to that goal without professional calibration.

Viewing Angles and Reflections

The LG B5 OLED has perfect viewing angles—the picture looks identical whether you're sitting directly in front or off to the side. This makes it ideal for wide seating arrangements or open-concept living spaces.

The Samsung QN70F includes Wide Viewing Angle technology that significantly improves off-axis viewing compared to traditional LCD displays, though it still can't match OLED's perfection. However, Samsung's approach to reflection handling is often superior, with better anti-glare coatings that can handle ambient light more gracefully.

Smart TV Platforms: webOS vs Tizen

Both platforms have matured significantly, but they offer different approaches to smart TV functionality. LG's webOS 25 on the B5 OLED introduces Quick Cards that let you organize apps into categories and provides instant access to over 300 free channels through LG Channels. The new AI button on the remote provides direct access to voice commands and AI features.

Samsung's Tizen platform on the QN70F integrates more deeply with Samsung's ecosystem and includes more advanced AI features like real-time translation and content identification. If you already use Samsung smartphones or other devices, the integration benefits are substantial.

Audio Considerations

Neither TV will blow you away with built-in audio, but both offer good integration with external sound systems. The Samsung QN70F includes Object Tracking Sound Lite and Q-Symphony support, which means compatible Samsung soundbars can work in harmony with the TV's built-in speakers for a more immersive experience.

The LG B5 OLED supports Dolby Atmos decoding and works well with LG's soundbar lineup, though the integration isn't quite as seamless as Samsung's approach.

For home theater enthusiasts, I'd recommend planning for a separate sound system regardless of which TV you choose. Both displays deserve audio that matches their video capabilities.

The Home Theater Perspective

If you're building a dedicated home theater, the choice becomes more clear-cut. The LG B5 OLED is the better choice for controlled lighting environments. The perfect blacks create a more cinematic experience, especially for movie content with dark scenes. The superior viewing angles also work better for theater-style seating arrangements.

However, if your "home theater" is really a multi-purpose family room with windows and ambient lighting, the Samsung QN70F might serve you better. Its higher brightness capability means you won't need to make your room as dark to get good picture quality.

Making the Right Choice for Your Home

The decision between these TVs ultimately comes down to your viewing environment and priorities. Here's my recommendation framework:

Choose the Samsung QN70F Neo QLED if:

• Your TV room has significant natural light from windows
• You watch TV during daytime hours regularly
• You prefer a more vivid, "pop off the screen" picture style
• You want the slimmest possible wall-mount installation
• You're building a Samsung ecosystem with soundbars and other devices
• HDR10+ support matters for your gaming setup

Choose the LG B5 OLED if:

• You can control lighting in your viewing room
• Movie watching is your primary use case
• You're a serious gamer who values the fastest possible response times
• Perfect blacks and infinite contrast are priorities for you
• You prefer more natural, film-accurate colors
• You have a wide seating arrangement that benefits from perfect viewing angles

Value Considerations and Final Thoughts

At the time of writing, both TVs offer compelling value propositions in the premium TV segment. The Samsung QN70F provides more versatility across different viewing conditions, while the LG B5 OLED offers superior picture quality in optimal conditions.

For most buyers, I lean slightly toward the Samsung QN70F because of its versatility. Unless you can guarantee a controlled lighting environment, the Samsung's higher brightness and better reflection handling make it more practical for everyday use. The slim design is also a significant advantage for wall mounting.

However, if you're a movie enthusiast or serious gamer who can optimize your viewing environment, the LG B5 OLED delivers a picture quality experience that's hard to match. The perfect blacks and infinite contrast create a more immersive viewing experience that, once you've experienced it, makes other displays look washed out in comparison.

Both TVs represent significant technological achievements and will provide years of excellent viewing. The "wrong" choice doesn't exist here—only the choice that's less optimal for your specific situation. Consider your room, your viewing habits, and your priorities, and either TV will serve you well in 2025 and beyond.

Samsung 65" QN70F Neo QLED 4K Vision AI Smart TV 2025 Deals and Prices

LG B5 Series OLED 65" 4K Smart TV 2025 Deals and Prices