Understanding TV HDR Formats: HDR10 vs Dolby Vision vs HDR10+

High Dynamic Range (HDR) is arguably the single biggest improvement in TV picture quality in the last decade — more impactful than the jump from 1080p to 4K. But the alphabet soup of HDR formats confuses even educated buyers. Let's make sense of it.

What HDR Actually Does

Standard Dynamic Range (SDR) content was designed for old CRT TVs that couldn't get very bright or display deep blacks. HDR removes those limitations. HDR content contains:

• Greater brightness range — highlights can be dazzlingly bright (1,000-4,000+ nits vs. SDR's 100-300 nits)
• Deeper blacks — shadow detail that SDR crushes into flat blackness
• Wider color gamut — HDR uses Rec. 2020 color space, covering far more colors than SDR's Rec. 709
• Higher bit depth — 10-bit or 12-bit vs. SDR's 8-bit, meaning smoother gradients with no banding

The practical result: a sunset scene in HDR shows the bright orange of the sun, the subtle purple gradations in the clouds, and the dark detail in silhouetted foreground — all simultaneously. In SDR, the sun would be a white blob, the clouds would lose nuance, and the foreground would be a black silhouette.

HDR10 — The Baseline

HDR10 is the open, royalty-free HDR standard. Every HDR TV supports it. Every streaming service, Blu-ray disc, and gaming console outputs it.

Technical specs:

• 10-bit color depth (1.07 billion colors)
• Rec. 2020 color gamut
• SMPTE ST 2084 (PQ) transfer function
• Static metadata — a single set of brightness and color instructions for the entire movie

Static metadata is the limitation. The content creator sets one peak brightness value and one color mapping for the whole film. A scene in a dark cave and a scene in bright daylight use the same metadata. The TV does its best to optimize, but it's working with limited information.

Despite this, HDR10 content looks dramatically better than SDR on any decent HDR TV. The Hisense U8N is a great example of how even a mid-priced TV with good peak brightness makes HDR10 content shine.

Dolby Vision — The Premium Standard

Dolby Vision is a proprietary HDR format developed by Dolby Laboratories. It addresses HDR10's biggest limitation with dynamic metadata.

Technical specs:

• Up to 12-bit color depth (68.7 billion colors)
• Rec. 2020 color gamut
• Dynamic metadata — scene-by-scene (even frame-by-frame) brightness and color instructions
• Supports up to 10,000 nits peak brightness (theoretical maximum)
• Requires licensing fee from TV manufacturers

Dynamic metadata is the key advantage. For each scene (or frame), the content creator specifies exactly how bright highlights should be, how dark the shadows should go, and how colors should map. The TV receives precise instructions optimized for each moment of the content.

In practice, Dolby Vision content often looks noticeably better than HDR10 on the same TV. Dark scenes retain more shadow detail, bright scenes have more pop, and tone mapping is smoother. The difference is most visible on mid-brightness TVs that need to make compromises — dynamic metadata helps the TV make smarter compromises.

Most premium TVs support Dolby Vision, including the LG C4 OLED and the Sony Bravia X90L. Netflix, Disney+, Apple TV+, and most 4K Blu-rays offer Dolby Vision versions of their content.

See our TV recommendations →

HDR10+ — Samsung's Response

HDR10+ is Samsung's answer to Dolby Vision. It adds dynamic metadata to the HDR10 base while remaining royalty-free.

Technical specs:

• 10-bit color depth (same as HDR10)
• Rec. 2020 color gamut
• Dynamic metadata — scene-by-scene optimization (similar to Dolby Vision)
• Royalty-free and open standard
• Supports up to 10,000 nits peak brightness (theoretical)

HDR10+ matches Dolby Vision's key advantage (dynamic metadata) while being free for manufacturers to implement. The trade-off is ecosystem adoption: fewer streaming services and fewer titles support HDR10+ compared to Dolby Vision.

Amazon Prime Video is the biggest HDR10+ supporter. Samsung TVs like the Samsung S95D QD-OLED support both HDR10+ and Dolby Vision (Samsung finally added Dolby Vision support starting in 2024 after years of exclusivity to HDR10+).

HLG (Hybrid Log-Gamma) — The Broadcast Standard

HLG is a format designed for live TV broadcasts. Unlike HDR10 and Dolby Vision, HLG is backwards-compatible with SDR TVs — an HLG broadcast looks like normal SDR on an old TV and HDR on a compatible TV. This makes it practical for broadcasters who can't transmit two separate signals.

Most modern TVs support HLG, and it's used for BBC iPlayer, some YouTube content, and live sports in certain markets. You don't need to specifically shop for HLG support — virtually every HDR TV includes it.

Which Format Matters Most?

HDR10 is non-negotiable. Every HDR TV supports it, and it's the universal format. You'll always have HDR10 content to watch.

Dolby Vision is highly recommended. The content library is enormous (Netflix, Disney+, Apple TV+, most 4K Blu-rays), and the quality improvement over HDR10 is real. If you're spending $800+ on a TV, Dolby Vision should be on your checklist.

HDR10+ is a nice bonus. If your TV supports it (most 2024+ TVs from Samsung, Hisense, and TCL do), great. But don't choose a TV solely for HDR10+ support.

The Brightness Factor

Here's something marketing brochures obscure: HDR format support means nothing without adequate brightness. A TV that supports Dolby Vision but only hits 400 nits peak brightness cannot deliver a meaningful HDR experience. HDR content is mastered for TVs that can hit 1,000+ nits.

Look for TVs with at least 600 nits peak brightness for a baseline HDR experience, 1,000+ nits for good HDR, and 1,500+ nits for excellent HDR. OLED TVs typically peak at 800-1,500 nits, while the best mini-LED LCDs can exceed 2,000 nits.

The TCL QM8 is a mini-LED TV that hits over 2,000 nits peak brightness at a competitive price, making it one of the best HDR performers per dollar.

HDR in Gaming

The PS5 and Xbox Series X both support HDR10 in gaming. Dolby Vision gaming is exclusive to Xbox Series X/S. PC gaming supports HDR10 natively in Windows, with some games also supporting Dolby Vision via the Dolby Access app.

Auto HDR (available on Xbox and Windows) applies HDR-like processing to older SDR games, and it works surprisingly well on many titles. For the best gaming HDR experience, you need a TV with low input lag that doesn't sacrifice HDR processing in game mode.

Read our gaming TV guide →

Bottom Line

Prioritize buying a TV with good peak brightness and support for HDR10 and Dolby Vision. The format support gets your foot in the door, but the hardware determines how good HDR actually looks. A cheap TV with Dolby Vision support but 400 nits of brightness will look worse in HDR than a bright TV playing HDR10 content.

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