HDMI vs DisplayPort

HDMI (High-Definition Multimedia Interface) and DisplayPort are both digital standards for carrying high-quality video and audio over a single cable. HDMI is the connector you'll find on TVs, projectors, AV receivers, and consumer electronics. DisplayPort is more common on computer monitors, graphics cards, and commercial display hardware. Both do essentially the same job — delivering a crisp, uncompressed digital signal — but they differ in how they handle bandwidth, multi-display setups, and licensing requirements.

At a technical level, both standards encode video and audio data into packets and send them over copper cables. HDMI uses a protocol called TMDS (Transition Minimized Differential Signaling) on older versions, while newer HDMI 2.1 and DisplayPort both use High Bit Rate (HBR) lane-based transmission. DisplayPort uses a packetized micro-protocol similar to PCI Express, which gives it more flexibility for daisy-chaining multiple monitors from a single output port — a feature called Multi-Stream Transport (MST). HDMI does not natively support daisy-chaining; each display typically needs its own cable run back to the source.

In NYC installations — whether you're wiring a SoHo loft, a Midtown conference room, or a co-op apartment in the Upper West Side — the choice between HDMI and DisplayPort often comes down to what's already in the room. Flat-panel TVs, streaming devices, and cable boxes almost universally use HDMI. Commercial monitors, video walls, and workstation setups more commonly rely on DisplayPort. Conduit runs in older Manhattan brownstones or pre-war buildings can make cable swaps difficult, so getting the right interface specified before walls are closed up is critical. Our team coordinates with building supers and DOB-compliant low-voltage permits to ensure the cabling infrastructure supports your chosen standard long-term.

If you're outfitting a boardroom or home theater where the source is a PC or media server driving multiple screens, DisplayPort's daisy-chain capability and higher bandwidth ceiling can reduce the number of cable runs and matrix switch outputs you need. For consumer entertainment setups — living rooms, bedrooms, or hospitality spaces where TVs and streaming devices dominate — HDMI is the practical default because virtually every consumer device supports it. Adapters exist to convert between the two, but for permanent, in-wall installations, using the native interface for each device is always the better call.