Monitor & VideoAdapter Reference
01 Physical Video Connectors port shape ≠ capability · always check the version
| Connector | Year | Typical use | Max ceiling* | Status |
|---|---|---|---|---|
| HDMI Type-A 19-pin full-size | 2002 | TVs, consoles, soundbars, AVRs, monitors, projectors | 96 Gbps (2.2) | Current dominant in living room |
| DisplayPort 20-pin full-size | 2006 | PC monitors, GPUs, workstations, professional displays | 80 Gbps (2.1b) | Current dominant on desktop |
| USB-C / DP Alt Mode | 2014 | Laptops, tablets, portable monitors, docks — carries DP signal over USB-C | DP 2.1 (80 Gbps) | Current shares lanes with USB data |
| Thunderbolt 4 / 5 | 2020 / 2023 | Daisy-chained monitors + docks + storage on USB-C connector | DP 2.1 tunnel | Current TB5 = dual 8K @ 60 |
| Mini DisplayPort | 2008 | Older MacBooks, some workstation GPUs, adapters | DP 1.4 | Legacy superseded by USB-C |
| Mini HDMI Type-C | 2006 | DSLRs, mirrorless cameras, tablets | same as Type-A | Current in cameras |
| Micro HDMI Type-D | 2009 | Action cameras, Raspberry Pi 4/5, small devices | same as Type-A | Current embedded only |
| DVI-D / DVI-I | 1999 | Older PC monitors, KVM switches; dual-link = 2560×1600 @ 60 | 9.9 Gbps DL | Legacy still on cheap LCDs |
| VGA D-Sub 15-pin | 1987 | Projectors, conference rooms, ancient signage — analog only | 1920×1200 (degraded) | Obsolete avoid |
| SDI BNC | 1989 | Broadcast, cinema cameras, pro AV; 12G-SDI = 4K60 | 12 Gbps (12G) | Current pro only |
* depends on cable + endpoint version, not the connector shape
02 HDMI Versions required cable type rises with bandwidth
| Version | Year | Bandwidth | Headline mode |
|---|---|---|---|
| 1.4 | 2009 | 10.2 Gbps | 4K @ 30 · 1080p @ 120 |
| 2.0 / 2.0b | 2013 | 18 Gbps | 4K @ 60 · HDR10 |
| 2.1 | 2017 | 48 Gbps | 4K @ 120 · 8K @ 60 · VRR · ALLM |
| 2.1a | 2022 | 48 Gbps | Adds Source-Based Tone Mapping (SBTM) |
| 2.2 new | 2025 | 96 Gbps | 4K @ 480 · 8K @ 240 · 12K @ 120 · 16K @ 60 |
Cable tiers: Standard (up to 1.4) · High-Speed (2.0) · Ultra High Speed (2.1, 48 Gbps) · Ultra96 (2.2, 96 Gbps). Always look for the cert hologram — uncertified “8K” cables routinely fail at sustained bandwidth.
03 DisplayPort Versions UHBR tier = the actual bandwidth · cable label matches
| Version | Year | Link rate | Headline mode |
|---|---|---|---|
| 1.2 | 2010 | HBR2 · 21.6 Gbps | 4K @ 60 |
| 1.4 / 1.4a | 2016 | HBR3 · 32.4 Gbps | 4K @ 120 with DSC · 8K @ 60 with DSC |
| 2.0 / 2.1 | 2019 / 2022 | UHBR10 / 13.5 / 20 | 40 / 54 / 80 Gbps |
| 2.1b new | 2025 | UHBR20 · 80 Gbps | Adds DP80LL active cable (3 m at 80 Gbps) |
Cable labels: DP40 (UHBR10, 40 Gbps) · DP54 (UHBR13.5, 54 Gbps) · DP80 (UHBR20, 80 Gbps passive ~1 m) · DP80LL (UHBR20 active, up to 3 m). A cable that just says “DisplayPort 2.1” without a DP-tier label is the #1 source of buyer regret.
04 Resolution × Refresh Rate · What You Actually Need 10-bit HDR · native = uncompressed · DSC = visually lossless 3:1
| Mode (10-bit) | HDMI 2.0 18 Gbps |
HDMI 2.1 48 Gbps |
HDMI 2.2 96 Gbps |
DP 1.4 32 Gbps |
DP 2.1 UHBR10 40 Gbps |
DP 2.1 UHBR13.5 54 Gbps |
DP 2.1 UHBR20 80 Gbps |
|---|---|---|---|---|---|---|---|
| 1080p @ 144 | |||||||
| 1440p @ 144 | |||||||
| 1440p @ 240 | |||||||
| 4K @ 60 | |||||||
| 4K @ 120 | |||||||
| 4K @ 144 | |||||||
| 4K @ 240 | |||||||
| 4K @ 480 | |||||||
| 5K @ 60 / 5K2K UW @ 120 | |||||||
| 8K @ 60 | |||||||
| 8K @ 120 | |||||||
| 8K @ 240 |
Approximate. Assumes 10-bit colour, 4:4:4 chroma, standard CVT-RB timing. 12-bit / Dolby Vision pushes everything up one tier. Effective bandwidth is ~85% of link rate (8b/10b or 128b/132b encoding).
05 Panel Technology trade-offs that don’t change with the spec sheet
| Type | Strengths | Weaknesses |
|---|---|---|
| IPS | Wide viewing angles, accurate colour, fast at high end | “IPS glow”, weak blacks, mediocre contrast (~1000:1) |
| VA | Best LCD contrast (3000:1+), deep blacks | Slower response, colour shift off-axis, smearing |
| TN | Cheap, very fast response, high refresh | Worst colour + viewing angles · only competitive esports |
| WOLED LG.D | Per-pixel blacks, infinite contrast, fast response | Burn-in risk, lower peak brightness, RGBW subpixels affect text |
| QD-OLED Samsung.D | OLED contrast + wider colour gamut, brighter than WOLED | Burn-in risk, raised blacks in bright rooms (purple/grey) |
| Tandem WOLED | 2× luminance vs WOLED, longer lifespan | Newer panels show grey banding in some greys |
| Mini-LED FALD LCD | Very bright HDR, no burn-in, deep blacks with many zones | Blooming around bright objects, slower response than OLED |
| Micro-LED | OLED contrast + brightness, no burn-in, modular | Astronomical price, only at very large sizes |
06 HDR · VRR · Sync these are the features that actually matter
| Standard | What it does |
|---|---|
| HDR10 | Open, static metadata · baseline for “HDR” labelling |
| HDR10+ | Dynamic per-scene metadata · open · Samsung, Prime Video |
| Dolby Vision | Dynamic per-scene + per-frame · licensed · 12-bit capable |
| HLG | Hybrid Log-Gamma · backwards-compatible HDR for broadcast |
| DisplayHDR VESA | 400 / 500 / 600 / 1000 / 1400 nits tiers · True Black for OLED |
| G-Sync (HW module) | NVIDIA hardware module · widest VRR window · pricey |
| G-Sync Compatible | Adaptive-Sync over DP · works with NVIDIA without module |
| FreeSync / Premium / Pro | AMD’s brand for Adaptive-Sync · Pro adds HDR + low-framerate compensation |
| HDMI VRR | Part of HDMI 2.1 spec · works with PS5, Xbox Series X/S |
| DSC VESA | Display Stream Compression · visually lossless 3:1 · VESA-certified |
07 Quick Picks match task → port + cable spec
Office / productivity
1440p @ 60 IPS
HDMI 2.0 or DP 1.4
HDMI 2.0 or DP 1.4
Any certified cable. Don’t overspend.
4K productivity / Mac
4K @ 60–120
USB-C / TB 4
USB-C / TB 4
Single cable for video + power + data.
Console gaming (PS5 / XSX)
4K @ 120 + VRR
HDMI 2.1 Ultra High Speed
HDMI 2.1 Ultra High Speed
Certified cable, ≤ 3 m for stable signal.
PC gaming · high refresh
4K @ 240 OLED
DP 2.1 UHBR20 (DP80)
DP 2.1 UHBR20 (DP80)
Native uncompressed. DSC works otherwise.
Content creation / colour
5K / 6K · 99% DCI-P3
TB 4/5 or DP 2.1
TB 4/5 or DP 2.1
Factory-calibrated · DisplayHDR 600+.
Home theatre
4K @ 120 · Dolby Vision
HDMI 2.1 (or 2.2)
HDMI 2.1 (or 2.2)
eARC for lossless audio passthrough.
08 Critical Gotchas the small print that ruins a setup
“HDMI 2.1” means almost nothing
Manufacturers can label any product “HDMI 2.1” if it supports just one 2.1 feature. A “2.1” TV may still cap at 40 Gbps and lack VRR. Same caveat now applies to HDMI 2.2. Check the actual supported features per port.
“DisplayPort 2.1” cable is ambiguous
Without a DP40 / DP54 / DP80 label the cable can be any UHBR tier — quietly capping a UHBR20 GPU at 40 Gbps. Always buy by the cert label, not the spec name.
USB-C DP Alt Mode shares lanes
USB-C has 4 high-speed lanes. Display can use 2 (USB 3.x stays at 10 Gbps) or all 4 (USB drops to 2.0 only). Docks negotiate this dynamically — explains why a 4K monitor “kills” SSD speeds.
HDCP 2.3 is required for 4K HDR streaming
Netflix, Disney+, etc. refuse 4K to non-compliant chains. One uncertified KVM, adapter, or capture card = automatic downgrade to 1080p, silently.
OLED burn-in is real but mitigated
Modern panels (2023+) ship pixel shift, logo dimming, panel refresh cycles. Risk skyrockets with static taskbars, news tickers, gaming HUDs at max brightness 8 h/day. Burn-in is excluded from most warranties.
DSC has handshake costs
Visually lossless, but adds 2–5 s black screen on mode switch (Alt-Tab in exclusive fullscreen) and disables some features (DLDSR on NVIDIA, MST daisy-chain). UHBR20 native avoids this.
VRR flicker on OLED
Refresh-rate changes shift gamma on OLED → visible flicker in dark scenes, loading screens, menus. Some panels cap VRR range to mitigate; modern firmwares help but don’t fully solve it.
4:2:0 chroma is a silent quality loss
Some displays/cables fall back to 4:2:0 subsampling at high resolutions to fit the bandwidth budget. Text looks fuzzy and colour fringing appears. Force 4:4:4 in GPU settings; if it fails, your link is too slow.
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