DisplayPort 1.2 vs. VGA
Comparing 2 standards across 7 specifications. 7 key differences identified.
DisplayPort 1.2, released January 7, 2010, doubled maximum bandwidth to 21.6 Gbps via a new High Bit Rate 2 (HBR2) mode, enabling 4K at 60Hz for the first time. Its headline feature, Multi-Stream Transport (MST), lets multiple monitors daisy-chain from a single DisplayPort output.
VGA (Video Graphics Array) uses a 15-pin DE-15 D-subminiature connector, introduced by IBM in 1987 alongside the original PS/2 computer. As a purely analog standard with no enforced resolution ceiling, its practical maximum depends on cable and DAC quality, though 2048x1536 @ 85Hz is commonly cited as a practical limit.
Specification Comparison Table
7 Parameters| Parameter / Spec | ||
|---|---|---|
|
Release Date
|
January 7, 2010 | — |
|
Max Bandwidth, HBR2 4 lanes (raw / effective)
|
21.6 / 17.28 Gbps | — |
|
Max Resolution @ Refresh Rate
|
3840x2160 (4K) @ 60Hz, 10-bit color | — |
|
AUX Channel Bandwidth
|
up to 720 (up from 1.0's 1 Mbps) Mbps | — |
|
Connector
|
— | DE-15 (15-pin D-subminiature, 3 rows of 5) |
|
Introduced
|
— | 1987 (IBM) |
|
Commonly Cited Practical Max Resolution
|
— | 2048x1536 @ 85Hz |