3440x1440 resolution
3440 × 1440
UWQHD · 43:18 · 4,953,600 pixels · 4.95 megapixels · Ultrawide
What 3440x1440 is
The common 34-inch ultrawide: 1440p with 880 extra columns. The ratio is 43:18, close to but not exactly 21:9, which is why 21:9 video letterboxes very slightly on it.
The numbers
| Width | 3,440 px |
| Height | 1,440 px |
| Aspect ratio | 43:18 |
| Total pixels | 4,953,600 |
| Megapixels | 4.95 MP |
| Compared with 1080p | 2.39× the pixels |
| Compared with 4K UHD | 0.60× the pixels |
What 3440x1440 costs to move and to store
A frame is width × height × three bytes of colour, before any compression touches it. At 3440 × 1440 that is 14.86 MB per frame, and video is frames per second:
| Frame rate | Uncompressed | An hour of it |
|---|---|---|
| 24 fps | 357 MB/s | 1.28 TB |
| 30 fps | 446 MB/s | 1.6 TB |
| 60 fps | 892 MB/s | 3.21 TB |
| 120 fps | 1.78 GB/s | 6.42 TB |
Nobody ships that. It is the number codecs exist to get away from — a streamed 3440x1440 feed runs at a few tens of megabits, which is a compression ratio of several hundred to one, and it is why a still frame from a stream looks worse than a photograph of the same scene.
How close you have to sit for 3440x1440 to be worth it
The eye resolves about one arcminute of detail. Past a certain distance the pixels merge whatever the panel does, and a higher resolution stops being visible rather than stopping being better. That distance is the pixel pitch divided by the tangent of one arcminute:
| Screen | Pixels merge beyond |
|---|---|
| 13.3 in monitor or laptop | 0.31 m (1 ft) |
| 15.6 in monitor or laptop | 0.37 m (1.2 ft) |
| 24 in monitor or laptop | 0.56 m (1.8 ft) |
| 27 in monitor or laptop | 0.63 m (2.1 ft) |
| 32 in monitor or laptop | 0.75 m (2.5 ft) |
| 43 in television | 1.01 m (3.3 ft) |
| 55 in television | 1.29 m (4.2 ft) |
| 65 in television | 1.52 m (5 ft) |
| 75 in television | 1.76 m (5.8 ft) |
Sitting further back than the figure for your screen, 3440x1440 and the next resolution down look the same. That is the whole argument about 4K televisions in ordinary living rooms: the resolution is real and the seating position usually is not close enough to show it.
Pixel density at common screen sizes
A resolution on its own says nothing about sharpness — the same 3440x1440 panel is dense on a laptop and coarse on a television. Density is the diagonal in pixels divided by the diagonal in inches.
| Diagonal | Pixel density | |
|---|---|---|
| 13.3 in | 280 PPI | High density — the OS will scale the interface |
| 15.6 in | 239 PPI | High density — the OS will scale the interface |
| 24 in | 155 PPI | Sharp |
| 27 in | 138 PPI | Comfortable at native size |
| 32 in | 117 PPI | Comfortable at native size |
Other ultrawide resolutions
| Resolution | Name | Ratio | Megapixels |
|---|---|---|---|
| 2560×1080 | UW-FHD | 64:27 | 2.76 MP |
| 3840×1080 | DFHD | 32:9 | 4.15 MP |
| 3840×1600 | UWQHD+ | 12:5 | 6.14 MP |
| 5120×1440 | DQHD | 32:9 | 7.37 MP |
Closest in total pixels
- 2880×1800 — Retina 15-inch
- 1440×3200 — QHD+ phone
- 2732×2048 — Tablet 12.9-inch
- 3200×1800 — QHD+
- 3840×1080 — DFHD
- 2560×1600 — WQXGA
- 3024×1964 — Laptop 14-inch HiDPI
- 2360×1640 — Tablet 10.9-inch
Frequently asked questions
What is the aspect ratio of 3440x1440?
43:18.
How many pixels is 3440x1440?
4,953,600 pixels, or 4.95 megapixels.
Is 3440x1440 higher resolution than 1080p?
3440x1440 has 2.39× as many pixels as a 1920×1080 frame.
What size screen suits 3440x1440?
Pixel density is what decides that. 280 PPI at 13.3 in, 239 PPI at 15.6 in, 155 PPI at 24 in, 138 PPI at 27 in, 117 PPI at 32 in. Below roughly 110 PPI text starts to look coarse; above about 200 the operating system will usually scale the interface rather than render it at native size.