# Bandwidth Calculator

subdirectory_arrow_left Video Bandwidth Calculator (CTA Test 8)

| Video Format |

✕ @ Hz
Warning: Non-Standard Refresh Rate
The CTA-861 standard only defines timing parameters for this resolution at the following refresh rates:

- 50.000 Hz (VIC: 24)
- 59.940 Hz (VIC: 25)
- 60.000 Hz (VIC: 26)

This calculator uses the timing parameters from 60 Hz for non-standard refresh rates.

› | Advanced Settings |

Color Depth: 8 bpc (24 bit/px) 10 bpc (30 bit/px) 12 bpc (36 bit/px) 16 bpc (48 bit/px) Custom: bpc bit/px | Pixel Format: RGB YCBCR 4:4:4 YCBCR 4:2:2 YCBCR 4:2:0 | Compression: Uncompressed DSC (2.0×) DSC (2.5×) DSC (3.0×) | Scan Type: Progressive Interlaced | Margins: No Yes %

Timing Format: VIC: 218 |  | Front Porch: | Sync Width: | Back Porch: | Total:
Hblank | px | px | px | 1234 px
Vblank | px | px | px | 0 px
(Odd) Vblank | px | px | px | 0 px

| Detailed Results |

Video Format: 4096 × 2560 (8:5 ratio), progressive scan 120 Hz vertical refresh rate (frame rate) 10 bpc (30 bit/px) color depth (1,073,741,824 colors) YCBCR 4:4:4 pixel format Uncompressed CTA-861 timing (VIC: 63)

Data Rate: | 37.75 | Gbit/s
Blanking Overhead: | 10.3 | %
Bandwidth:
8b/10b Encoding: | 45.30 | Gbit/s
16b/18b Encoding: | 51.20 | Gbit/s
Character Rate ("Pixel Clock"): | 1.26 | GHz
Pixel Rate (Actual): | 1.26 | Gpx/s
Pixel Rate (Incl. Blank): | 1.58 | Gpx/s
Vertical Refresh Frequency (Actual): | 120.001 | Hz
Deviation: | 0.001 | %
Period: | 8.333 | ms
Horizontal Refresh Frequency: | 161.25 | kHz
Period: | 15.2 | µs

› | Calculations |

$$\texttt{Pixels per frame:}$$
$$\texttt{4,096} \times \texttt{2,560 lines} = \texttt{10,485,760 px (10.5 Mpx)}$$
$$\texttt{Pixels per second:}$$
$$10\,485\,760\;\mathtt{px/frame} \times 120\;\mathtt{frame/s} = 1\,258\,291\,200\;\mathtt{px/s}\;(1.26\;\mathtt{Gpx/s})$$
$$\texttt{Bits per second:}$$
$$1\,258\,291\,200\;\mathtt{px/s} \times 30\;\mathtt{bit/px} = 37\,748\,736\,000\;\mathtt{bit/s}\;(37.7\;\mathtt{Gbit/s})$$

$$\texttt{Timing Formula:}$$
$$\texttt{Constants:}$$ $$\texttt{H = 4,096 px}$$ $$\texttt{V = 2,560 px}$$ $$\texttt{F = 120 Hz}$$
$$\texttt{Formula:}$$
$$\texttt{V}_{\texttt{blank}} \texttt{ = } {{\texttt{V × V}_{\texttt{min}}} \over {{\texttt{1} \over \texttt{F}} - \texttt{V}_{\texttt{min}}}}$$
The timing parameters used for these calculations are defined by the CTA-861 standard. The definitions for this format are listed under Video Identification Code (VIC) #98, first defined in CTA-861-F (formerly CEA-861-F).

› | Interface Support |