Shall include technology to authenticate and maintain continuous HDCP encryption and key exchange between connected devices Shall switch embedded multi-channel HDMI and DisplayPort audio, along with video, to the Preview and Program HDMI outputs. Shall provide internal video test patterns and pink noise generator for calibration and setup of display devices If you have a 4K Ultra HD TV and 4K source components, the switcher must also be 4K compatible. If you need to pass HDR-encoded or 3D video signals, your HDMI switcher must have those capabilities. More recently, HDMI 2.0 introduced “Premium High Speed” cables certified to meet the 18 Gbps bit rate, and HDMI 2.1 has created a fourth class of cable, “Ultra High Speed” HDMI that can handle up to 48 Gbps. HDMI also provides for routing Ethernet signals over the HDMI cable, though this is rarely used in the PC space.

Shall provide audio extraction of HDMI and DisplayPort two-channel audio to the Preview and Program analog audio outputs Because the standard has evolved over the years, not all DisplayPort cables will work properly at the latest speeds. The original Display 1.0-1.1a spec allowed for RBR (reduced bit rate) and HBR (high bit rate) cables, capable of 5.18 Gbps and 8.64 Gbps of data bandwidth, respectively. DisplayPort 1.2 introduced HBR2, doubled the maximum data bit rate to 17.28 Gbps and is compatible with standard HBR DisplayPort cables. HBR3 with DisplayPort 1.3-1.4a increased things again to 25.92 Gbps, and added the requirement of DP8K DisplayPort certified cables. Make sure that your HDMI switcher is compatible if you are routing the output of the switcher through a home theater receiver that provides decoding for advanced audio formats, such as Dolby TrueHD, Atmos, DTS-HD Master Audio, DTS:X.Shall provide selectable, human-readable visual confirmation of HDCP compliance when encrypted content is sent to a non-HDCP compliant display The standard in the past has been 24-bit color, or 8 bits each for the red, green and blue color components. HDR and high color depth displays have bumped that to 10-bit color, with 12-bit and 16-bit options as well, though the latter two are mostly in the professional space. Generally speaking, display signals use either 24 bits per pixel (bpp) or 30 bpp, with the best HDR monitors opting for 30 bpp. Multiply the color depth by the number of pixels and the screen refresh rate and you get the minimum required bandwidth. We say 'minimum' because there are a bunch of other factors as well. Note that there are two bandwidth columns: transmission rate and data rate. The DisplayPort and HDMI digital signals use bitrate encoding of some form — 8b/10b for most of the older standards, 16b/18b for HDMI 2.1, and 128b/132b for DisplayPort 2.0. 8b/10b encoding for example means for every 8 bits of data, 10 bits are actually transmitted, with the extra bits used to help maintain signal integrity (eg, by ensuring zero DC bias). HDMI cable requirements have changed over time, just like DisplayPort. One of the big advantages is that high quality HDMI cables can be up to 15m (49.2 feet) in length — five times longer than DisplayPort. That may not be important for a display sitting on your desk, but it can definitely matter for home theater use. Originally, HDMI had two categories of cables: category 1 or standard HDMI cables are intended for lower resolutions and/or shorter runs, and category 2 or “High Speed” HDMI cables are capable of 1080p at 60 Hz and 4K at 30 Hz with lengths of up to 15m.

You can use an HDMI switcher with two HDMI outputs to send the same HDMI signal to two TVs or a video projector and TV, but you can use an HDMI splitter if you don't need a switcher. The Radeon software should alert you to the problem with an error message, but this is easy to miss when it pops up. Open the Radeon software and have a look at the notifications. The message will be: Shall provide picture controls for brightness, contrast, and detail, as well as horizontal and vertical sizing, positions, and zoom for both Preview and Program output buses Other use cases might push you toward DisplayPort as well, like if you want to use MST to have multiple displays daisy chained from a single port. That's not a very common scenario, but DisplayPort does make it possible. Home theater use on the other hand continues to prefer HDMI, and the auxiliary channel can improve universal remote compatibility. If you're hooking up your PC to a TV, HDMI is usually required, as there aren't many TVs that have a DisplayPort input. With a maximum data rate of 25.92 Gbps, DisplayPort 1.4 can handle 4K resolution 24-bit color at 98 Hz, and dropping to 4:2:2 YCbCr gets it to 144 Hz with HDR. Alternatively, DSC allows up to 4K and 240 Hz, even with HDR. Keep in mind that 4K HDR monitors running at 144 Hz or more carry premium pricing, so gamers will more likely be looking at something like a 144Hz display at 1440p. That only requires 14.08 Gbps for 24-bit color or 17.60 Gbps for 30-bit HDR, which DP 1.4 can easily handle.

Apple cancelled this, now what?

For Nvidia gamers, your best option right now is a DisplayPort 1.4 connection to a G-Sync certified (compatible or official) display. Alternatively, HDMI 2.1 with a newer display works as well. Both the RTX 30-series and 40-series cards support the same connection standards, for better or worse. Most graphics cards will come with three DisplayPort connections and a single HDMI output, though you can find models with two HDMI and two (or three) DisplayPort connections as well — only four active outputs at a time are supported. The latest display connectivity standards are DisplayPort and HDMI ( High-Definition Multimedia Interface). DisplayPort first appeared in 2006, while HDMI came out in 2002. Both are digital standards, meaning all the data about the pixels on your screen is represented as 0s and 1s as it zips across your cable, and it's up to the display to convert that digital information into an image on your screen.