The 8K TV is finally here! Recently, the first consumer-grade 8K TV has hit the market, and 8K monitors are also making an appearance. While 4K has only recently become widespread, there are already enthusiasts eagerly waiting for 8K. Playing 4K content has been somewhat challenging, so people are turning their attention to 8K. But is the early adoption of 8K worth it? Unfortunately, 8K remains a bit of a niche product. Let’s explore why.
Why is 8K content so scarce? There’s no doubt that 8K content is incredibly rare. One major reason is video encoding technology. For a certain resolution to become popular, video encoding plays a crucial role. As the resolution increases, so does the bitrate, requiring higher compression rates to maintain manageable file sizes. Whether it's stored on a hard drive or streamed over a network, handling massive files like those needed for 8K is simply impractical.
In the DVD era, video encoding used MPEG-2. With the advent of Blu-ray, H.264/AVC became necessary to encode 1080p video. Moving to 4K, H.264 struggled, and H.265/HEVC became essential. Compared to 4K, 8K has four times the resolution. Even with the most efficient H.265 encoding, 8K videos would require several times the storage space of 4K Blu-rays. Neither optical discs nor networks can handle such large volumes without drastically reducing the bit rate, which would severely impact picture quality. Thus, due to the lack of proper encoding, 8K content remains scarce, and purchasing an 8K device might be premature.
Can 8K content be decoded successfully? Some argue that despite the scarcity of 8K content, 8K devices could still be useful. However, playing back 8K content presents its own set of challenges. Higher resolutions mean higher decoding demands. Currently, decoding 4K HEVC content requires around 400-500 GOPS. An 8K video encoded with the same method would demand significantly more computational power. Relying solely on a CPU for this task is unlikely to work smoothly, often resulting in dropped frames or stuttering. Even GPU-based solutions face limitations since neither NVIDIA’s PureVideo, AMD’s UVD, nor Intel’s QSV currently supports 8K hard decoding. Additionally, few devices like Blu-ray players or TV boxes support 8K playback. Assessing whether your setup can handle 8K playback is crucial.
On the output side, 8K resolution can be transmitted via HDMI 2.1 or DisplayPort 1.4. HDMI 2.1 is relatively rare in the market, though newer GPUs usually come equipped with DP 1.4. Most 8K displays feature DP 1.4, allowing for dual connections to achieve 8K at 60Hz. However, DP interfaces are uncommon on TVs. At present, HDMI 2.1 TVs are scarce since the standard was only announced earlier this year. Buying an 8K TV without HDMI 2.1 support might not be ideal.
Who is suited for 8K? Despite the scarcity of 8K content and decoding challenges, 8K offers practical uses beyond video. For instance, gaming can benefit from 8K resolutions. Some games support 8K rendering, and with high-end setups like GTX 1080 Ti SLI, it’s playable. Foreign media like Digital Foundry tested 8K gaming performance, showing that dual GTX 1080 Ti can achieve near 60 FPS in "Metal Gear 5: Phantom Pain," around 30 FPS in "Tomb Raider: Rise of the Tomb Raider," and similar results in "Crysis 3" and "Battlefield 1." Slight adjustments to image quality improve performance further, making it enjoyable.
For professionals like graphic designers and photographers, 8K’s high resolution is practical. With over 30 million pixels, an 8K display can show full-sized images without scaling. High-quality 8K displays are a great option for such professionals.
When will 8K become mainstream? The popularity of new technologies depends on both technological maturity and market readiness. Historically, higher resolutions eventually reach mass adoption. For 8K to become widespread, its technology needs to mature and become commercially viable.
Looking at the rise of 4K, its popularity took time. Blu-ray established the UHD-BD standard, providing stability. Current GPUs support 4K H.265/HEVC hard decoding, and affordable players like Xbox One exist. HDMI 2.0 and DP 1.4 interfaces enable 4K output, with displays widely available. These conditions made 4K accessible.
8K needs similar advancements. The 2020 Tokyo Olympics might be a turning point for 8K broadcasting. Until then, 8K lacks practical value for most users. Supporting hardware and software aren’t yet aligned. It’s wise to wait before purchasing 8K products. Let’s approach this rationally.
Our company`s current transformers have high precision,wide range,small volume and good linearity that can be used to the field of electronic watt-hour meter, electric energy metering, electronic detection.
Performance
â—Power frequency insulation strength:The insulation between the primary winding and the secondary winding and the ground part of the CT can bear 4kV power frequency voltage for 1minute
â—Interturn insulation strength:The secondary open circuit, the primary winding through the rated current 1min, no inter-turn damage in the transformer
â—The deviation is better than the industry standards and national standards
Zero Phase Residual Ct,Small Type Current Transformer,Stable Current Transformer,Good Residual Current Transformer
Anyang Kayo Amorphous Technology Co.,Ltd. , https://www.kayoamotech.com