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TECH BLOG / April 1, 2019

Recommended Systems for 8K Playback



By Mauricio Alvarez-Mesa, PhD Spin Player is based on a highly optimized HEVC decoder and video rendering engine. This software solution allows to play 8K video using compact and cost-effective PC systems.

In this tech blog we provide a set of recommendations of PC configurations for 8K video playback, and we also describe 8K display set-ups using commercially available 8K TVs, monitors, and projectors.

Spin Player Performance

The final performance of the media player depends mainly on the content properties, input bitrate, and the platform performance:

  • Content properties: The player’s performance is affected by content properties such as resolution, chroma format (4:2:0, 4:2:2, 4:4:4), bit depth (10-bit, 12-bit) and spatial and temporal activity in the input video.
  • Bitrate: HEVC decoding performance depends directly on the input bitrate, the higher the birate the higher the performance required to achieve a target application (e.g. 8Kp60). The bitrate, in turn,  depends on the encoding options that were used during the encoding of the input video, including among others: bitrate settings, rate control method, GOP size, intra-frame period,  and block size.
  • Platform performance: The decoding performance directly depends on the CPU performance: clock frequency and number of CPU cores. Video rendering performance depends on the GPU performance: frequency, number of cores, memory bandwidth.

Parallel Scalability

The HEVC decoder integrated in Spin Player has been extensively optimized for performance with advanced multi-threading in order to make an efficient use of modern multicore CPU architectures. Different parallelization methods are supported including: Wavefront Parallel Processing (WPP), slices, tiles, and frame-level parallelism. The best method is automatically selected by the player.  Common formats used in the industry and supported by Spin Player include:

  • WPP: commonly used by software encoders
  • 4 slices: as defined by the ARIB ATD-B32 standard
  • 2×2 tiles: used by some 8K hardware encoders

The performance of the Media player scales very well with the number of CPU cores. By using CPUs with higher core counts it is possible to increase the performance for applications that require higher bitrates, higher quality chroma formats (4:2:2 or 4:4:4), higher frame rates, and even resolutions beyond 8K.

PC Configuration for 8Kp60 Playback

We have conducted a detailed benchmarking analysis using hard-to-decode content in 8K resolution in order to identify the required properties of the system for 8Kp60 payback applications.

The table below describes the properties of the recommended platform for 8K distribution, contribution, and high-fidelity use cases. The recommended bitrate for each application is a range of bitrates being used in the industry for 8K applications.

Use CaseFormatRecommended BitratePlatform
Entry-level8Kp60
4:2:0
10-bit
50 to 85 Mbps- CPU: Intel Core i9-9900K (8 cores)
- GPU: AMD Radeon Pro WX 4100
- Memory: 16 GB (2x 8GB DDR4 3200)
- OS: Windows 10 64-bit
Distribution8Kp60
4:2:0
10-bit
70 - 120 Mbps- CPU: Intel Core i9-7920x (12 cores)
- GPU: Nvidia Quadro P4000, or AMD Radeon Pro WX 7100
- Memory: 16 GB (4x 4GB, DDR4 3200)
- OS: Windows 10 64-bit
Contribution8Kp60
4:2:2
10-bit
200 - 250 Mbps- CPU: Intel Core i9-7960X (16 cores)
- GPU: Nvidia Quadro P4000, or AMD Radeon Pro WX 7100
- Memory: 32 GB (4x 8GB, DDR4 3200)
- OS: Windows 10 64-bit
High-Fidelity8Kp60
RGB/4:4:4
12-bit
500 - 600 Mbps- CPU: 2x Intel Xeon Platinum 8168 (48 cores)
- GPU: NVIDIA Quadro P4000, or AMD Radeon Pro WX 7100
- Memory: 96 GB (12x 8GB, DDR4 2666)
- OS: Windows 10 64-bit

Display Systems for 8Kp60

We have tested Spin Player with different commercial 8K displays, including an 8K TV from Sharp and an 8K monitor from Dell.

Sharp 8K TV

  • TV Model: Sharp Aquos LC-70X500
  • AV connector: 4x DisplayPort 1.4 to 4x HDMI 2.0b
  • DisplayPort to HDMI converters: recommended Club3D CAC-1080
Spin Player and Sharp 8K TV
Display system for 8Kp60 using Sharp Aquos LC-70X500

Dell 8K Monitor

  • Monitor model: Dell UltraSharp UP3218K
  • AV connector: 2x DisplayPort
Spin Player and Dell 8K Monitor
Display system for 8Kp60 using Dell UltraSharp UP3218K

3G SDI Display or Projector

  • 3G SDI Boards: 2x AJA Corvid 88
  • AV connector: 16x 3G SDI
  • Display/Projector:  8K Projector with 3G SDI input
3G SDI 9Kp60 playback using Spin Player
Display system for 8Kp60 using 3G SDI with AJA boards

Note and Disclaimer

These recommendations are based on internal tests performed by Spin Digital. This information is provided “as is” and it does not imply any warranty or assurance. If you have more specific requirements, please contact us.

Spin Player is a trademark of Spin Digital Video Technologies GmbH.

Other trademarks remain the property of their owners, and are used here for descriptive purposes.

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Helmholtzstraße 2-9, 10587 Berlin. Germany

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