Question HTPC which specs are important for playback ?

[toyopl]

Building new htpc, and wanted to try AMD this time.
Using htpc only for streaming Netflix and Amazon, but I can use that on TV app.
Also using for my media collection on HDD, moving to 4k contect next year.

Mobo specs are confusing, not sure which ones I need to play my collections in best quality they can play at.
CPU AMD Ryzen™ 5 3400G with Radeon™ RX Vega 11 Graphics

Intel z390 (for comparison):

• Supports Intel UHD Graphics Built-in Visuals : Intel Quick Sync Video with AVC, MVC (S3D) and MPEG-2 Full HW Encode1, Intel InTru™ 3D, Intel Clear Video HD Technology, Intel Insider™, Intel UHD Graphics
• DirectX 12
• HWA Encode / Decode: AVC / H.264, HEVC / H.265 8-bit, HEVC / H.265 10-bit, VP8, VP9 8-bit, VP9 10-bit (Decode only), MPEG2, MJPEG, VC-1
• Three graphics output options: HDMI, DisplayPort 1.2 and Intel Thunderbolt™ 3
• Supports Triple Monitor
• Supports HDMI 2.0 with max. resolution up to 4K x 2K (4096x2160) @ 60Hz
• Supports DisplayPort 1.2 with max. resolution up to 4K x 2K (4096x2304) @ 60Hz
• Supports Intel Thunderbolt™ 3 with max. resolution up to 4K x 2K (4096x2304) @ 60Hz
• Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and HBR (High Bit Rate Audio) with HDMI 2.0 Port (Compliant HDMI 2.0 monitor is required)
• Supports HDR (High Dynamic Range) with HDMI 2.0
• Supports HDCP 2.2 with HDMI 2.0, DisplayPort 1.2 and Intel Thunderbolt™ 3
• Supports 4K Ultra HD (UHD) playback with HDMI 2.0, DisplayPort 1.2 and Intel Thunderbolt™ 3

AMD x470:

• Integrated AMD Radeon™ Vega Series Graphics in Ryzen Series APU*
• DirectX 12, Pixel Shader 5.0
• Shared memory default 2GB. Max Shared memory supports up to 16GB.**
• Dual graphics output: support HDMI and DisplayPort 1.2 ports by independent display controllers
• Supports HDMI 2.0 with max. resolution up to 4K x 2K (4096x2160) @ 60Hz
• Supports DisplayPort 1.2 with max. resolution up to 4K x 2K (4096x2160) @ 60Hz
• Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and HBR (High Bit Rate Audio) with HDMI 2.0 Port (Compliant HDMI 2.0 monitor is required)
• Supports HDCP 1.4 with HDMI 2.0 and DisplayPort 1.2 Ports
• Supports 4K Ultra HD (UHD) playback with HDMI 2.0 and DisplayPort 1.2 Ports

AMD B450:
Integrated AMD Radeon™ Vega Series Graphics in Ryzen Series APU*

• Integrated AMD Radeon™ R-Series Graphics in A-series APU*
• DirectX 12, Pixel Shader 5.0
• Shared memory default 2GB. Max Shared memory supports up to 16GB.**
• Dual graphics output: Support HDMI and DisplayPort 1.2 by independent display controllers
• Supports HDMI 2.0 with max. resolution up to 4K x 2K (4096x2160) @ 60Hz
• Supports DisplayPort 1.2 with max. resolution up to 4K x 2K (4096x2160) @ 60Hz
• Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and HBR (High Bit Rate Audio) with HDMI 2.0 Ports (Compliant HDMI 2.0 monitor is required)
• Supports HDCP 1.4 with HDMI 2.0 and DisplayPort 1.2 Ports
• Supports 4K Ultra HD (UHD) playback with HDMI 2.0 and DisplayPort 1.2 Ports

 

[jon96789]

I thought only Intel CPUs could playback UHD discs because of the copy protection? Am I wrong?