Pojedinosti o AMD Navi Radeon ekranu i multimedijskom motoru



Two of the often overlooked components of a new graphics architecture are the I/O and multimedia capabilities. With its Radeon RX 5700-series 'Navi 10' graphics processor, AMD gave the two their first major update in over two years, with the new Radeon Display Engine, and Radeon Multimedia Engine. The Display Engine is a hardware component that handles the graphics card's physical display I/O. The Radeon Multimedia Engine is a set of fixed-function hardware that provides CODEC-specific acceleration to offload your CPU.

Navi Radeon Display Engine sadrži ažuriranu izvedbu DisplayPort 1.4 HDR koja može upravljati 8K zaslonom na 60 Hz jednim kabelom. Također može podnijeti 4K UHD na 240 Hz s jednim kabelom. Oni također uključuju HDR i 10-bitnu boju. To se postiže primjenom DSC 1.2a (kompresija strujnog prikaza). Zaslon kontroler također podržava unutarnju dubinu boje od 30 bpp. HDMI implementacija ostaje HDMI 2.0. Implementacija protokola višeslojnog protokola (MPO) sada podržava način male potrošnje. Ovo bi, u teoriji, trebalo smanjiti potrošnju napajanja GPU-a tijekom rada u praznom hodu ili reprodukcije videa.

The Radeon Multimedia Engine is updated with support for more CODECs. The 'Navi 10' GPU provides hardware-acceleration for decoding VP9 video at formats of up to 4K @ 90 fps (frames per second), or 8K @ 24 fps. The H.265 HEVC implementation is more substantial, with hardware-accelerated encoding of 4K at frame-rates of up to 60 fps. H.265 HEVC decoding is accelerated at 8K @ 24 fps, and 4K @ 90 fps, and 1080p at up to 360 fps. H.264 MPEG4 encoding gets a boost of 4K @ 150 fps, and 1080p @ 600 fps decoding; and 4K @ 90 fps and 1080p @ 150 fps encoding.