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+--- Thread: AMD "Navi 48" To Feature AV1 Hardware Encoders with B-Frame Support (/showthread.php?tid=417)
AMD "Navi 48" To Feature AV1 Hardware Encoders with B-Frame Support - TechMaster89 - 01-06-2025
AMD "Navi 48" To Feature AV1 Hardware Encoders with B-Frame Support
The "Navi 48" silicon powering AMD's next-generation Radeon RX 9070 series could feature AV1 hardware-accelerated encoding with support for AV1 B-Frames. In video compression, a B-frame is an intermediate frame that lacks image information, but has motion-vector and other data from the previous and next image frames (or I-frames), which helps the decoder reconstruct the image component of the frame based on temporal frame data. This is compute-intensive, but greatly reduces file-size or bitrate of the stream, as almost every other frame lacks image information. Support for AV1 B-Frame hardware-accelerated encode was sniffed out by HXL in a recent commit to one of the SDKs AMD maintains in a public repository through its GPUOpen initiative.
AMD's Radeon RX 9000 series generation powered by the RDNA 4 graphics architecture will be based almost entirely on two chips, the "Navi 48" and "Navi 44," with the latter powering mainstream and mid-range SKUs; while the former powers performance-segment ones. There is no enthusiast-segment chip this time around. The "Navi 48" is expected to feature a more advanced video encode/decode hardware than the one RDNA 3.5 comes with; and AV1 is likely to get the bulk of development as the royalty-free codec gains popularity with online video streaming services. It remains to be seen if next-generation architectures like RDNA 4 or NVIDIA's "Blackwell" support acceleration for VVC.
https://www.techpowerup.com/330345/amd-navi-48-to-feature-av1-hardware-encoders-with-b-frame-support