It was reportedly transmitted to the cloud in 8K, 60fps and HDR at this Tokyo Olympics, recorded in 4x12G SDI format (taking up 48GB of storage per second), which is the raw uncompressed input (10bit/ycbcr422). It will then be compressed into two formats, HEVC 250 Mbps (ycbcr420) and a similar format with a bitrate of 50-100 Mbps. The encoding server used this time is equipped with four Xeon Platinum 8380H processors, each with 28 cores and 56 threads (112 cores and 224 threads for the four processors), an L3 cache of 38.5MB, a base frequency of 2.9GHz, a core frequency of 4.3GHz, and a TDP of 250W. The server is paired with a 480GB Intel Optane 900P SSD, and 384GB of DDR4-3200 memory. The vast majority of the world does not use 8K signals for broadcast as NHK does, but generally 4K at best. The requirements for playing such 8K video are not low, requiring an 8K TV with an HDMI 2.1 interface. The recommended playback device configuration is an Intel Xeon W-2295 processor (18 cores and 36 threads) with 64GB of RAM.
