3 ms·
> ASIC power draw for decoders is typically in the <1W range. Many times even "standalone" HW decoders use or share GPU components (e.g., almost always the me
by AshamedCaptain 5y ago
> ASIC power draw for decoders is typically in the <1W range.
Many times even "standalone" HW decoders use or share GPU components (e.g., almost always the memory). Just bumping the memory controller clock up of the GPU already consumes >10W on my system.
- rektide 5y agoit's hard for me to imagine that video decoding would need a significant bandwidth boost like this to run. that seems like either a driver or hardware issue, and one that ought be solveable. 4k60 is 12Gbps. even inflating that number a bunch, it's hard to imagine most discrete graphics card memories needing more than their base-clocks to serve this. on mobile at least, where graphics are integrated & using main memory, there ought be little/no difference in memory throughput use. last, some new GPU's like AMD's Navi (RX6xxx) have on-package caches, "Infinity Cache", between i think 64-128MB. i want to think think could be used like Intel's Crystal Well L4 eDRAM, to keep from needing to go to main memory at all. how much if any of a win that is & whether that would even be possible i'm not sure. i'm somewhat skeptical that there really is a problem here. if there is, i suspect it's somewhat rare & probably a bit of an oversight. i should test though. i would love get a wider picture of what the real impacts of video decoding are.