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<div class="moz-cite-prefix">Den 03.12.2023 22:29, skrev Terje J.
Hanssen:<br>
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<blockquote type="cite"
cite="mid:616b1943-0168-4189-a8b7-5944721447a9@gmail.com">
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Already touched this topic barely in another thread<br>
<a class="moz-txt-link-freetext"
href="https://lists.cinelerra-gg.org/pipermail/cin/2023-December/007346.html"
moz-do-not-send="true">https://lists.cinelerra-gg.org/pipermail/cin/2023-December/007346.html</a><br>
<br>
But so many SW and HW pieces are mentioned around, it is almost a
full-time reading and study:<br>
VAAPI, MESA, VULKAN, Intel Quick Sync Video etc......<br>
<br>
I realize my aging hardware which is fast enough for other tasks,
needs some "AV1 upgrade", if possible.<br>
<br>
But first I wonder, what is expected possible to do (obtain) with
AV1 de-/encoding on my existing 64bit hardware:<br>
<br>
<blockquote><font face="monospace">1) laptop 2018: Dell XPS
13-9370: quad core i7-8550U CPU (8. gen Kabylake) and Intel
UHD Graphics</font><br>
<br>
<font face="monospace">2) WS infinity: MSI Z170A mobo: quad
core i7-6700K CPU (6. gen Skylake), NVIDIA GeForce GT-730
graphics</font><br>
</blockquote>
<br>
A budget friendly first "AV1 HW upgrade" of the workstation 2) if
possible, would be to add a new GPU as Intel Arc A380.<br>
But the question is if this will work at all on that much older
(2015) Skylake platform with i7-6700K CPU?<br>
I've seen CPU bottlenecks has been mentioned and that Arc A380 is
targeted at newer generations CPU ... <br>
</blockquote>
<br>
Extracted from the first wikipedia reference below about Intel
Alchemist GPUs:
<ul>
<li>Featuring 8 Xe-cores, the<b> A380 supports PCI Express 4.0</b>
and has a total board power (TBP) of 75W. The graphics card is
equipped with 6GB GDDR6 memory and a graphics memory interface
of 96 bits, providing a memory bandwidth of 186GB/s.</li>
<li>Bus interface A380: PCIe 4.0 x8 and for >=A580:
PCIe 4.0 x16 </li>
</ul>
That is, the keyword here seems to be PCIe 4.0 bus speed as a
requirement to utilize the Arc A380 GPU for HWA AV1 encoding (maybe
also for other GPUs?)<br>
My existing Skylake WS 2) above has PCie 3.0 only.<br>
<br>
PCIe 4.0<br>
<a class="moz-txt-link-freetext"
href="https://no.wikipedia.org/wiki/PCI_Express"
moz-do-not-send="true">https://no.wikipedia.org/wiki/PCI_Express</a><br>
<a class="moz-txt-link-freetext"
href="https://www.techreviewer.com/learn-about-tech/what-is-pcie-40/"
moz-do-not-send="true">https://www.techreviewer.com/learn-about-tech/what-is-pcie-40/</a><br>
<br>
Motherboards Support PCIe 4.0<br>
<a class="moz-txt-link-freetext"
href="https://www.makeuseof.com/best-budget-pcie-4-motherboards/"
moz-do-not-send="true">https://www.makeuseof.com/best-budget-pcie-4-motherboards/</a><br>
<a class="moz-txt-link-freetext"
href="https://www.techreviewer.com/tech-answers/which-motherboards-support-pcie-40/"
moz-do-not-send="true">https://www.techreviewer.com/tech-answers/which-motherboards-support-pcie-40/</a><br>
<br>
Maybe also information of interest for WS building will be clarified
within a week, when Intel release their new "Meteor Lake, Core Ultra
mobile processors(?)<br>
<a class="moz-txt-link-freetext"
href="https://en.wikipedia.org/wiki/Meteor_Lake"
moz-do-not-send="true">https://en.wikipedia.org/wiki/Meteor_Lake</a><br>
<br>
<blockquote type="cite"
cite="mid:616b1943-0168-4189-a8b7-5944721447a9@gmail.com"> <br>
References:<br>
AV1 Encoding on a Budget: The Intel Arc A380 Approach<br>
<a class="moz-txt-link-freetext"
href="https://medium.com/@contact_45426/av1-encoding-on-a-budget-the-intel-arc-a380-approach-d72367f2f349"
moz-do-not-send="true">https://medium.com/@contact_45426/av1-encoding-on-a-budget-the-intel-arc-a380-approach-d72367f2f349</a><br>
<a class="moz-txt-link-freetext"
href="https://history-computer.com/intel-arc-a380-full-review-of-intels-entry-level-gpu/"
moz-do-not-send="true">https://history-computer.com/intel-arc-a380-full-review-of-intels-entry-level-gpu/</a><br>
<br>
AV1 fixed-function hardware encoder is included in Alchemist GPUs
as part of the Intel Quick Sync Video core.<br>
<a class="moz-txt-link-freetext"
href="https://en.wikipedia.org/wiki/Intel_Arc#Alchemist"
moz-do-not-send="true">https://en.wikipedia.org/wiki/Intel_Arc#Alchemist</a><br>
<a class="moz-txt-link-freetext"
href="https://en.wikipedia.org/wiki/AV1#Hardware"
moz-do-not-send="true">https://en.wikipedia.org/wiki/AV1#Hardware</a><br>
<a class="moz-txt-link-freetext"
href="https://en.wikipedia.org/wiki/Intel_Quick_Sync_Video#Hardware_decoding_and_encoding"
moz-do-not-send="true">https://en.wikipedia.org/wiki/Intel_Quick_Sync_Video#Hardware_decoding_and_encoding</a><br>
<br>
<br>
</blockquote>
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