{"id":790411,"date":"2023-05-03T11:50:00","date_gmt":"2023-05-03T09:50:00","guid":{"rendered":"https:\/\/www.tomshardware.fr\/?p=790411"},"modified":"2023-07-19T15:32:22","modified_gmt":"2023-07-19T13:32:22","slug":"nvidia-affirme-que-son-encodeur-av1-est-meilleur-que-ceux-damd-et-dintel","status":"publish","type":"post","link":"https:\/\/www.tomshardware.fr\/nvidia-affirme-que-son-encodeur-av1-est-meilleur-que-ceux-damd-et-dintel\/","title":{"rendered":"NVIDIA affirme que son encodeur AV1 est meilleur que ceux d&#8217;AMD et d&#8217;Intel"},"content":{"rendered":"\n<p>La version 29.1 d&#8217;OBS Studio prend en charge l&#8217;encodage AV1 sur les GPU GeForce RTX 4000, par le biais de la la huiti\u00e8me g\u00e9n\u00e9ration du NVENC (NVIDIA Encoder). Selon NVIDIA, cet encodage est jusqu&#8217;\u00e0 50 % plus efficace que l&#8217;encodage H.264 \u2013 40\u00a0% en moyenne \u2013 et \u00ab\u00a0offre des des images de meilleure qualit\u00e9 que les GPU concurrents\u00a0\u00bb.<\/p>\n\n\n\n<figure class=\"wp-block-embed aligncenter is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"responsive-container embed-youtube-com\"><iframe title=\"Unlock Higher Quality Live Streams with AV1 Support on GeForce RTX 40 Series GPUs\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/kxznHq8be8I?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<\/div><\/figure>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2023\/05\/AV1-blog-3-h264vsav1-chart.png\"><img alt=\"Image 1 : NVIDIA affirme que son encodeur AV1 est meilleur que ceux d&#039;AMD et d&#039;Intel\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2023\/05\/AV1-blog-3-h264vsav1-chart-1024x576.png\" alt=\"\" class=\"wp-image-790412\" srcset=\"https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2023\/05\/AV1-blog-3-h264vsav1-chart-1024x576.png 1024w, https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2023\/05\/AV1-blog-3-h264vsav1-chart-300x169.png 300w, https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2023\/05\/AV1-blog-3-h264vsav1-chart-768x432.png 768w, https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2023\/05\/AV1-blog-3-h264vsav1-chart-1536x863.png 1536w, https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2023\/05\/AV1-blog-3-h264vsav1-chart-1320x742.png 1320w, https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2023\/05\/AV1-blog-3-h264vsav1-chart.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">\u00a9 NVIDIA<\/figcaption><\/figure><\/div>\n\n\n<p>Au sujet de la sup\u00e9riorit\u00e9 du <a href=\"https:\/\/www.tomshardware.fr\/codec-video-av1-libre-open-source-et-30-plus-efficace-que-hevc-et-vp9\/\">codec AV1<\/a> sur le H.264, cela n&#8217;a bien s\u00fbr rien d\u2019exclusif aux GeForce RTX. Depuis ses d\u00e9buts en 2018, le codec open source de l&#8217;Alliance for Open Media est pr\u00e9sent\u00e9 comme d\u00e9livrant un taux de compression 30 % \u00e0 40 % plus \u00e9lev\u00e9 que l\u2019HEVC ou le VP9\u00a0; ces gains se retrouvent pour chaque GPU supportant compl\u00e8tement l\u2019AV1 (cartes graphiques Intel Arc, Radeon RX 7000, GeForce RTX 4000). Concernant plus sp\u00e9cifiquement les GPU NVIDIA RTX 40, ils s&#8217;appuient sur l&#8217;encodeur NVENC de 8e g\u00e9n\u00e9ration. Celui est en mesure d&#8217;encoder jusqu&#8217;\u00e0 8K \u00e0 60 images par seconde.<\/p>\n\n\n\n<p><strong>\u00c0 lire &gt; <a href=\"https:\/\/www.tomshardware.fr\/larc-a770-bat-la-rtx-4090-sur-le-terrain-du-decodage-8k-av1\/\">L\u2019Arc A770 bat la RTX 4090\u2026 sur le terrain du d\u00e9codage 8K AV1<\/a><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Jusqu&#8217;\u00e0 50 % de gains, et un encodeur sup\u00e9rieur \u00e0 ceux de la concurrence, d&#8217;apr\u00e8s NVIDIA<\/h2>\n\n\n\n<p>\u00c0 propos de l\u2019efficacit\u00e9 suppl\u00e9mentaire pouvant s\u2019\u00e9lever \u00ab\u00a0jusqu\u2019\u00e0 50\u00a0%\u00a0\u00bb, NVIDIA donne l\u2019exemple de la capacit\u00e9 de l\u2019AV1 \u00e0 diffuser en continu un flux 4K \u00e0 60 images par seconde avec une bande passante ascendante de 10 Mbit\/s, contre 20 Mbit\/s avec le H.264.<\/p>\n\n\n\n<p>Concernant la pr\u00e9tendue qualit\u00e9 sup\u00e9rieure offerte par ses GPU GeForce, NVIDIA stipule\u00a0: \u00ab\u00a0Con\u00e7u pour supporter les rigueurs des cr\u00e9ateurs de contenu professionnels, le NVENC pr\u00e9serve la qualit\u00e9 vid\u00e9o avec une plus grande pr\u00e9cision que les encodeurs concurrents. Les utilisateurs de GeForce RTX peuvent diffuser des images de meilleure qualit\u00e9 au m\u00eame d\u00e9bit que les produits concurrents ou encoder \u00e0 un d\u00e9bit inf\u00e9rieur tout en conservant une qualit\u00e9 d&#8217;image similaire.\u00a0\u00bb L\u2019entreprise fournit \u00e9galement l\u2019illustration ci-dessous.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2023\/05\/AV1-blog-1-SxSxS.jpg\"><img alt=\"Image 2 : NVIDIA affirme que son encodeur AV1 est meilleur que ceux d&#039;AMD et d&#039;Intel\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2023\/05\/AV1-blog-1-SxSxS-1024x576.jpg\" alt=\"\" class=\"wp-image-790413\" srcset=\"https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2023\/05\/AV1-blog-1-SxSxS-1024x576.jpg 1024w, https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2023\/05\/AV1-blog-1-SxSxS-300x169.jpg 300w, https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2023\/05\/AV1-blog-1-SxSxS-768x432.jpg 768w, https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2023\/05\/AV1-blog-1-SxSxS-1536x864.jpg 1536w, https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2023\/05\/AV1-blog-1-SxSxS-1320x743.jpg 1320w, https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2023\/05\/AV1-blog-1-SxSxS.jpg 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">\u00a9 NVIDIA<\/figcaption><\/figure><\/div>\n\n\n<p>Apr\u00e8s avoir consult\u00e9 quelques tests sur le sujet, la plupart s\u2019accordent sur une l\u00e9g\u00e8re sup\u00e9riorit\u00e9 du NVENC de NVIDIA mais soulignent les nets progr\u00e8s de l\u2019AMD AMF (<em>Advanced Media Framework<\/em>) au fil des mises \u00e0 jour.<\/p>\n\n\n\n<p class=\"has-small-font-size\"><em>Source : communiqu\u00e9 de presse NVIDIA, <a href=\"https:\/\/blogs.nvidia.com\/blog\/2023\/05\/02\/av1-obs29-youtube\/\" target=\"_blank\" rel=\"noreferrer noopener\">NVIDIA<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Une all\u00e9gation prof\u00e9r\u00e9e \u00e0 l'occasion du lancement de la version 29.1 d'OBS Studio, laquelle prend en charge l'encodage AV1 sur les GPU GeForce RTX 40 Series avec la huiti\u00e8me g\u00e9n\u00e9ration de NVENC.<\/p>","protected":false},"author":87,"featured_media":790413,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[487,4072],"tags":[4063],"hubs":[],"class_list":["post-790411","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualite","category-cartes-graphiques","tag-geforce-rtx-40"],"acf":{"display_mode":"medium-img","post_show_excerpt":true,"post_show_in_home":false,"post_show_summary":false,"post_source":"","hide_sidebar":false,"hide_advertising":false},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v23.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>NVIDIA affirme que son encodeur AV1 est meilleur que ceux d&#039;AMD et d&#039;Intel<\/title>\n<meta name=\"description\" content=\"Une all\u00e9gation prof\u00e9r\u00e9e \u00e0 l&#039;occasion du lancement de la version 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