{"id":839984,"date":"2023-07-24T14:30:00","date_gmt":"2023-07-24T12:30:00","guid":{"rendered":"https:\/\/www.tomshardware.fr\/?p=839984"},"modified":"2023-09-05T08:33:38","modified_gmt":"2023-09-05T06:33:38","slug":"amd-lance-une-atypique-radeon-rx-7900-gre-avec-seulement-16-go-de-vram","status":"publish","type":"post","link":"https:\/\/www.tomshardware.fr\/amd-lance-une-atypique-radeon-rx-7900-gre-avec-seulement-16-go-de-vram\/","title":{"rendered":"AMD lance une atypique Radeon RX 7900 GRE avec seulement 16 Go de VRAM"},"content":{"rendered":"\n<p>AMD et ses partenaires proposent <strong>une nouvelle Radeon RDNA 3, la Radeon RX 7900 GRE<\/strong>. C\u2019est une alternative moins on\u00e9reuse aux <a href=\"https:\/\/www.tomshardware.fr\/test-amd-radeon-7900-xt-7800-7700-7600-7500-rdna3-caracteristiques-performances-prix\/\">Radeon RX 7900 XTX et RX 7900 XT<\/a>. Malheureusement, cette carte graphique n\u2019est disponible qu\u2019en Chine.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"1200\" height=\"566\" src=\"https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2023\/07\/RADEON-7900-GRE-NITRO-SAPPHIRE-11.jpg\" alt=\"Sapphire Radeon RX 7900 GRE\" class=\"wp-image-839992\" srcset=\"https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2023\/07\/RADEON-7900-GRE-NITRO-SAPPHIRE-11.jpg 1200w, https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2023\/07\/RADEON-7900-GRE-NITRO-SAPPHIRE-11-300x142.jpg 300w, https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2023\/07\/RADEON-7900-GRE-NITRO-SAPPHIRE-11-768x362.jpg 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><figcaption class=\"wp-element-caption\">\u00a9 @wnxod<\/figcaption><\/figure><\/div>\n\n\n<p>Le sigle GRE (nous supposons que les utilisateurs sont libres de prononcer \u00ab&nbsp;Grrr&nbsp;\u00bb ou \u00ab&nbsp;Greuh&nbsp;\u00bb) signifie Golden Rabbit Edition. C\u2019est donc une r\u00e9f\u00e9rence \u00e0 l\u2019ann\u00e9e du lapin. Notez que cette pratique n\u2019a rien d\u2019in\u00e9dit. En 2020, pour l\u2019ann\u00e9e du rat par exemple, AMD avait propos\u00e9 une Radeon RX 590 GME (Golden Mouse Edition).<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"1200\" height=\"636\" src=\"https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2023\/07\/SAPPHIRE-RADEON-7900-GRE-11.jpg\" alt=\"Sapphire Radeon RX 7900 GRE\" class=\"wp-image-839993\" srcset=\"https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2023\/07\/SAPPHIRE-RADEON-7900-GRE-11.jpg 1200w, https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2023\/07\/SAPPHIRE-RADEON-7900-GRE-11-300x159.jpg 300w, https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2023\/07\/SAPPHIRE-RADEON-7900-GRE-11-768x407.jpg 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><figcaption class=\"wp-element-caption\">\u00a9 @wnxod<\/figcaption><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u00c0 lire &gt; <a href=\"https:\/\/www.tomshardware.fr\/une-premiere-idee-des-tarifs-des-rx-7700-et-rx-7800-preparez-le-billet-violet\/\">Une premi\u00e8re id\u00e9e des tarifs des RX 7700 et RX 7800 : pr\u00e9parez le billet violet !<\/a><\/strong><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-de-84-a-80-unites-de-calcul-moins-de-vram-et-d-infinity-cache\">De 84 \u00e0 80 unit\u00e9s de calcul, moins de VRAM et d&#8217;Infinity Cache<\/h2>\n\n\n\n<p>Les caract\u00e9ristiques de la <strong>Radeon RX 7900 GRE diff\u00e8rent l\u00e9g\u00e8rement de celles de la Radeon RX 7900 XT<\/strong>. La carte conserve un GPU Navi 31, mais avec 80 unit\u00e9s de calcul activ\u00e9es, soit 5120 processeurs de flux, et atteint une fr\u00e9quence de 2,4 GHz.<\/p>\n\n\n\n<p>En outre, la <strong>RX 7900 GRE perd un MCD<\/strong> (<em>Memory Complex Die<\/em>) et voit donc sa quantit\u00e9 de VRAM chuter \u00e0 16 Go contre 20 Go pour la version XT. Quant \u00e0 l\u2019interface m\u00e9moire, elle passe \u00e0 256 bits. La quantit\u00e9 d\u2019Infinity Cache baisse \u00e9galement, avec 64 Mo au lieu de 80 Mo. R\u00e9sultat, la bande passante m\u00e9moire descend \u00e0 640 Mo\/s et la bande passante m\u00e9moire effective, \u00e0 2,56 Go\/s. En mati\u00e8re de performances, la Radeon RX 7900 GRE devrait donc p\u00e2tir de ces changements dans des applications \u00e0 forte demande en bande passante passante m\u00e9moire.<\/p>\n\n\n\n<p>Le mod\u00e8le pr\u00e9sent\u00e9, celui de Sapphire, poss\u00e8de toujours une paire de connecteurs 8-pin. Cette Radeon RX 7900 GRE aurait toutefois <strong>un TGP l\u00e9g\u00e8rement inf\u00e9rieur, d\u2019environ 300 W<\/strong>.<\/p>\n\n\n\n<p>Vous l\u2019imaginez, outre l\u2019hommage aux lapins, l\u2019int\u00e9r\u00eat de cette carte r\u00e9sidera certainement dans son tarif, qui promet d&#8217;\u00eatre plus attractif que celui de la Radeon RX 7900 XT. H\u00e9las, il n\u2019est pas connu pour le moment. Enfin, si cette Radeon RX 7900 GRE n&#8217;est pas pr\u00e9vue pour le march\u00e9 europ\u00e9en \u00e0 ce stade, les clients du Vieux Continent devraient bient\u00f4t pouvoir mettre la main sur des <a href=\"https:\/\/www.tomshardware.fr\/amd-prepare-des-rx-7700-et-7800-desktop-les-cartes-que-les-joueurs-attendent\/\">Radeon RX 7800 et Radeon RX 7700 \u2013 deux r\u00e9f\u00e9rences dont l&#8217;officialisation serait pr\u00e9vue en ao\u00fbt prochain<\/a> ; une autre alternative actuelle reste bien s\u00fbr la <a href=\"https:\/\/www.tomshardware.fr\/test-amd-radeon-rx7600-carte-graphique-jeux-performances-consommation-gaming-1080\/\">Radeon RX 7600<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Caract\u00e9ristiques des trois Radeon RX 7900<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><div class=\"table-wrapper\"><table><tbody><tr><td>Carte graphique<\/td><td><strong>RX 7900 XTX<\/strong><\/td><td><strong>RX 7900 XT<\/strong><\/td><td><strong>RX 7900 GR<\/strong>E<\/td><\/tr><tr><td><strong>Architecture<\/strong><\/td><td>RDNA3 (TSMC N6)<\/td><td>RDNA3 (TSMC N6)<\/td><td><strong>RDNA3 (TSMC N6)<\/strong><\/td><\/tr><tr><td><strong>GPU<\/strong><\/td><td>Navi 31 XTX<\/td><td>Navi 31 XT<\/td><td><strong>Navi 31<\/strong><\/td><\/tr><tr><td><strong>Unit\u00e9s de calcul<\/strong><\/td><td>96<\/td><td>84<\/td><td><strong>80<\/strong><\/td><\/tr><tr><td><strong>Processeurs de flux<\/strong><\/td><td>6144<\/td><td>5376<\/td><td><strong>5120<\/strong><\/td><\/tr><tr><td><strong>Fr\u00e9quence Boost<\/strong><\/td><td>2,5 GHz<\/td><td>2,4 GHz<\/td><td><strong>2,4 GHz<\/strong><\/td><\/tr><tr><td><strong>VRAM<\/strong><\/td><td>24 Go G6<\/td><td>20 Go G6<\/td><td><strong>16 Go G6<\/strong><\/td><\/tr><tr><td><strong>Bus m\u00e9moire<\/strong><\/td><td>384-bit<\/td><td>320-bit<\/td><td><strong>256-bit<\/strong><\/td><\/tr><tr><td><strong>Vitesse m\u00e9moire<\/strong><\/td><td>20 Gbit\/s<\/td><td>20 Gbit\/s<\/td><td>20 Gbit\/s<\/td><\/tr><tr><td><strong>Bande passante m\u00e9moire<\/strong><\/td><td>960 Go\/s<\/td><td>800 Go\/s<\/td><td><strong>640 Go\/s<\/strong><\/td><\/tr><tr><td><strong>Infinity Cache<\/strong><\/td><td>96 Mo<\/td><td>80 Mo<\/td><td><strong>64 Mo<\/strong><\/td><\/tr><tr><td><strong>Bande passante m\u00e9moire effective<\/strong><\/td><td>3500 Go\/s<\/td><td>2900 Go\/s<\/td><td><strong>2560 Go\/s<\/strong><\/td><\/tr><tr><td><strong>TGP<\/strong><\/td><td>355W<\/td><td>&nbsp;315W<\/td><td><strong>300 W<\/strong><\/td><\/tr><tr><td><strong>Alimentation<\/strong><\/td><td>2x 8-pin<\/td><td>2x 8-pin<\/td><td><strong>2x 8-pin<\/strong><\/td><\/tr><tr><td><strong>Interface PCIe<\/strong><\/td><td>Gen4 x16<\/td><td>Gen4 x16<\/td><td><strong>Gen4 x16<\/strong><\/td><\/tr><tr><td><strong>MSRP<\/strong><\/td><td>999 dollars<\/td><td>899 dollars<\/td><td><strong>\u00c0 d\u00e9terminer<\/strong><\/td><\/tr><tr><td><strong>Date de lancement<\/strong><\/td><td>D\u00e9cembre 2022<\/td><td>D\u00e9cembre 2022<\/td><td><strong>Juillet 2023<\/strong><\/td><\/tr><\/tbody><\/table><\/div><\/figure>\n\n\n\n<p class=\"has-small-font-size\"><em>Source : <a href=\"https:\/\/www.tomshardware.com\/news\/amd-radeon-rx-7900-gre-debuts\" target=\"_blank\" rel=\"noreferrer noopener\">Tom&#8217;s Hardware US<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Une Radeon RX 7900 sous le signe du lapin : dot\u00e9e de la m\u00eame quantit\u00e9 de c\u0153urs que la Radeon RX 7900 XT, elle poss\u00e8de moins de VRAM ainsi qu'une bande passante m\u00e9moire inf\u00e9rieure.<\/p>","protected":false},"author":87,"featured_media":839993,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[487,4072],"tags":[578],"hubs":[],"class_list":["post-839984","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualite","category-cartes-graphiques","tag-radeon"],"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>AMD lance une atypique Radeon RX 7900 GRE avec seulement 16 Go de VRAM<\/title>\n<meta name=\"description\" content=\"Une Radeon RX 7900 sous le signe du lapin : dot\u00e9e de la m\u00eame quantit\u00e9 de c\u0153urs que 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