{"id":248595,"date":"2017-01-03T15:00:00","date_gmt":"2017-01-03T14:00:00","guid":{"rendered":"https:\/\/cms.galaxiemedia.fr\/tomshardware\/2017\/01\/03\/ces-amd-annonce-freesync-2-gestion-du-hdr-et-moins-dinput-lag\/"},"modified":"2023-06-22T18:41:57","modified_gmt":"2023-06-22T16:41:57","slug":"ces-amd-annonce-freesync-2-gestion-du-hdr-et-moins-dinput-lag","status":"publish","type":"post","link":"https:\/\/www.tomshardware.fr\/ces-amd-annonce-freesync-2-gestion-du-hdr-et-moins-dinput-lag\/","title":{"rendered":"CES : AMD annonce FreeSync 2, gestion du HDR et moins d’input lag"},"content":{"rendered":"

Depuis son arriv\u00e9e sur le march\u00e9 en 2015, la technologie FreeSync a eu beaucoup de succ\u00e8s chez les fabricants, notamment gr\u00e2ce \u00e0 son ouverture, sans surco\u00fbt pour les moniteurs. La derni\u00e8re \u00e9volution de la techno, par simple mise \u00e0 jour de pilote, impressionne encore : le LFC (Low Framerate Compensation) permet de doubler artificiellement le nombre d’image par seconde pour garder un taux de rafraichissement rapide m\u00eame lorsque la carte graphique est en difficult\u00e9, passant sous la limite minimale des capacit\u00e9s FreeSync du moniteur. Par cette mise \u00e0 jour, on pouvait d\u00e9j\u00e0 dire que FreeSync \u00e9galait la qualit\u00e9 de G-Sync (qui int\u00e8gre aussi un syst\u00e8me similaire au LFC).<\/p>\n<\/p>\n

Attention, tous les moniteurs ne sont pas compatibles LFC. Sur cette page officielle, AMD r\u00e9pertorie tous les mod\u00e8les du march\u00e9, avec leur compatibilit\u00e9 LFC (onglet\u00a0\u00ab Monitors \u00bb). AMD assure toutefois que toutes les cartes graphiques compatibles FreeSync seront aussi compatibles FreeSync 2.<\/strong><\/p>\n<\/p>\n

<\/p>\n

\n\n
\"Image<\/span><\/td>\n\"Image<\/span><\/td>\n\"Image<\/span><\/td>\n<\/tr>\n<\/table><\/div>\n

<\/span><\/p>\n<\/p>\n

Du HDR sans lag
<\/h3>\n<\/p>\n

C’est la principale nouveaut\u00e9 de FreeSync 2, qui arrivera uniquement sur certains moniteurs haut de gamme en 2017, capables de g\u00e9rer les exigences de la technologie. Au lieu de laisser au moniteur le soin de recaler la source HDR dans les limites de ses possibilit\u00e9s d’affichages (tone mapping<\/em>), c’est FreeSync 2 qui faire le lien, en fonction des capacit\u00e9s d’affichages r\u00e9colt\u00e9es sur le moniteur. Principal avantage : supprimer une grosse partie du retard d’affichage (input lag<\/em>) caus\u00e9 par l’\u00e9cran sur les jeux HDR.<\/p>\n<\/p>\n

\"Image<\/span><\/span><\/span><\/span><\/p>\n<\/p>\n

FreeSync 2 va informer le moteur du jeu en question sur les capacit\u00e9s de l’\u00e9cran en pr\u00e9sence, pour qu’il g\u00e9n\u00e8re un affichage adapt\u00e9, sans avoir recours au tone mapping<\/em>. Il faudra donc une coordination complexe au niveaux des pilotes d’AMD et des jeux. Et il y a fort \u00e0 parier que certains ne seront pas compatibles. Il sera donc aussi possible de repasser automatiquement \u00e0 un mode d’affichage HDR classique dans d’autres applications ne n\u00e9cessitant pas une r\u00e9duction du retard d’affichage, ou simplement incompatibles.<\/p>\n<\/p>\n

\"Image<\/span><\/span><\/span><\/span><\/p>\n<\/p>\n

Une exigence aussi pour les moniteurs<\/h3>\n<\/p>\n

Tous les moniteurs FreeSync ne seront donc pas capables de g\u00e9rer FreeSync 2. Car il faudra satisfaire d’autres conditions : que l’\u00e9cran soit calibr\u00e9 en fonction des informations donn\u00e9es au pilote AMD, pour informer le moteur du jeu sans provoquer de distorsion d’image ou de couleurs. Il faudra aussi que l’\u00e9cran affiche une luminosit\u00e9 et une gamme de couleurs nettement sup\u00e9rieures \u00e0 la norme sRGB (AMD parle du double). Ces moniteurs devront aussi offrir un retard d’affichage tr\u00e8s faible, sans plus de pr\u00e9cision de la part d’AMD. Voil\u00e0 de quoi cantonner FreeSync 2 aux moniteurs les plus haut de gamme… Et donc les plus chers.<\/p>\n","protected":false},"excerpt":{"rendered":"

Une pression de plus sur NVIDIA G-Sync.<\/p>","protected":false},"author":7,"featured_media":224308,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"ep_exclude_from_search":false,"footnotes":""},"categories":[487,4072],"tags":[551,596],"hubs":[],"acf":{"post_show_excerpt":true,"post_source":{"title":"Tom's Hardware US","url":"https:\/\/www.tomshardware.com","target":""}},"yoast_head":"\nCES : AMD annonce FreeSync 2, gestion du HDR et moins d'input lag<\/title>\n<meta name=\"description\" content=\"Une pression de plus sur NVIDIA G-Sync.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.tomshardware.fr\/ces-amd-annonce-freesync-2-gestion-du-hdr-et-moins-dinput-lag\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta 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