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Les spécifications des AMD Radeon HD 7000 en fuite. - OCTeam
HomeNewsAMD Les spécifications des AMD Radeon HD 7000 en fuite.

07

Sep

2011

Les spécifications des AMD Radeon HD 7000 en fuite.

Imprimer
Écrit par Choupy   
Logo_AMD_GraphiqueLa prochaine architecture de carte graphique AMD répondant au nom de code Southern Islands est actuellement toujours prévu pour le quatrième trimestre 2011. Elles seront les premières cartes graphiques AMD Radeon gravées en 28nm. Cette tâche est confiée à TSMC.

Comme vous êtes pressé de découvrir en détail la plus puissante des cartes graphiques de la série HD 7000 là HD 7990, est bien je vais commencer par la moins puissante la HD 7570, le monde est cruel.

Tableau_HD_7000
Deux modèles d’entrée de gamme reposant sur Lombok sont dévoilés :

  • La première la Radeon HD 7570 reposera sur Lombok Pro et elle viendra remplacer l’actuelle HD 6570 (Turks Pro). Concernant la partie GPU elle sera composée de 12 SIMDs, 768 ALUs (Processeurs de Flux) cadencés à 750 Mhz, 48 TMUs et 16 ROPs. La partie mémoire reposera sur 1 Go de mémoire GDDR5 à 4.0 Gb/s le tous sur un bus 128-Bit permettant une bande passante de 64 GB/s. Le TDP sera de 50 Watts.

  • Le deuxième GPU reposant sur Lambok sera la HD 7670 avec Lombok XT, qui viendra remplacer l’actuelle HD 6670 (Turks XT). La partie GPU sera composée de 12 SIMDs, 768 ALUs (Processeurs de Flux) cadencés à 900 Mhz, 48 TMUs et 16 ROPs. La partie mémoire reposera sur 1 Go de mémoire GDDR5 à 5.0 Gb/s le tous sur un bus 128-Bit permettant une bande passante de 80 GB/s. Le TDP sera de 60 Watts.

Vient ensuite le milieu de gamme représentée par Thames, qui sera décliné en trois modèles :


  • La version la moins performante de Thames sera la HD 7790, qui reposera sur Thames LE, en venant remplacer la HD 6790 (Barts LE). Malheureusement aucune information technique concernant ce modèle n’a été dévoilé.

  • Le modèle intermédiaire sera la HD 7850. Elle reposera sur Thames Pro et elle viendra remplacer la HD 6850 (Barts Pro).  La partie GPU sera composée de 22 SIMDs, 1408 ALUs (Processeurs de Flux) cadencés à 850 Mhz, 88 TMUs et 32 ROPs. La partie mémoire reposera sur 2 Go de mémoire GDDR5 à 5.2 Gb/s le tous sur un bus 256-Bit permettant une bande passante de 166 GB/s. Le TDP sera de 90 Watts.

  • Vient ensuite le modèle HD 7870, qui reposera sur Thames XT. Elle viendra remplacer la HD 6870 (Barts XT). Sa partie GPU sera composée de 24 SIMDs, 1563 ALUs (Processeurs de Flux) cadencés à 950 Mhz, 96 TMUs et 32 ROPs. La partie mémoire reposera sur 2 Go de mémoire GDDR5 à 5.8 Gb/s le tous sur un bus 256-Bit permettant une bande passante de 186 GB/s. Le TDP sera de 120 Watts.

Enfin vient le haut de gamme représentée par Tahiti, qui sera décliné en deux modèles :

  • La moins puissante sera la HD 7950, qui reposera sur Tahiti Pro et qui viendra remplacer la HD 6950 (Cayman Pro). La partie GPU sera composée de 30 CUs, 1920 ALUs (Processeurs de Flux) cadencés à 900 Mhz, 120 TMUs et 64 ROPs. La partie mémoire reposera sur 2 Go de mémoire XDR2 à 7.2 Gb/s le tous sur un bus 256-Bit permettant une bande passante de 230 GB/s. Le TDP sera de 150 Watts.

  • Puis viendra Tahiti XT avec la HD 7970 venant remplacer l’actuelle HD 6970 (Cayman XT). Sa partie GPU sera composée de 32 CUs, 2048 ALUs (Processeurs de Flux) cadencés à 1000 Mhz, 128 TMUs et 64 ROPs. La partie mémoire reposera sur 2 Go de mémoire XDR2 à 8.0 Gb/s le tous sur un bus 256-Bit permettant une bande passante de 256 GB/s. Le TDP sera de 190 Watts.

Pour les utilisateurs les plus exigeants AMD proposera la HD 7990, nom de code New Zealand, qui sera composé de deux Tahiti XT (HD 7970). Elle viendra remplacer l’actuelle HD 6990. On peut donc imaginer qu’elle sera composée de 4096 Processeurs de Flux est que le TDP ne devrait pas dépasser les 300 Watts.

Si toutes ces informations s’avèrent exactes, les performances devraient connaitre un bon assez important et la consommation à l’air d’être plutôt contenu. On remarquera également que dans les modèles haut de gamme la mémoire de type GDDR5 laissera place à de la mémoire XDR, qui est un dérivé de mémoire Rambus.

Source : wccftech.com

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bon pour les avocats ouais....
ukobach , 21 novembre, 2011
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genial
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retour de la rambus ? un bon presage
...T.O.X.I.C... , 18 septembre, 2011
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