| [ Vendredi 19 octobre 2001 ] | par Stéphane Quentin |
 
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| Prix en boutique (hors frais de port) | ||
| Bourse : Ce qu'anticipent les astres jusqu'en 2010 | Amazon.fr | 17.01 € |
Des fonctions qui anticipent
Voici une liste des différentes capacités théoriques de nos 2 protagonistes :
| Radeon | GeForce |
Nom de code | font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>R200 | font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>NV 20 |
mso-fareast-font-family:"Times New Roman";mso-ansi-language:FR;mso-fareast-language: FR;mso-bidi-language:AR-SA'>Finesse de gravure | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>0.15 micron | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>.15 micron |
mso-fareast-font-family:"Times New Roman";mso-ansi-language:FR;mso-fareast-language: FR;mso-bidi-language:AR-SA'>Interface Mémoire | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:DE;mso-fareast-language:FR; mso-bidi-language:AR-SA'>DDR 128-Bits | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:DE;mso-fareast-language:FR; mso-bidi-language:AR-SA'>DDR 128-Bits |
mso-fareast-font-family:"Times New Roman";mso-ansi-language:FR;mso-fareast-language: FR;mso-bidi-language:AR-SA'>Fréquence de la mémoire | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>275 MHz | font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>250 MHz |
font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>Bande passante mémoire | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>8.8 Go/s | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>8 Go/s |
font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>Bande passante mémoire avec HyperZ II | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>11 Go/sec | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>N/A |
| font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>Fréquence du GPU | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>275 MHz | font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>240 MHz |
| font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>Nombre d’unités de rendu | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>4 | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>4 |
| 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>Fill Rate (millions de pixels) | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>1100 Mpixels/sec | font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>960 Mpixels/sec |
font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>Fill Rate maximum avec HyperZ II (millions de pixels) | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>1364 Mpixels/sec | font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>N/A |
| font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>Nombre de textures calculées en 1 passe | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>6 | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>4 |
| font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>Nombre de textures par cycle | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>2 | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>2 |
| 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>Fill Rate (millions de texels) | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>2200 Mtexels/sec | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>1920 Mtexels/sec |
| font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>Fill Rate avec HyperZ II (millions de texels) | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>2728 Mtexels/sec | font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>N/A |
| font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>Puissance géométrique (millions de triangles) | font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>68.75 Mtri/sec | font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>40 Mtri/sec |
| 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:NL;mso-fareast-language:FR; mso-bidi-language:AR-SA'>RAMDAC | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:NL;mso-fareast-language:FR; mso-bidi-language:AR-SA'>400 MHz + 240 MHz | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:NL;mso-fareast-language:FR; mso-bidi-language:AR-SA'>350 MHz |
| 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>TMDS intégrés | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>165 MHz | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>145 MHz |
| font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>Fonctions | ||
| font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>Version DirectX | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>8.1 | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>8.0 |
| 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>Version OpenGL | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>1.2 | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>1.3 |
| 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>Higher Order Surfaces | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>TRUFORM (N-Patches) | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>Non |
| 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>Vertex Shaders programmables | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>1.1 | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>1.1 |
| 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>Version Pixels Shaders programmables | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>1.1, 1.2, 1.3 & 1.4 | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>1.1 |
| font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>Textures 3D | font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>Oui | font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>Oui |
| 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>Anti-Aliasing | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>SMOOTHVISION | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>Quincunx |
| font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>Modes FSAA | font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>Jusqu’à 6X | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>Jusqu’à 4X |
| 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>Hidden Surface Removal | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>Oui | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>Oui |
| 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>Z-Buffer Decompression | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>Oui | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>Oui |
| 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>Fast Z-Buffer Clear | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>Oui | 12.0pt;font-family:Verdana;mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:FR; mso-bidi-language:AR-SA'>Oui |
| font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>Support bi-écrans | font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>HYDRAVISION | font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>Non |
| font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>Décompression iDCT complète | font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>Oui | font-family:Verdana;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Arial;mso-ansi-language:FR;mso-fareast-language:FR;mso-bidi-language:AR-SA'>Non |
Comme on le constate, sur le papier la Radeon 8500 s’impose véritablement comme un monstre de puissance capable de mettre à genoux une Ti 500. Sa puissance théorique est supérieure à une GeForce 3. Toutefois le Radeon ne fonctionne, pour le moment, qu’avec la version 1.2 des drivers OpenGL. Un bon nombre de ses extensions ne sont donc actuellement pas disponibles. Comme nous le verrons plus loin, ses performances ne sont malheureusement pas encore au rendez-vous dans certaines applications OpenGL et Direct3D et ce pour de nombreuses raisons.
Autre remarque, l’architecture du Radeon 8500 est clairement orientée vers l’API Direct3D 8.1. Lors des tests, nous n’avions aucune application qui utilise cette API à part le SDK de Direct3D 8.1. Les applications exploitant les fonctionnalités Direct3D 8.0 sont encore rares et seuls quelques moteurs en exploitent certaines. C’est le cas des jeux Giants, Aquanox ou du test de MadOnion 3D Mark 2001.
En haut, les capacités du 8500 sous D3D 8.1 et en bas celles du GeForce 3 Ti 500. Cependant, il est encore très difficile d’évaluer les performances de la carte ATI avec les outils disponibles. Le seul indice sont les démos technologiques de toutes beauté fournies avec la Radeon par le constructeur canadien. Elles exploitent pleinement les fonctionnalités de la carte et utilisent un moteur 3D dénommée Sushi Engine.
| < | Processeur Radeon 8500 : 60 millions de transistors | Nouvelles fonctions | > |
2 - Des fonctions qui anticipent
3 - Nouvelles fonctions
4 - Bande passante et FSAA
5 - Configuration de test
6 - Tests : Jeu Direct3D 7.0 - Evolva
7 - Tests : Jeu Direct3D 7.0 - Evolva Bump
8 - Tests : Jeu Direct3D 7.0 - Giants
9 - Tests : Jeu Direct3D 7.0 - Unreal Tournament
10 - Tests : Application Direct3D 7.0 - 3DMark 2000
11 - Tests : Application Direct 3D 7.0 - Villagemark
12 - Tests : Application Direct3D 8.0 - 3DMark 2001
13 - Tests : Jeu OpenGL - Quake3
14 - Tests : Jeu OpenGL - Quake3 démo NV15
15 - Tests : Jeu OpenGL - Return to Castle Wolfenstein
16 - Les fonctions supplémentaires : bi-écrans et vidéo
17 - Conclusion : une nouvelle référence ?
