Tabella comparativa

Con la Radeon 9800 XT, ATi estende la sua linea di prodotti. L'XT ha una frequenza di clock più elevata rispetto al top della gamma ed è inoltre caratterizzata da interessanti novità - tra le quali spicca il bundle comprensivo del gioco Half-Life 2. Quali saranno le prestazioni di questa scheda e come sarà la nuova ASUS Radeon 9800 XT? Tutte le risposte sono in questo articolo.

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Tabella Comparativa

ATI Radeon 9800 PRO 128 ATI Radeon 9800 PRO 256 ATI Radeon 9800 XT NVIDIA GeForceFX 5900 Ultra
Chip Technology 256-bit 256-bit 256-bit 256-bit
Process 0.15 Micron 0.15 Micron 0.15 Micron 0.13 Micron
Transistors ~107 Million (?) ~107 Million (?) ~107 Million (?) 130 Million
Memory Bus 256-bit DDR 256-bit DDR 256-bit DDR/DDR2 256-bit DDR
Memory Bandwidth 21.8 GB/s 22.4 GB/s 23.4 GB/s 27.2 GB/s
Pixel Fillrate 3.04 Gigapixel/s 3.04 Gigapixel/s 3.30 Gigapixel/s - Texelrate (Color+Z): 1800 texel/s
- Z-rate (Z): 3600/s
- Stencilrate: 3600/s
- Texturerate: 3600/s
Max FSAA Mode 6x 6x 6x 4x
Triangle Transform Rate 380 M Triangles/s 380 M Triangles/s 412 M Triangles/s 315 M Triangles/s
AGP Bus 2x/4x/8x 2x/4x/8x 2x/4x/8x 2x/4x/8x
Memory 128MB 256MB 256MB 128/256MB
GPU Clock 380 MHz 380 MHz 412 MHz 450 MHz
Memory Clock 340 MHz (680 DDR) 350 MHz (700 DDR) 365 MHz (730 DDR) 425 MHz (850 DDR)
Memory (on reference board) ? ? Hynix BGA specified for 400MHz Hynix BGA specified for 500MHz
Vertex Shader 4 4 4 FP Array
Pixel Pipelines 8 8 8 4 for color & Z
8 for z
8 for stencil
8 for texture
Texture Units Per Pipe 1 1 1 1
Textures per Texture Unit 8 8 8 16
Vertex S. Version 2 2 2 2.0+
Pixel S. Version 2 2 2 2.0+
DirectX Generation 9 9 9 9.0 (+)
FSAA Modi MultiSampling MultiSampling MultiSampling MultiSampling
Memory Optmizations Hyper Z III+ Hyper Z III+ Hyper Z III+ LMA II Optimized
Color Compression
Optmizations SmartShader 2.1
SmoothVision 2.1
SmartShader 2.1
SmoothVision 2.1
SmartShader 2.1
SmoothVision 2.1
IntelliSample HCT
Display Outputs 2 2 2 2
Chip Internal Ramdacs 2 x 400 MHz 2 x 400 MHz 2 x 400 MHz 2 x 400 MHz
Chip External Ramdacs - - - -
Bits per Color Channel 10 10 10 10
Special TV Encoder On-Chip; FullStream
Adaptive Filtering
F-Buffer
TV Encoder On-Chip; FullStream
Adaptive Filtering
F-Buffer
TV Encoder On-Chip; FullStream
Adaptive Filtering
F-Buffer
TV Encoder On-Chip; Extended Progammability
Adaptive Filtering
UltraShadow
Launch price $399 $499 $499 $499
Street price $300-350 $450-500 $450-500 $400-500