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SAPPHIRE RADEON X1800 GTO REVIEW

"Sapphire Radeon x1800 GTO review also featuring the Sapphire Radeon x800 GTO and Sapphire Radeon x1650 Pro. The Sapphire Radeon x1800 GTO is equipped with 12 Pixel Shader Processors, 8 Vertex Shader Processors, a 256-bit memory interface and driven by the x1800 GTO core."

SAPPHIRE RADEON X1800 GTO

"DISCOVER YOUR PASSION FOR PERFORMANCE! - Engage in the ultimate struggle between reality and fantasy with the Sapphire RADEON X1800 GTO as it breaths life into the inhabitants of far off worlds. Exploding with vibrant colors and highly detailed sinister villains lurking in shadows, today’s game developers are succeeding in dulling the lines between reality and fantasy with tools such as the awe inspiring power of the X1800 GTO. Equipped with 12 Pixel Shader Processors, 8 Vertex Shader Processors, a 256-bit memory interface, 256MB of onboard memory and driven by the industry acclaimed ATI RADEON X1800 GTO core that empowers you to crank up the settings without worry of a hit to the frame rate , the Sapphire X1800 GTO has the key to unlock your imagination and rekindle your passion for performance."

FEATURES

321 million transistors on 90nm fabrication process
Ultra-threaded architecture with fast dynamic branching 12 pixel shader processors
8 vertex shader processors
256-bit 8-channel GDDR3/GDDR4 memory interface
Native PCI Express x16 bus interface
Dynamic Voltage Control

RING BUS MEMORY CONTROLLER

512-bit internal ring bus for memory reads
Programmable intelligent arbitration logic
Fully associative texture, color, and Z/stencil cache designs
Hierarchical Z-buffer with Early Z test
Lossless Z Compression (up to 48:1)
Fast Z-Buffer Clear
Z/stencil cache optimized for real-time shadow rendering
Optimized for performance at high display resolutions, including widescreen HDTV resolutions

ULTRA-THREADED SHADER ENGINE

Microsoft® DirectX® 9.0 Shader Model 3.0 programmable vertex and pixel shaders
Full speed 128-bit floating point processing for all shader operations
Up to 512 simultaneous pixel threads
Dedicated branch execution units for high performance dynamic branching and flow control
Dedicated texture address units for improved efficiency
3Dc+ texture compression
High quality 4:1 compression for normal maps and two-channel data formats
High quality 2:1 compression for luminance maps and single-channel data formats
Multiple Render Target (MRT) support
Render to vertex buffer support
Complete feature set also supported in OpenGL® 2.0

ADVANCED IMAGE QUALITY FEATURES

64-bit floating point HDR rendering supported throughout the pipeline
Includes support for blending and multi-sample anti-aliasing
32-bit integer HDR (10:10:10:2) format supported throughout the pipeline
Includes support for blending and multi-sample anti-aliasing
2x/4x/6x Anti-Aliasing modes
New Adaptive Anti-Aliasing feature with Performance and Quality modes
Temporal Anti-Aliasing mode
Lossless Color Compression (up to 6:1) at all resolutions
2x/4x/8x/16x Anisotropic Filtering modes
Up to 128-tap texture filtering
Adaptive algorithm with Performance and Quality options
High resolution texture support (up to 4k x 4k)

AVIVO VIDEO AND DISPLAY PLATFORM

High performance programmable video processor
De-blocking and noise reduction filtering
Motion compensation, IDCT, DCT and color space conversion
Vector adaptive per-pixel de-interlacing
3:2 pulldown (frame rate conversion)
Seamless integration of pixel shaders with video in real time
HDR tone mapping acceleration
Maps any input format to 10 bit per channel output
Flexible display support
Dual integrated dual-link DVI transmitters
DVI 1.0 compliant / HDMI interoperable and HDCP ready
Dual integrated 10 bit per channel 400 MHz DACs
16 bit per channel floating point HDR and 10 bit per channel DVI output
Complete, independent color controls and video overlays for each display
High quality pre- and post-scaling engines, with underscan support for all outputs
Content-adaptive de-flicker filtering for interlaced displays
Xilleon TV encoder for high quality analog output
YPrPb component output for direct drive of HDTV displays
Spatial/temporal dithering enables 10-bit color quality on 8-bit and 6-bit displays
Fast, glitch-free mode switching
VGA mode support on all outputs
Drive two displays simultaneously with independent resolutions and refresh rates
Compatible with ATI TV/Video encoder products, including Theater 550

CROSSFIRE

Multi-GPU technology
Four modes of operation:
Alternate Frame Rendering (maximum performance)
Supertiling (optimal load-balancing)
Scissor (compatibility)
Super AA 8x/10x/12x/14x (maximum image quality)

SAPPHIRE RADEON X1800 GTO

CHIP CORE
CLOCK		 MEMORY
CLOCK		 MEMORY
TYPE		 MEMORY
INTERFACE		 PIXELS
PER CLOCK		 DIRECTX
SAPPHIRE RADEON X1800 GTO 500 1000 256MB DDR3 256 12 9.0C
SAPPHIRE RADEON X800 GTO 400 980 256MB DDR3 256 12 9.0B
SAPPHIRE RADEON X1650 PRO 600 1400 256MB DDR3 128 12 9.0C
CHIP CORE
CLOCK		 MEMORY
CLOCK		 MEMORY
TYPE		 MEMORY
INTERFACE		 PIXELS
PER CLOCK		 DIRECTX

SAPPHIRE RADEON X1800 GTO REVIEW INDEX

PAGE 1 - SAPPHIRE RADEON X1800 GTO INTRODUCTION
PAGE 2 - ATI TECH DEMO, 3DMARK 2003 AND 3DMARK 2005
PAGE 4 - 3DMARK 2006 AND POWERVR FABLEMARK
PAGE 5 - 1944 - BATTLE OF THE BULGE, DOOM 3 AND FARCRY
PAGE 6 - PREY, QUAKE 4 AND SCOOTER WARZ
PAGE 7 - SCRAPLAND, SERIOUS SAM 2 AND TRIBES VENGEANCE
PAGE 8 - WORLD RACING 2, X3 REUNION AND CONCLUSION

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