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SAPPHIRE RADEON HD 4770
"Sapphire Radeon HD 4770 review which also features the Sapphire Radeon HD 3870. The Sapphire Radeon HD 4770 has 4% lower clock speed, 30% higher memory speed and an extra 320 Pixel Shaders compared to the Sapphire Radeon HD 3870. The Sapphire Radeon HD 4770 does have a disadvantage with the 128 Bit memory interface due to the Sapphire Radeon HD 3870 having a 256 Bit interface. How will this effect performance?"
"The new Sapphire Radeon HD 4770 is the first card in its class to use GDDR5 memory and is based on the first ever GPU built in 40nm process technology. It uses the powerful graphics architectures from the ATI division of AMD, incorporating multi-purpose stream processing units and improved memory management architecture."
ADVANCED MEMORY
"GDDR5 provides twice the data per pin of GDDR3 memory at the same clock speeds."
ENHANCED ANTI-ALIASING
"High performance anisotropic filtering and 24x custom filter anti-aliasing (CFAA) smooth jagged edges and create true-to-life graphics, for everything from grass to facial features."
MICROSOFT DIRECTX 10.1
"Play today while preparing for tomorrow with state-of-the-art DirectX 10.1 graphics capabilities."
ATI CROSSFIREX™ TECHNOLOGY
"ATI CrossFireX™ technology with up to quad GPU support offers superior scalability so your system is ready to level up when you are."
PCI EXPRESS 2.0
"Support for PCI Express 2.0 will prepare you for bandwidth-hungry games and 3D applications."
POWER TO SPARE
"This GPU has the brute processing power needed for physics, artificial intelligence, stream computing and ray tracing calculations."
UNIFIED VIDEO DECODER 2
"Unified Video Decoder 2 frees up your CPU for other tasks so you get The Ultimate Visual Experience™ for even the most processing-intensive content, including VC-1, H.264 and now MPEG-2. Also, take full advantage of Blu-ray functionality with dual-stream, picture in picture (PIP) capabilities."
ACCELERATED VIDEO TRANSCODING
"With ATI Stream technology, owners of ATI Radeon™ HD 4770 GPUs can help accelerate the conversion of standard and HD video into multiple formats for use on differing consumer electronics devices. The ATI Video Converter, designed to enable GPU transcoding of HD video streams, is currently available."
ENHANCED DVD
"Watch standard DVD movies in near high-definition quality with DVD upscaling. The GPU uses post processing algorithms to enhance standard and low resolution videos and movies on your HD display."
DYNAMIC CONTRAST
"Dynamic Contrast automatically adjusts the contrast and brightness during scenes to consistently deliver a crisp, vibrant picture."
HDMI
"Enjoy the latest audio technologies using HDMI with 7.1 digital surround sound support. Also, xvYCC support allows the user to enjoy a wider range of color when connected to a capable HDTV."
DYNAMIC POWER MANAGEMENT
"Sapphire Radeon HD 4770 GPU delivers high performance when needed and conserves power when the demand on the graphics processor is low."
SAPPHIRE RADEON HD 4770 SPECIFICATIONS
DirectX® 10.1
24x custom filter anti-aliasing (CFAA) and high performance anisotropic filtering
Dual mode ATI CrossFireX™ multi-GPU support for highly scalable performance
PCI Express® 2.0 support
Dynamic geometry acceleration
Game physics processing capability
ATI Avivo™HD video and display technology
Dynamic power management with ATI PowerPlay™ technology
ATI Stream technology
I/O Output: Dual DL-DVI-I+HDTV
Core Clock: 750 MHz
PCI Express 2.0 x16 bus interface
Memory Clock: 800 MHz, 3.2Gbps
512MB /128bit GDDR5 memory interface
Dual Slot Active Cooler
HDMI compliant via dongle
7.1 Audio Channel Support
Microsoft® DirectX® 10.1 support
Shader Model 4.1 support
| VIDEO CARD | GPU | CORE CLOCK |
MEMORY CLOCK |
MEMORY TYPE |
MEMORY INTERFACE |
PIXEL SHADER |
DIRECTX |
| SAPPHIRE RADEON HD 4770 | RV740 | 750 | 3200 | 512MB GDDR5 | 128 | 640 | 10.1 |
| SAPPHIRE RADEON HD 3870 | RV670 | 775 | 2250 | 512MB GDDR4 | 256 | 320 | 10.1 |
| VIDEO CARD | GPU | CORE CLOCK |
MEMORY CLOCK |
MEMORY TYPE |
MEMORY INTERFACE |
PIXELS SHADER |
DIRECTX |
SAPPHIRE RADEON HD 4770
| PAGE 1 - SAPPHIRE RADEON HD 4770 INTRODUCTION |
| PAGE 2 - 3DMARK 2006, 3DMARK VANTAGE AND LEFT FOR DEAD |
| PAGE 3 - RACE DRIVER GRID, STALKER CLEAR SKY AND FINAL RESULT |
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