SAPPHIRE HD 4830

Powerful graphics card built on a brand new chip ATI Radeon HD 4830thThis chip is manufactured 55 nm process that integrates's 640 stream processors and is stepping on a frequency of 575 MHz.Memory with a capacity of 512 megabytes is made up of fast DDR3 memory modules operating at a frequency of 1800 MHz.The support CrossFireX technology bringing together several graphics cards, thus increasing the overall performance of graphics operations.We also implement technology Aviva HD providing excellent image quality and eliminating the so-called"Ghosting Effects" when playing videos.
And specifications:
Graphic chip: ATI Radeon HD 4830 55 nm technology 640 stream processors
Memory:
512 GB GDDR3
256-bit bus
Cycle rate:
Core:575 MHz
Memory:1800 MHz
RAMDAC:400 MHz
Interface:
PCI Express x16 versions of the 2nd0
Outputs:
2 x DVI-I
1 x TV-Out
Native resolution:
2560 x 1600 points
Supported Standards and Technology:
Microsoft DirectX 10th1
OpenGL 2nd0
Shader Model 4th1
Vertex Model 4th1
Support CrossFireX
Support for HDCP