AGP (Accelerated Graphics Port)It is one of interface from video card standard which providing bandwidth between motherboard chipset to VGA card for 2.1 G/s (for 8x speed)
Core Clock A value of frequency which has had by graphic chips of video card. Generaly, more better the values of frequency it has, the running speed will become faster. And also usually measured with Mega Hertz (MHz) unit.
Direct3DOne of API (Application Programming Interface) function of the Microsoft's DirectX. This API is used to control of 3D graphic rendering.
D-Sub Output port standard which used from video card to the monitor by using 15 pins of its connection
DVI-IOne of the DVI variant which can be passed by both analog and digital signals. And DVI is a connector which is used on the LCD monitor which is very effective to reduce noise in the video when doing conversion from digital to analog and back to digital again.
GPU (Graphics Processor Unit)A kind of processor which is used for video card to processing images.
Memory ClockFrequency value of the memory chips working on a video card that is expressed in units of Mega Hertz (MHz).
PCI ExpressIt usually shortened as PCIe, formerly also known as 3GIO (3rd Generation I/O). The newer video card uses this kind of interface, to increasing bandwidth.
Pixel
A picture element, the smallest element in digital image which can be seen by human eyes. In real, image sensor (two dimensions) is made by series of thousands light-sensitive cells. Each cell is called pixel, for display on monitors or computers, pixels are the dots of light which make an object on the screen. To prove it, open any kind of image with an image editor application, zoom as many as you can then you will see every dots which make an object picture, even every font is made from dots, and even anything on the screen.
RAMDAC (Random Access Memory Digital to Analog Converter)
A chip which is controlling VGA which is ordering color pallete and data convert from memory in the form of data digital to be analog signals on the monitor (for analog monitor)
S-Video Out
It is one of general port which is used at video card to convert display to television.
SmartShader
ATI Radeon technology which can use up to six Texel input per pixel shader program, adding an instruction cell and allows a longer program (22 instructions per program)
SmoothVision
It is a full-scene multisampling anti-aliasing (FSAA) which is more sophisticated. SmoothVision has its ability to be programmed. Basically, SmoothVision mode allows up to 16 different samples and 16 samples per pixel for FSAA.
Video Shader
An effect which is used for visualization uses unit programable shader.
VPU
A Processor which is used on video card to processing images. This term more often used for product from ATi Radeon.
