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ATI DVI (M) to Component (RGB) HDTV Adapter for Video Cards - 6140016400G List Price: $21.00 Sale Price: $1.75  |
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Take advantage of your computer's high quality DVI video capabilities with this adapter that allows you to view your DVI source on a component HDTV display. From your computer's DVI, watch DVDs, play games, surf the internet, view streaming video and more on your HD projector, HDTV, or other HD display that uses RGB video... |
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Mygica HDTV Thriller ATSC, QAM, NTSC, FM, HDTV PCI card for Desktop PC - PCI HD TV Tuner Card with Remote - Supports up to 1920 x 1080i Resolution Sale Price: $28.99 |
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X8350A is the ultimate PC TV tuner which supports both digital cable (Clear QAM) and free-to-air HDTV with the built-in dual tuners. You can enjoy the crystal clear HDTV with resolution up to 1920 × 1080i... |
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HIS 5400 Key Advantage: DirectX 11 - Perfect for playing popular games online, the ATI Radeon HD 5450 offers full DirectX 11 support; ATI Stream - Accelerate demanding applications and do more than ever with your PC, Unleash the massive parallel processing power of your GPU to help speed up your PC; Home entertainment experience - give you stunning high definition entertainment from your PC, whether Blu-ray/HD DVD discs or other HD sources... |
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The AmazonBasics TOSLINK Digital Audio Optical Cable helps you connect audio components when clear sound quality is your priority. This digital audio TOSLINK cable can be used to connect your CD and DVD players, digital satellite, and more to your preamplifier, receiver, audio processors, and digital-to-analog converters (DACs)... |
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The AmazonBasics HDMI to DVI Adapter Cable connects your DVI-equipped computer, or any other device with a DVI connection, to your home theater or any other device that utilizes an HDMI connection. You can also use it to connect source devices with an HDMI connection, like Blu-Ray, PlayStation 3, or Xbox 360, to a DVI-equipped monitor or television set... |
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Sapphire Radeon HD 5450 1 GB DDR3 HDMI/DVI-I/VGA PCI-Express Graphics Card 100292DDR3L List Price: $58.99 Sale Price: $34.98 Used From: $32.50 |
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The ATI Radeon HD 5450 graphics processors offer the most features and functionality in their class with complete DirectX 11 support and the world’s most advanced graphics, display features and technologies. |
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Amazon.com Product Description With the Hauppauge 1192 WinTV HVR-1950 External USB HDTV Tuner/Video Recorder, you can turn your PC into a virtual television and personal video recorder, or PVR. By simply plugging this video recorder into one of your computer's USB ports, you can watch, pause and record live HDTV or cable TV directly on your computer... |
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EVGA GeForce 6200 LE 512 MB DDR2 AGP 8X VGA/DVI-I/S-Video Graphics Card, 512-A8-N403-LR List Price: $60.99 Sale Price: $40.48 |
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The features of the 6200 LE 512-A8-N403-LR include the GeForce 6200 LE (300MHz clock) chipset, 512MB of DDR2 memory with a 532MHz clock with an effective rate of 1064MHz, AGP 8X compatibility, Integrated NVIDIA TV encoder, 4... |
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The HDTV Smart Adapter supports HD signals up to 1080p. It connects directly to a standard HDMI cable for easy connectivity to a home theater or monitor. You can connect directly to your MHL-enabled phone to create an HDMI docking station... |
hdtv video card
Buying Guide to Graphics Cards
The graphics card is a vital performance component of your computer, particularly if you play 3D games, or work with graphics and video content. The graphics card sits in an expansion card slot in your PC and it is specifically designed to process image data and output it to your monitor, enabling you to see it. A graphics card works by calculating how images appear, particularly 3D images, and renders them to the screen. 3D images and video images take a lot of processing capacity, and many graphics processors are complex, require fans to cool them and need direct power supply. The graphics card consists of a graphics processor, a memory chip for graphics operations, and a RAMDAC for display output. It may also include video capture, TV output and SLI and other functions. You can find the graphics card that suits you by comparing specification between brands and vendors on Myshopping.com.au
At Myshopping.com.au you can compare a great range of appliances, and assess them according to their specifications, brands, prices and vendors.
Graphics Cards
What are your needs?
The first decision you need to make is whether you need a graphics card for handling 3D images or whether you are simply requiring 2D image rendering. For 2D requirements, you need only a low-cost solution. In many cases, an integrated graphics solution will suffice for 2D applications.
However with 3D graphics, the performance of the graphics card will impact directly on the frame rate and image quality of 3D programs and games. The differences between the low and high-end cards can be substantial, both in cost and performance.
Rendering 3D graphics is like lighting a stage, both the geometry of the shapes in question and the lighting of it need to be taken into account. The geometry of an image calculates the parts of an object that can and can't be seen, the position of the eye and its perspective. The lighting is a calculation of the direction of the light sources, their intensities and the respective shadows that occur. The second part to presenting a 3D image is the rendering of colours and textures to the surfaces of the objects, and modifying them according to light and other factors.
Most modern graphics cards include a small microchip called the Graphics Processing Unit (GPU), which are provide the algorithms and memory to process complex images. They reduce the workload of the main CPU, and provide faster processing. Different graphics cards have different capabilities in terms of processing power. They can render and refresh images up to 60 or more times per second, calculate shadows quickly, create image depth by rendering distant objects at low resolution, modify surface textures fluidly and eliminate pixelation.
What Specifications to Consider
Processor clock speed
This impacts on the rendering capability of the GRU. The clock speed itself is not the critical factor. Rather it is the per-clock performance of the graphics processor, which is indicated by the number of pixels it can process per clock cycle.
Memory size
This is the memory capacity that is used exclusively for graphics operations, and can be as much as 512MB. The more demanding your graphics applications are, the better you will be served with more memory on your graphics card.
16-32M
64M
128M
256M
512M
640M and more
Memory bandwidth
One thing that can slow down 3D graphics performance is the speed at which the computer delivers information to the graphics processor. A higher bandwidth means a faster data transfer, resulting in faster rendering speeds.
Shader model
DirectX Shader Models allows developers control over the appearance of an image as it is rendered on screen, introducing visual effects like multi-layered shadows, reflection and fog.
Fill rate
This is the speed at an image can be rendered or "painted". This rate is specified in texels per second, the number of 3D pixels that can be painted per second. A texel is a pixel with depth (3D). The fill rate comes from the combined performance of the clock speed of the processor and the number of pixels it can process per clock cycle, and will tell you how quickly an image can be fully rendered on screen.
Vertices/triangles
Graphics chips don't work on curves, rather they process flat surfaces. A curve is created by multiple flat planes arranged to look like a curve. 3D objects are created with multiple triangular surfaces, sometimes hundreds or even thousands, tessellated to represent the curves and angles of the real world. 3D artists are concerned with the number of polygons required to form a shape. There are two different types of specification: vertices per second (I.e., angles the triangles), and triangles per second. To compare one measure with the other, you have to take into account the fact that adjacent triangles share vertices.
Anti-aliasing
A technique used to smooth images by reducing the jagged stepping effect caused by diagonal lines and square pixels. Different levels of anti-aliasing have different effects on performance.
RAMDAC
The Random Access Memory Digital to Analogue Converter takes the image data and converts it to a format that your screen can use. A faster RAMDAC means that the graphics card can support higher output resolutions. Some cards have multiple RAMDACs allowing that card to support multiple displays.
TV-out
Some graphics cards provide the option to connect a television via either a composite (RCA) or S-Video connector. TV Out
S-video Out
S-video In and S-video Out (VIVO)
YPbPr Connection for HDTV
DVI
Some graphics cards include a connector for DVI monitors, handy because a lot of LCD screens support DVI. DVI offers better image quality than the standard VGA connector.
Dual-head
Dual-head is a term used when two monitors are used side by side, stretching your desktop across both.
SLI (Scalable Link Interface.)
With SLI you can couple two graphics cards in your computer, enabling each card to take half the rendering thereby doubling the performance.
When considering your graphics card, it pays to think about how much you need your computer to process your graphics output. Using a high end graphics card with a high pixels per clock rating, large memory, fast processor and other features means that you can run the latest games efficiently, or work in intensive graphics development.
Different Models
While there are many vendors of graphics cards, there are actually only two major manufacturers of chips for graphics cards. Nearly every graphics card on the market features a chip manufactured by either ATI or Nvidia. Cards using the same graphics chip will perform roughly the same as each other. However, even though they use the same chip, some feature slightly higher clock speeds, as well as manufacturer guaranteed overclocking-an even higher clock speed than that specified. Other factors that will influence your decision should include the amount of memory a card has (128MB, 256MB, 512MB) and its additional features, such as TV-Out and dual-screen support.
Use the search facilities at Myshopping.com.au to compare the features, prices and vendors of graphics cards.
About the Author
Andrew Gates is a writer for comparison online shopping service MyShopping.com.au . MyShopping.com.au helps you compare video cards and buy online from top-rated online stores. You can also read graphics cards reviews and specifications.