NVIDIA has set up these cards to have different capabilities. This means the 7th series card are specifically designed for videos, photos, and internet usage. The 8th series supports Microsoft Direct X10, while the 9th series is manufactured for intense game players, and HD video viewing and editing.
When GeForce was first introduced in 1999 with the 256, it originally contained SDRAM memory, which was soon updated to DDR memory. The 256 is known as the first graphic card that had hardware transform, shading, and lighting. These were improved including performance, memory controllers, and increased clock speed with the following generations of GeForce such as 2, 3, and 4. Future cards were enhanced with high dynamic range imaging, Scalable Link Interface, Pure Video capabilities for GeForce 6 and transparency super sampling and multi-sampling anti-aliasing for the 7th series.
The 9th series has the most features offered on a graphic sound card. Starting with anti-aliasing, Scalable Link Interface, angle independent anisotropic filtering, 128 Bit Open EXR HDR, Pure video 2 with VP2 BSP Engine, AES128 Engine, and depending on the model may support 3-way or quad Scalable Link Interface.
These features and their names may be foreign to you, let me define a couple of them to help you understand a little more. The Pure Video HD feature involves a video processing core and a set of drivers. These components provide excellent HD video quality with minimal power usage. The Scalable Link Interface or SLI, allows users to install several combinations of GeForce cards into a single system. This increases performance. Today manufactures have produced computers that already have the SLI installed into the motherboard. The users can then upgrade the system by adding more cards. It seems there is no end for improvements to the gaming aspects of technology.
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