GeForce 3
|
|
NVIDIA_logo.jpg
NVIDIA Logo
The GeForce 3 was NVIDIA's third-generation GeForce chip. The range included three related chips—the GeForce 3, the GeForce 3 Ti500 and the GeForce 3 Ti200. The professional version of the GeForce 3 was the Quadro DCC.
The first GeForce 3 chips were released in March 2001, three months after Nvidia bought out the near-defunct 3dfx. It differed from the GeForce 2 in three main areas—the first was the addition of vertex and pixel shaders—specialised units (required under the DirectX 8.0 specification) designed to execute small custom transform and lighting and per-pixel programs, greatly increasing the card's flexibility. The second was Lightspeed Memory Architecture (LMA), which was designed to exclude overdrawn (objects obscured from view) objects from processing, and also managed the memory bus better than in the GeForce 2 chips. The third was the changing of anti-aliasing from super-sampling to multi-sampling, which was more efficient.
In terms of performance, it sometimes lost to the GeForce2 Ultra (which was clocked higher - 250 Core/460 Memory vs 200 Core/460 Memory on GeForce 3), but largely outperformed the GeForce 2, Radeon and Voodoo 5 cards (it probably would have outperformed the Voodoo 5 6000, but this is moot since the V5 6000 was never released), especially when anti-aliasing was enabled.
The second revisions, the GeForce 3 Ti500 and Ti200 were released in October 2001, at around the same time as ATI's Radeon 8500. The Ti500 had higher core and memory clocks (250 Core/500 Memory), and was designed to outperform the Radeon 8500 (which it did). The Ti200 was a cheaper chip, designed to fill a niche occupied by the lower-priced Radeon 8500LE (some say that the Ti500's yields were unexpectedly poor, and the Ti200 was a way of making up the cost of making the chips, though this has never been confirmed) and clocked lower than the GeForce 3 (175 Core/400 Memory). The Ti200 proved popular with enthusiasts, as it could be run at GeForce 3 speeds (and Ti500 speeds in some cases).
The GeForce 3 enjoyed undisputed performance supremacy throughout its lifetime. Unlike most Nvidia graphics products, the GeForce 3 was always aimed at the high-end and upper-midrange gaming performance market, and at no time was there a cheap, entry-level version of it—nor was there any need for one, as the numerous GeForce 2 variants were well placed to serve in the mass-market role. Even the Ti200 (which was released relatively late in the chip's life) was priced squarely at the upper end of the mid-range, and had performance to match.
External links
- NVIDIA: GeForce3 - The Infinite Effects GPU (http://www.nvidia.com/page/geforce3.html)
- Anandtech: NVIDIA GeForce3 (http://anandtech.com/video/showdoc.html?i=1442)
- Anandtech: NVIDIA's Fall Product Line: GeForce3 Titanium (http://anandtech.com/video/showdoc.html?i=1539)