Based on Fermi architecture, the 3rd chip derived from the Fermi family of GPUs is now born. The GeForce GTS 450 series is to be based on a new chip. Initially the Fermi architecture that you have all seen on the GTX 465, 470 and 480 is based on the GF100 chip. Then the upper mid-range and very successful GeForce GTX 460 was based on the GF104, a smaller chip with less transistors (2.1 Billion to be precise), called the GF104.
The GeForce GTS 450 is based on the GF106, this is a less complicated chip to manufacture with smaller transistor count directly relates to better yields, better heat levels, better voltages and thus a better TDP as well. The GF106 has a transistor count of 1.17 billion, based on a 40nm fabrication process.
In the initial release this GF106 GPU will be used solely for one SKU, a GeForce GTX 460 with 768MB of graphics memory and the GeForce GTS 450 that is armed with 1024MB of memory. That memory is quad data-rate, gDDR5 memory that runs over a 128-bit wide bus.
The GeForce GTS 450 comes with 192 shader processors spread out over four Streaming Multi-processor clusters (SM). That translates into a Texture Memory Unit count of 32, and thus 16 ROPs.
The reference core clock frequency of this product is 783 MHz, the shader processors are clocked at a tact frequency of 1566 MHz, and the 128-bit gDDR5 memory has an effective data rate of 3600 MHz.
This package is intended to create a product that replaces the GeForce GTS 250 and will compete with the Radeon HD 5750 series.
The GeForce GTS 450 cards will be fully fledged DirectX 11 class cards with nice tessellation performance and the full DX11 API feature set. Though only a handful of games really show significant DX11 class quality, we really feel that if you are in the market for a new graphics card, DX11 is obviously the path to follow.
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