GeForce GTX 285
Firstly, the GT200 graphics processor, the most complex and advanced to date, has finally been transferred to 55 nm. The new technological process for the production of microcircuits, carried out at the factory of TSMC, a partner of NVIDIA, has allowed to reduce the crystal area, reduce power consumption and improve the frequency characteristics of the graphics processor. Thanks to this, the developers of the GeForce GTX 285 graphics card managed to slightly increase the clock frequencies while simultaneously reducing the total power consumption from 230 to 180 W. All other parameters of the mentioned chip and other components of the graphics card remained unchanged. And therefore, users were able to buy an even more powerful gaming graphics card at a reduced price. The latter fact is explained not only by the reduction in the cost of the GT200b graphics controller (the smaller its size, the more good processors can be obtained on one silicon wafer), but also by some simplification of the graphics card design. And this is already the second difference between the GeForce GTX 285 and its predecessor.
The unique thing about the GTX 285 is that it actually has no direct competitor. AMD built its Radeon line a little differently, which created a serious price gap between the dual-processor “monster” Radeon HD 4870 X2 and the most powerful single-processor video card, the Radeon HD 4890. Of course, AMD made an attempt to fill it with the Radeon HD 4850 X2 model. But for some reason, this video card fell into the category of scarce ones, since only one company, Sapphire, received the right to produce it.
| Name | GeForce GTX 285 |
| Core | GT200b |
| Process technology (µm) | 0.055 |
| Transistors (millions) | 1400 |
| Core frequency | 648 |
| Memory operating frequency (DDR) | 1242 (2484) |
| Bus and memory type | GDDR3 512-bit |
| Bandwidth (Gb/s) | 158.976 |
| Unified shader units | 240 |
| Unified shader unit frequency | 1476 |
| TMU on conveyor | 80 |
| ROP | 32 |
| Shader Model | 4.0 |
| Fill Rate (Mpix/s) | 20736 |
| Fill Rate (Mtex/s) | 51840 |
| DirectX | 10.0 |
| Memory Capacity | 1024 |
| Interface | PCIe 2.0 |
The GeForce GTX 285 graphics card was the most powerful single-processor 3D accelerator of that day. The use of a new technological process with 55 nm standards for the production of the graphics processor allowed to significantly improve the energy efficiency of the graphics card, and at the same time reduce its cost.