NVIDIA launched the GeForce GTX 285 about three months ago, and in our launch article, we found it to be a very strong product. As you are no doubt aware, the GTX 285 is a replacement for the GTX 280. The GT200B GPU at the heart of the GTX 285 is nearly identical to the GTX 280's GT200 GPU. The most significant difference between the two GPUs is that the GT200B is manufactured using a 55nm fabrication process while the GT200 is built on a 65nm process.
We take our NVIDIA GeForce GTX 285 coverage further here as we round up three factory-overclocked cards and pit them against each other. As enthusiasts, we think overclocks are great, but factory provided overclocks covered under warranty are even better. Components that offer more bang for the buck are always welcome in our systems. Recall that the reference NVIDIA GTX 285 clocks speeds are 648 MHz for the core GPU, 1,242 MHz for the GDDR3 memory and 1,476 MHz for the shader clock. The first card in this round-up is the ASUS ENGTX285 TOP, which sports clocks of 670 MHz, 1,300 MHz and 1,550, respectively. Next up, we have the BFG Tech GeForce GTX 285 OCX, the overall fastest card of this bunch, rocking at 702 MHz, 1,332 MHz and 1,584 MHz, respectively. Finally, we have the Zotac GeForce GTX 285 AMP! Edition, which boasts clock speeds of 702 MHz, 1,296 MHz and 1,512 MHz, respectively.
As you can see, this should be an interesting battle to see unfold. We are going to put these cards through their paces in our benchmark suite, and along the way, we'll compare them to a reference GeForce GTX 285, a reference GeForce GTX 295 and a reference Radeon HD 4870 X2. To make it even more intriguing, we're throwing in GTX 285 SLI benchmarks in dual and triple configurations.
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