The GK104 GPU is the same chip used in the making of the GTX 680 and the dual-chip GTX 690, constructed on the 28nm Kepler architecture.
In the new video board, though, the processor does not have all CUDA cores active, nor as high a clock speed as on the flagship cards.
The fully unlocked GK104 boasts 1,536 CUDA cores, but GTX 670 has only 1,344. Of course, this is still a nice number, but we digress.
Meanwhile, the frequency of the GPU is 915 MHz, although the GPU Boost technology can take it to 980 when the need arises. For the sake of comparison, the GTX 680 features 1,006 MHz / 1,058 MHz speeds.
The product's specifications continue as follows: 2 GB of GDDR5 VRAM clocked at 6.0 GHz, a memory interface of 256 bits, a memory bandwidth of 192.2 GB/s, a texture fill rate of 102.5 billion/s and four video outputs (two dual-link DVI, one HDMI and one DisplayPort).
Furthermore, the Santa Clara, California-based company implemented support for pretty much every technology it has: 3D Vision, 3D Vision Surround, CUDA, PhysX, 3-way SLI, etc.
Add to that OpenGL 4.2, PCI Express 3.0, multi-monitor capability (up to four), internal audio input for HDMI and HDCP certification, and PC Gamers don't really have any reason not to at least cast a glance in the direction of the GTX 670 when browsing for a new graphics beast.
All the above fit on a 9.5-inch PCB (241 mm) and the price of the 28nm Kepler-powered newcomer is $399, which will doubtlessly turn into 399 Euro on the old continent, or 379 if we're lucky. Stay tuned to see what video controllers NVIDIA's OEMs have prepared.
Softpedia: http://news.softpedia.com/news/NVIDIA-Launches-GeForce-GTX-670-Graphics-Card-268833.shtml
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