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NVIDIA GeForce GTX 680 Specifications Revealed

NVIDIA's much anticipated GK104 release is finally impending and we have specifications and details for the first SKU – GeForce GTX 680.

As previous rumours suggested, GTX 680 will feature 1536 SP and 256-bit memory. However, contrary to rumours, NVIDIA has retained the shader hotclock, although the Kepler shaders could be significantly different from its Fermi counterparts which makes it difficult to predict performance. The core will be clocked at 705 MHz and the shaders at 1411 MHz, retaining the 2x shader hotclock from Fermi. GK104 significantly improves upon GF110/GF114's memory controller, setting a new record for reference memory clock at 6 GHz. This equates to a memory bandwidth of 192 GB/s – exactly the same as GTX 580 despite the narrower memory bus.

As we have witnessed from previously leaked PCB pictures, the GTX 680 will sport 4 display outputs – stacked dual DVI, HDMI and DisplayPort. GK104's die appears to be slightly smaller than Tahiti but significantly larger than Pitcairn. Two SLI connectors will enable upto 3-way SLI. However, the experimental stacked PCI-e power inputs may not make it to the final production graphics cards. GTX 680 will be 10 inches long, which is longer than GTX 560 Ti or HD 7870 but shorter than HD 7950 or GTX 570. The general visual appearance will be reminiscent of GTX 570, albeit more compact with a repositioned fan. The rear end will be similar to HD 5800 or HD 6900, with identical outputs and a blocked exhaust.

NVIDIA will reveal details about GTX 680 in an event on 12th March, with a hard launch rumoured for 23rd March – days after HD 7800's release.

Source: VR-Zone Chinese

VR-Zone is a leading online technology news publication reporting on bleeding edge trends in PC and mobile gadgets, with in-depth reviews and commentaries.

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