Introduction
NVIDIA's GeForce GTX 680 was introduced earlier this year and has since taken the enthusiast market by storm. It offers great performance at significantly reduced power consumption. NVIDIA's dynamic overclocking algorithm works well and provides a nice speed boost for the card.
The KFA² GTX 680 LTD OC is a unique GTX 680 design. It uses a sexy white PCB and a large triple-fan thermal solution. Its output configuration is unique too, using three mini-HDMI outputs and one full-size DisplayPort connector. GPU clock has also been increased, while memory remains at the NVIDIA reference clock frequency.
GeForce GTX 680 Market Segment Analysis | | GeForce GTX 670 | Radeon HD 7970 | HD 7970 GHz Ed. | GeForce GTX 680 | KFA² GTX 680 OC | Radeon HD 6990 | GeForce GTX 590 | GeForce GTX 690 |
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| Shader Units | 1344 | 2048 | 2048 | 1536 | 1536 | 2x 1536 | 2x 512 | 2x 1536 |
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| ROPs | 32 | 32 | 32 | 32 | 32 | 2x 32 | 2x 48 | 2x 32 |
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| Graphics Processor | GK104 | Tahiti | Tahiti | GK104 | GK104 | 2x Cayman | 2x GF110 | 2x GK104 |
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| Transistors | 3500M | 4310M | 4310M | 3500M | 3500M | 2x 2640M | 2x 3000M | 2x 3500M |
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| Memory Size | 2048 MB | 3072 MB | 3072 MB | 2048 MB | 2048 MB | 2x 2048 MB | 2x 1536 MB | 2x 2048 MB |
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| Memory Bus Width | 256 bit | 384 bit | 384 bit | 256 bit | 256 bit | 2x 256 bit | 2x 384 bit | 2x 256 bit |
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| Core Clock | 915 MHz+ | 925 MHz | 1050 MHz | 1006 MHz+ | 1110 MHz+ | 830 MHz | 607 MHz | 915 MHz+ |
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| Memory Clock | 1502 MHz | 1375 MHz | 1500 MHz | 1502 MHz | 1502 MHz | 1250 MHz | 855 MHz | 1502 MHz |
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| Price | $400 | $440 | $500 | $500 | $560 | $700 | $750 | $1000 |
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Packaging
Contents
You will receive:
- Graphics card
- Driver CD + Documentation
- 2x PCI-Express power cable
- HDMI to DVI adapter (not pictured)
- Mini-HDMI to HDMI adapter (not pictured)
The Card
The GTX 680 LTD OC uses a white PCB, which looks kinda sexy. Unfortunately, the black cooler, which covers the whole front, doesn't let you see much of the PCB. On the other hand, the black cooler does provide a color contrast; it is up to you to decide whether you like it.
The card requires two slots in your system.
Display connectivity options include one full-size DisplayPort and three mini-HDMI ports. You may use all the outputs at the same time. Please note that using a dual-link DVI display (1920x1200 and up) requires that you buy an active dual-link DisplayPort-to-DVI adapter. A passive adapter or any HDMI adapter will only work up to 1920x1080.
An HDMI sound device is included in the GPU, too. It is HDMI 1.4a compatible which includes HD audio and support for Blu-ray 3D movies. The DisplayPort outputs are version 1.2 which enables the use of hubs and Multi-Stream Transport.
You may combine up to four GTX 680 cards from any vendor in a multi-GPU SLI configuration for higher frame rates or better image quality settings.
Pictured above are the front and back, showing the disassembled board. High-res versions are also available (
front,
back). If you choose to use these images for voltmods, etc., please include a link back to this site or let us post your article.