In our Radeon HD 7970 review, we discovered that, at this time, there is no difference between using a PCI Express 2.0 or a PCI Express 3.0 connection. Today, only the LGA2011 Core i7 processors (“Sandy Bridge-E”) have a PCI Express 3.0 controller. You can compare the specs of these video cards with other video cards by taking a look at our “ AMD ATI Chips Comparison Table” and “ NVIDIA Chips Comparison Table” tutorials. NVIDIA also offers a 3 GB version of the GeForce GTX 580 (currently around USD 490, down from between USD 530 and USD 590 in December 2011), but we didn’t have one to include in our comparison. With the launch of the GeForce GTX 680, the price of the GeForce GTX 580 dropped from USD 500 to USD 420, and many users are speculating whether or not AMD will drop the price of the Radeon HD 7970. Prices were researched at on the day we published this review, do not include rebates, and are for the video cards with the configurations listed below (i.e., no factory overclocking). In the table below, we compare the main specifications of the video cards included in our review. Because of the new manufacturing process, the maximum power consumed by the video card dropped from 244 W on the GeForce GTX 580 (which uses the 40 nm manufacturing process) to 195 W, while processing power increased. The GeForce GTX 680 is a dynamic overclocking technology that increases the graphic chip’s clock from 1,006 MHz up to 1,058 MHz when more processing power is demanded. We reviewed the plain GeForce GTX 680, which uses the NVIDIA reference clocks.
The “Hydro Copper” model comes with a cold plate for liquid cooling solutions. (All have 2 GB of GDDR5 memory.) The “SC+ w/Backplate” model comes with a plate protecting the solder side of the printed circuit board, a feature not available on the regular model.
The GeForce GTX 680 is the latest and greatest graphics processor from NVIDIA, using a new architecture called “Kepler,” a new manufacturing process (28 nm), a dynamic overclocking technology, and supporting the PCI Express 3.0 specification.ĮVGA offers four different video cards based on the GeForce GTX 680 we summarize the difference between them in the table below.
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