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.
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. 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 uses a cooler with a 63 mm radial fan, located beside the heatsink. The heatsink uses aluminum fins and a copper base.
The reviewed video card uses eight Hynix H5GQ2H24MFR-R0C GDDR5 chips, each one storing 2 Gbit of data, making the 2 GB of memory available on this video card. Each chip is connected to the GPU through a 32-bit lane, creating the 256-bit datapath that is available. These chips can run up to 6 GHz. On this video card, they are accessed at 6,008 MHz, which is already a tiny bit above their labeled clock rate. Of course, you can always try to push the memory clock above its specs.
The GeForce GTX680 is faster and cheaper than the ATI Radeon HD7970, and it is our current recommendation if you are looking for the latest and greatest video card.
In our tests, the GeForce GTX 680 was up to 29% faster than the Radeon HD 7970. The only exceptions were in Aliens vs. Predator, where the competitor from AMD was between 8% and 12% faster, and in Deus Ex: Human Revolution, where the two cards achieved the same performance at 1920x1200, with the Radeon HD 7970 slightly faster at 2560x1600. Compared to its predecessor, the GeForce GTX 580, the new model, was between 12% and 55% faster
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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. 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 uses a cooler with a 63 mm radial fan, located beside the heatsink. The heatsink uses aluminum fins and a copper base.
The reviewed video card uses eight Hynix H5GQ2H24MFR-R0C GDDR5 chips, each one storing 2 Gbit of data, making the 2 GB of memory available on this video card. Each chip is connected to the GPU through a 32-bit lane, creating the 256-bit datapath that is available. These chips can run up to 6 GHz. On this video card, they are accessed at 6,008 MHz, which is already a tiny bit above their labeled clock rate. Of course, you can always try to push the memory clock above its specs.
The GeForce GTX680 is faster and cheaper than the ATI Radeon HD7970, and it is our current recommendation if you are looking for the latest and greatest video card.
In our tests, the GeForce GTX 680 was up to 29% faster than the Radeon HD 7970. The only exceptions were in Aliens vs. Predator, where the competitor from AMD was between 8% and 12% faster, and in Deus Ex: Human Revolution, where the two cards achieved the same performance at 1920x1200, with the Radeon HD 7970 slightly faster at 2560x1600. Compared to its predecessor, the GeForce GTX 580, the new model, was between 12% and 55% faster
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