The Zotac GTX 660 AMP! Edition comes fashioned in typical Zotac fashion, with a smaller than reference PCB with a high-end cooling system stacked on top. Oh, and a whole lot of factory overclocking done to the reference speeds as well.
Open up the box and you’re greeted with a miniscule version of the GTX 660, with the Zotac card measuring just 7.5-inches long. That’s a 2-inch cut from reference Nvidia design. Stacked on top is their Dual Silencer heatsink.
The copper base plate has two copper heatpipes extending out into the aluminum fins block on the top. The memory chips and VRM also have a metal plate attached on top as they are being cooled directly. Over the entire heatsink are two 70mm fans which are then covered by a black metal plate on top. The only downside is that the Dual Silencer heatsink takes up two and a half slots, which may or may not be an issue depending on your motherboard.
The whole finish and feel of the Zotac GTX 660 AMP! Edition is one of a quality build, with metal components used everywhere. This is also the reason why the Zotac GTX 660 AMP! Edition has such incredibly high overclocked speeds.
While the reference GTX 660 runs at 980MHz (1033MHz boosted) on the core clock and 6008MHz on the memory, Zotac have bumped up the speeds to a massive 1120MHz (1176MHz boosted) on the core clock and 6608MHz on the memory. That’s almost a 14% increase on the core clock and 10% on the memory speeds.