Stefan Mileschin

ZOTAC unveiled two new GeForce GTX 680-based graphics card products, the first is a custom-design AMP! Edition 2 GB (part#: ZTGTX680-2GD5AMPR001), and the other is one that sticks to NVIDIA reference design cooler and PCB, but packs double the memory amount (part#: ZTGTX680-4GD5R001). The ZOTAC GTX 680 AMP! Edition uses a swanky-looking triple-slot cooling solution which packs a large aluminum fin stack to which heat is conveyed by four copper heat pipes. The heatsink is ventilated by two 90 mm PWM-controlled fans. The AMP! Edition comes with clock speeds of 1,110 MHz (core base), 1,176 MHz (core boost), and 6008 MHz memory, against NVIDIA reference speeds of 1,006/1,058/6008 MHz.

The GeForce GTX 680 OC 4 GB Edition, on the other hand, retains NVIDIA reference board design augmented by ZOTAC's swanky orange stickers. The card packs double the memory amount (4 GB vs. 2 GB reference), which could come handy with 3D Vision Surround setups. This card sticks to NVIDIA reference clock speeds, with 1,006 MHz (core base), 1,058 MHz (core boost), and 6008 MHz (memory). Both cards feature the same display output layout, of two dual-link DVI, and one each of HDMI and DisplayPort, and 2x 6-pin PCIe power inputs. Both cards include Assassin's Creed 3-game packs. In Japan, both cards are priced the same, at 60,000 JPY (US $750).

http://www.techpowerup.com/165613/ZO...B-Edition.html