North American retailer NCIX listed two factory-overclocked NVIDIA GeForce GTX 680 graphics card models. NCIX did not list these two for pre-order, but enabled "Add to Wishlist", which probably notifies those with the product in their wishlists of when they are in stock. Both cards are priced at US $578.20 (incl. free shipping to contiguous US states). The clock speeds of MSI's card, which carries the part number " N680GTX-PM2D 2GD5/OC " was revealed to be 1056 MHz (core) with 6 GHz (GDDR5 effective memory); while those of EVGA's card, which carries the part number " 02G-P4-2682-KR ", were not revealed. We know from its clearly-mentioned brand extension "SuperClocked", that it's factory-overclocked.