AMD launched the Radeon HD 7950 graphics card, its second high-end product based on its new Graphics CoreNext architecture. Based on the same 28 nm "Tahiti" silicon as the HD 7970, the new SKU packs all its features, while being a tone-down in terms of specifications. To begin with, it features 1792 stream processors brought about by enabling 28 out of 32 of the GCN compute units on Tahiti. It features 112 TMUs, 32 ROPs, and a 384-bit wide GDDR5 memory interface, holding 3 GB of memory. Its reference clock speeds include 800 MHz core, and 1250 MHz (5.00 GHz GDDR5 effective). Due to reduced power draw, the card requires two 6-pin power inputs, instead of 6+8-pin found on the HD 7970. AIB partners are free to provide custom-design and factory-overclocked models at speeds of up to 900 MHz core with 5.00 GHz memory. Models with AMD reference clock speeds should be typically priced at US $449, with factory-overclocked ones about $15-20 higher. The cards should be available in the markets right away.