Dutch add-in board maker Club 3D has joined the Radeon HD 7800 party too by announcing not two but four cards powered by the Pitcairn 28 nm GPU. Two of those cards are based around AMD's reference model while the other two come equipped with a custom fansink utilizing the CoolStream High Performance Cooling Technology. According to Club 3D its CoolStream solution "features high performance heatpipes that keeps the components cool and outperforms standard cooling solutions. Transferring heat from the center area to each fin, ensuring enhanced heat dissipation. The result is a dramatic increase of performance for your gaming and multimedia experience." Beside the CoolStream cooler, the two HD 7800 Series cards boast PCI Express 3.0 connectivity, a 256-bit memory interface, 2 GB of GDDR5 VRAM, support for DirectX 11.1, OpenGL 4.2, Eyefinity, CrossFireX, and four display outputs - 1x dual-link DVI, 1x HDMI 1.4a, 2x mini DisplayPort 1.2. The Radeon HD 7870 CoolStream Edition has 1280 Stream Processors (Shader Units) and GPU/memory clocks of 1000/4800 MHz, while the Radeon HD 7850 CoolStream Edition offers 1024 SPs and GPU/memory frequencies of 860/4800 MHz.