Im not sure whether sparkle is a reputable manufacturer. But any way which is the better buy.
http://www.scan.co.uk/products/2gb-gigabyte-radeon-r9-270x-oc-28nm-5600mhz-gddr5-gpu-1050mhz-boost-1100mhz-1280-streams-displayport
http://www.amazon.co.uk/Sparkle-SX7602048KHA-Nvidia-GTX760-Graphics/dp/B00H3SY8UA/ref=sr_1_1?ie=UTF8&qid=1394975302&sr=8-1&keywords=sparkle+760
http://www.scan.co.uk/products/2gb-gigabyte-radeon-r9-270x-oc-28nm-5600mhz-gddr5-gpu-1050mhz-boost-1100mhz-1280-streams-displayport
http://www.amazon.co.uk/Sparkle-SX7602048KHA-Nvidia-GTX760-Graphics/dp/B00H3SY8UA/ref=sr_1_1?ie=UTF8&qid=1394975302&sr=8-1&keywords=sparkle+760