The Diamond Multimedia AMD Radeon HD 5450 PCI Express GDDR3 1GB is a low-profile graphics card with a comprehensive heatsink. The video memory of this model consists of 1GB of DDR3 but consumes less watts of power, which leaves plenty for other components.
It comes with a 650 MHz Base Clock Speed and 9.6 GB/s memory bandwidth. Also, note that this model can be used as a standalone video accelerator because it has an output for DVI, HDMI, and VGA.