Radeon HD 5450, code-named Cedar Pro, will be the most affordable graphics card belonging to the HD 5000 series. This is also the first on AMD’s latest wave of graphics products to do away with GDDR5 memory, replacing it with older GDDR3. Naturally, the Radeon HD 5450 is not designed exclusively for 3D gaming and certain versions will support advanced features such as Eyefinity. (techspot.com)
Radeon is the graphics card i'm currenly using right now, though it's just a low-level graphics card, i must say if HD 5450 is the best in its class.
Power Consumption: 19 Watts
Memory Bandwidth: 12800 MB/sec
Texel Rate: 5200 Mtexels/sec
Pixel Rate: 2600 Mpixels/sec
Here are some games i've tested on HD 5450:
Super Street Fighter IV AE on high settings
Dead Space 3 on high settings
DMC on high settings
GTA IV on medium settings
Assassin's Creed 3 on medium settings
Dirt 3 on high settings
Crysis on medium settings
Far cry 3 on low settings
(Note that i have to lower shadow and anti aliasing settings to most games in order to get optimal framerate)
Avoid HD 5450 if you want to build a gaming computer, but if you are looking for a cheap graphics card with a good performance, then HD 5450 is the right choice for you.