Even though it is substantially faster than the previous generation Radeon HD 5450, AMD's new HD 6450 can not offer enough performance beyond the most basic gaming at 1024x768. As a gamer the better choice is to save up a bit of money by buying less games and then going for a ~$100 graphics card. Even though AMD markets this card as DirectX 11 compatible, DirectX 11 has no significance for this card. Whether you play DX8 or DX11 at 10 FPS makes no difference, it simply is unplayable.
AMD has equipped their card with support for up to three active displays which means the card gets the EyeFinity stamp on the package. Useful for gaming? No. Three displays means a third of the single monitor FPS - unplayable. Unless you enjoy gaming at the absolute lowest details settings. Three active outputs become much more useful when you look at productivity scenarios. Everybody who has ever worked with a multi-monitor setup knows how much more efficient it is. This capability helps to justify the expense when upgrading from integrated graphics. On the other hand, any PCI-Express graphics card supports two active displays, which makes that feature available at a bargain price on eBay.
As expected, power consumption is very low, which means that we will certainly see completely passive variants by AMD's add-in-board partners. The board we received from AMD had a noisy and whiny fan with a fan profile that doesn't seem to be optimized to the fan's capabilities at all. For a media PC system low noise is crucial in my opinion. AMD has all other features like low-profile, accelerated HD and Blu-ray 3D decode, low power consumption, they just need to get fan noise sorted out, and the price of the card down of course. In terms of overclocking we saw nice potential of around 20% on both GPU and memory which resulted in about 20% actual performance increase. But then again, a slow card + 20% is still slow. Rather save up a bit more and get a more powerful card in the first place.