HTPC And Stream
HTPC Use: Bitstreaming Encoded Dolby TrueHD and DTS-HD Master Audio
The Radeon HD 5450 is a silent passively-cooled low-power card with a half-height bezel option. All of these attributes are ideal for home theater PC duty. In addition, the card is able to bitstream high-def audio codecs to your compatible receiver over a protected audio path. This is the only $50 card with this ability (if you're not counting Intel's Clarkdale-based processors and H55/57 motherboards), and HTPC enthusiasts will undoubtedly gravitate toward this card as a result.
We did a quick test of the Radeon HD 5450's ability to playback and post-process Blu-ray content, and compared it to the similarly-priced GeForce 210 (in addition to some of the integrated solutions we tested in September of 2009).
| Graphics Processor | Score |
|---|---|
| Radeon HD 5450 | 100 |
| GeForce 210 | 100 |
| Integrated Radeon HD 4200 | 80 |
| Integrated GeForce 9400 | 100 |
| Integrated Intel G45 | 90 |
Essentially, the results are identical between the discrete cards. Both models provide flawless playback quality enhancements. I'd give the Radeon a slight edge in noise reduction and the GeForce a slight advantage when it comes to jaggy reduction, but both solutions are good enough to achieve a perfect 100 point score in the HD HQV benchmark. We did notice a slight delay between the beginning of a video clip and the application of video enhancements in the case of the Radeon, but in a real-world situation this would be completely unnoticeable. When you consider that these cards are similarly priced, and that the Radeon HD 5450 offers vastly superior audio capabilities, an HTPC enthusiast will find the Radeon a much more attractive option.
ATI Stream
This new card supports ATI's Stream technology. But with 1/20 of the shader cores found in the 5870, we don't expect great things from it on this front, and the number of applications that support ATI Stream is still limited at this point. It's difficult to get excited about a feature that hasn't achieved the critical mass to be useful to a majority of customers on a regular basis. Having said that, we do look forward to the proliferation of Adobe's upcoming Flash 10.1 browser plug-in. The video acceleration and enhancements offered by the Radeon HD 5000-series cards will undoubtedly see a lot of use by those who watch YouTube videos, so we did give the beta Flash 10.1 plug-in a try.
We tested using the Muppet's version of Bohemian Rhapsody at 1080p on our slowest test platform, one we use for graphics card power measurements and driven by an Athlon II X2 240e. At this high resolution, the CPU was taxed to about 50% during playback without acceleration. And with Flash acceleration enabled, the Radeon HD 5450 brought CPU usage down to just over 40%. The data AMD supplied suggested we should have seen a much larger difference when the video acceleration was enabled, but we couldn't replicate its results. Keep in mind that CPU utilization during YouTube video playback is typically much lower, as most of the videos are displayed at a correspondingly lower resolution. Dropping playback quality down to 720p resulted in 25% less CPU usage.
DirectX 11
The Radeon HD 5450 supports DirectX 11. But lets face it, this card is far too anemic to be purchased for its gaming prowess. At the risk of spoiling the gaming benchmark results, let's just say this is not the card that will bring DirectX 11 to the masses in a meaningful way. We established this to a degree in our Radeon HD 5670 review, and it's even more the case here.
What a terrible opening paragraph! You slated the 5000 series because it wasn't as big an advancement as the 400 series!
1280x1024 is 5x4
1024x768 is 4x3
1280x960 is 4x3
Sexy heat sink albeit at the cost of losing an expansion slot.
As much as you don't like it, I think this is a fantastic card. Perfect for HTPC users right down to the fact it's half height (I believe I mentioned half height cards when these were first announced). Very attractive price point especially given savings on a sound card. Full marks to AMD for this one.
Hmm..how long before this card is effectively replaced by the next IGP? Got mixed feelings about it, to be honest..it's neither good nor bad, it just exists. Tough call buying this one.
The lower end of the 5000 series is a bit disappointing. I'm not convinced the 5450 is worth it for an HTPC given it's high price (>£50) in the UK - especially since a 785G motherboards is around the same price. I was holding out for the 5570, but it must sit between the 5450 and 5670 in price (~£60?) with performance somwhere between the two. The 4650 at
Ouch, Ouch, poor lil' blighter didn't like those benches much. I'll forgive it if the UK price is loooooooow. I do love the passive cooling!
However, aspect ratio of the screen isn't the pixel ratio, it's physical width and height. For example, if I run 1280x1024 on my monitor then it is 16:9 (and horribly stretched).
Not what the article implied though...
So what we've got here is a DirectX 11 card which doesn't have enough power to play DirectX games... If this was a Nvidia card you would have ripped into it no end, I really think Toms is getting ATI Bias; maybe theres some form of agreement here we don't know about.