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HTPC And Stream

ATI Radeon HD 5450: Eyefinity And HTPCs For Everyone?
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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).

HD Benchmark Totals
(100 possible points)
Graphics ProcessorScore
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.

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Top Comments
  • 23 Hide
    cleeve , February 4, 2010 4:28 AM
    acasela crossfire config with this video card + overclock will make this article much better in a gamers point of view...


    Not really, look at the specs. In CrossFire these cards would cost $100 for a total 160 shader cores. They still wouldn't hold a candle to a single $100 5670 when gaming, which has 400 shader cores all by itself.

    CrossFiring the 5450 would be a total waste.
  • 22 Hide
    skora , February 4, 2010 6:05 AM
    How selfish you all are thinking THG only does gaming cards!!!! When ATI cuts the hardware (shaders/ROPs) to the bone, its not about gaming. Its for the HTPC and multi-monitor office crowd and thats it. It's a niche card and looks to do that admirably.
  • 10 Hide
    Anonymous , February 4, 2010 7:26 AM
    So it's probably worth remembering this card IS NOT aimed at playing games..If you want to play games then this card isn't for you.

    This is aimed purely at media playback and 2D applications.

    I run a number of HTPC's in my home and until this card it has been impossible to get a bitstreamed output over hdmi for bluray playback. This is currently the only card that will do that (that is low power, single slot, and half height)

    For that reason alone this should get a 5* or 10/10 rating. And I'll be buying 5 of them!

    And please try to remember that graphics cards are not all about frame rated when playing crysis.
Other Comments
  • 8 Hide
    popaholic , February 4, 2010 3:54 AM
    For the all the idiots out there, yes it can run Crysis, slightly.

    Whats the point of releasing a new graphics card thats worse than older cards? It runs Dx11 but there's no way it could even run a supported game.

  • -4 Hide
    Anonymous , February 4, 2010 3:54 AM
    The links to the article pages are either missing or directed wrongly. For example, the "Power and Temperature Benchmarks", "Conclusion" pages are missing or directed wrongly.
  • 0 Hide
    cangelini , February 4, 2010 3:56 AM
    serokichimThe links to the article pages are either missing or directed wrongly. For example, the "Power and Temperature Benchmarks", "Conclusion" pages are missing or directed wrongly.


    Try refreshing the page. Should be working correctly now!
  • 0 Hide
    robertking82881 , February 4, 2010 4:06 AM
    well those that are not gameing but want direct x11 can pick this up
  • 23 Hide
    cleeve , February 4, 2010 4:28 AM
    acasela crossfire config with this video card + overclock will make this article much better in a gamers point of view...


    Not really, look at the specs. In CrossFire these cards would cost $100 for a total 160 shader cores. They still wouldn't hold a candle to a single $100 5670 when gaming, which has 400 shader cores all by itself.

    CrossFiring the 5450 would be a total waste.
  • -4 Hide
    masterjaw , February 4, 2010 4:43 AM
    Passively-cooled 5450 in crossfire = fail

    How do you expect it to handle the increase in temps? Even if you got some good airflow inside the case, that won't be sufficient.
  • -6 Hide
    footsoldier , February 4, 2010 5:56 AM
    Kinda failed product, ATI..focus on price drop plssss! But still, ATI rocks
  • 22 Hide
    skora , February 4, 2010 6:05 AM
    How selfish you all are thinking THG only does gaming cards!!!! When ATI cuts the hardware (shaders/ROPs) to the bone, its not about gaming. Its for the HTPC and multi-monitor office crowd and thats it. It's a niche card and looks to do that admirably.
  • 6 Hide
    shubham1401 , February 4, 2010 6:07 AM
    Lol...
    They needed a i7 and 1200W PSU to test this card... :) 

    Useless...Either get a good card or stick with integrated.
  • 7 Hide
    arkadi , February 4, 2010 6:56 AM
    Sound like a solid card for non gaming setups. To bad no AGP support. (My 8 years old HTPC just will not die). "crossfire"?! lol i guess some ppl missing the point of this card.
  • 4 Hide
    micky_lund , February 4, 2010 7:08 AM
    shubham1401Lol...They needed a i7 and 1200W PSU to test this card... Useless...Either get a good card or stick with integrated.


    yeah...its just so all the tests are the same, and aren't being capped by anything...tho they could do it with a 500w :D 
  • 0 Hide
    carlhenry , February 4, 2010 7:12 AM
    i was expecting this to be faster than the 4550 :( 
    now i'll wait a little more to see how the 5500 will fair.
    i hope it will be on par with the 9500gt and will be energy efficient. huhuhu
  • 10 Hide
    Anonymous , February 4, 2010 7:26 AM
    So it's probably worth remembering this card IS NOT aimed at playing games..If you want to play games then this card isn't for you.

    This is aimed purely at media playback and 2D applications.

    I run a number of HTPC's in my home and until this card it has been impossible to get a bitstreamed output over hdmi for bluray playback. This is currently the only card that will do that (that is low power, single slot, and half height)

    For that reason alone this should get a 5* or 10/10 rating. And I'll be buying 5 of them!

    And please try to remember that graphics cards are not all about frame rated when playing crysis.
  • -1 Hide
    killerclick , February 4, 2010 7:56 AM
    If you're on a very tight budget and want to play games, I suggest 4650. Eyefinity? Only if you need 3 monitors. dx11? You'll still be able to play dx11 games even with a dx10 card.
  • -4 Hide
    brisingamen , February 4, 2010 8:22 AM
    well crossfiring two of these bad boys isnt all a bad idea i mean they are silent,

    and slim, so they could fit in a slim htpc case. or a micro pc you could throw in your backpack or hand bag.

    plus you can run eyefinity,

    and the fact it runs on such little power you could almost plug it into your neck and run it.

    and you dont have the crossfire bridge to worry about for crossfire connection,


    im definitly a fan of acasels xfire OC idea. id like to see benches and a review of that infact.
  • -5 Hide
    yose3 , February 4, 2010 8:44 AM
    what the point of this card? remind me again why does it exist?
  • 2 Hide
    stridervm , February 4, 2010 9:01 AM
    It exists for the people who are still playing on a 1024x768 monitor but still want DX11, yes, they exist. =P
  • -1 Hide
    scrumworks , February 4, 2010 9:26 AM
    Yose3what the point of this card? remind me again why does it exist?


    How about cutting manufacturing costs doing the 55->40nm transfer and having the power consumption down.
  • 6 Hide
    JohnnyLucky , February 4, 2010 9:27 AM
    If I understood the article correctly, then it seems this card would be ideal for a quiet home theater pc.
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