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4650/4670: Visual Quality

ADVERTORIAL: ATI Radeon HD 4650/70: Top Value for Bottom Dollar
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As we mentioned earlier, increasingly often users are less concerned with whether a PC can play this or that piece of multimedia and more concerned with what else the PC can do while playing the media. Some of this comes down to guesswork and basic arithmetic. For example, if playing a Blu-ray disc consumes 90% of available CPU resources, you’re stuck. The system is going to play that, only that, and it may not even play the disc well. However, if playing that Blu-ray only consumes 35% of available CPU resources, then you have the ability to tackle another heavy-duty task in the background, such as transcoding videos for your portable player or recording shows from a TV tuner. As a general rule, you don’t want to run a CPU above 70% to 80% of its capacity as fleeting utilization spikes can cause application hiccups, poor system response, or, less often, outright crashes.

For years now, graphics vendors have seen the CPU grow ever more beleaguered and have sought to add value to their products by offloading as much processing load as possible from the CPU to the GPU. This has actually been going on for well over a decade, arguably since the days when MPEG-2 decoding first migrated to dedicated circuitry in the graphics processor. More recently, we see today’s primary high-def codecs (MPEG-2, WMV9, VC-1, and H.264) getting their own dedicated acceleration hardware within the GPU. Before this happened, playback of 1080p video on PCs was nearly impossible as even the best contemporary CPUs simply lacked the horsepower to tackle such a massive task at real-time speeds.

This isn’t to say that HD decoding is the only job GPUs help with. Even before HD came into vogue, plenty of users were using PCs for DVD and streaming video playback. Unfortunately for most consumers, PC-based video from the first half of this decade tended to look pretty shoddy. A lot of the signal processing techniques used in home DVD players had yet to appear in PC playback hardware. So it happened that ATI and others set about implementing and refining features such as adaptive de-interlacing, sharpening, color enhancement, noise reduction, and other post-processing improvements. Collectively, ATI called its approach to these improvements Avivo. In an era before 5 Mb/sec broadband and HD media, such improvements made the difference between night and day in visual quality.

Does that mean that today Avivo is no longer needed? No, quite the opposite. People still need better-looking streaming video and disc playback, and most systems older than three or four years (more recent for integrated graphics-based PCs) are likely to lack technology like Avivo to perform such image enhancements. The moral of the story is that if you watch video on your PC, you’ll enjoy the content a lot more with post-processing technology like Avivo in play.

More recently, ATI updated its approach to Avivo HD, which added HDMI support so that PCs could output straight to HDMI-equipped TVs and amplifiers. (ATI was the first to enable digital video and audio output over a single PC-based HDMI port.) The Unified Video Decoder (UVD) engine sits alongside Avivo HD in modern AMD GPUs, with the latest UVD 2.x updates in the HD 4000 series taking over nearly all of the decoding work for H.264, AVC, and VC-1 video streams. AMD’s implementation also tackles dual-stream decoding so users can enjoy picture-in-picture and full BD-Live support.

           In short, if you want to have all of the latest video playback acceleration and enhancement capabilities on your PC, the HD 4650 or 4670 is a very affordable way to do it. The quality difference compared to older hardware will be stunning.

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Top Comments
  • 19 Hide
    wesleywatson , October 11, 2009 7:03 PM
    I would keep reading, but a giant fucking ad keeps covering half the pages.
Other Comments
  • 19 Hide
    wesleywatson , October 11, 2009 7:03 PM
    I would keep reading, but a giant fucking ad keeps covering half the pages.
  • 6 Hide
    mlcloud , October 11, 2009 7:19 PM
    At least give us the links to some of the 4650/70 benchmarks... Other than that, great read, great recommendations, looking to upgrade my pentium 4, 1.4ghz 256mb (ddr). Was looking at using the HD4200 on the 785g series from AMD, but if I can make a true gaming computer out of it ... hm... tempting.
  • 2 Hide
    Anonymous , October 11, 2009 9:30 PM
    I'm waiting for a HIS HD4670 1GB to arrive soon. It even has HDMI output.

    Got it really cheap from newegg. It'll do fine with my Intel E5200. Nothing like a super gaming machine, but hope to play TF2 and L4D with good gfx. That's all i play atm.
  • 3 Hide
    tortnotes , October 12, 2009 12:50 AM
    Advertorial? How much did AMD pay for this?
    Not that it's not good content, but come on. Doesn't Tom's make enough from normal ads?
  • 0 Hide
    duckmanx88 , October 12, 2009 1:00 AM
    mlcloud Was looking at using the HD4200 on the 785g series from AMD, but if I can make a true gaming computer out of it ... hm... tempting.


    on their gaming charts the 4670 is listed. plays FEAR 2 pretty well. i assume it can than handle all Source games as well but at lower resolutions, medium settings, no AA, the usual.
  • 0 Hide
    Anonymous , October 12, 2009 2:30 AM
    Assuming I'm assembling a new system and the HD 4650/4670 is the most cost-effective graphics card... what then is the most cost-effective processor to pair with it?
  • 0 Hide
    Anonymous , October 12, 2009 2:52 AM
    Good thing to see ATI marketing their 4650/4670.

    I was hoping to see more of their mid-range cards.
  • 0 Hide
    WINTERLORD , October 12, 2009 3:51 AM
    great article these are some nice cards for the price, i wonder though if you got 2 of them and tried to put them in a crossfire config. since they dont require a power source, other then the pci-e slot, would 2 of them cause any problems drawing all that current through the motherboard? kinda wondering if there would be any impact there.
  • -1 Hide
    Anonymous , October 12, 2009 9:18 AM
    Ati making great job. In my office there was need to meka PC with 6 individual monitors. Solution - mainboard asus p5q-e + 3 ati 3650 video cards with vga+DVI outputs. Great working very cheep in cost. Tried to meke the same with nvidia 8400gt - no result 4 monitors individual maximum. Ati - rulezzz
  • 2 Hide
    lien , October 12, 2009 1:50 PM
    +

    Installed an Sapphire 4650 AGP on a backup system in August.
    Overclocked it & almost pissed myself on how good the image quality was on that system.
    Article confirms....

    value based articles are refreshing
  • 0 Hide
    Onus , October 12, 2009 3:02 PM
    I absolutely agree. The Ferrari / Focus analogy is particularly apt. If I didn't already have a 4850 in my primary system, another 4670 like the one in my secondary would have been fine (I don't play Crysis).
    As far as running two of them on mobo power, some mobos have an auxiliary molex power connector on them to help with this.
  • 0 Hide
    WINTERLORD , October 12, 2009 3:52 PM
    anyone see the charts for the 4650? i went to the link (http://www.tomshardware.com/charts/graphics-cards,1.html and looked everywhere, like 3 times over and even used the find on page , feautre in internet explorer and could not find it anywhere.
  • 0 Hide
    cinergy , October 12, 2009 5:33 PM
    Nice article. Here is a benchie against nvidia's latest: http://www.pcper.com/article.php?aid=794&type=expert&pid=3
  • 0 Hide
    WINTERLORD , October 12, 2009 6:12 PM
    they have a great article that is up today on toms homepage. just noticed. and it has the 4650 and 4670. thanks
    here is the link. but im sure everyone seen it alrdy on homepage since its new :) 
    http://www.tomshardware.com/reviews/geforce-gt-220,2445.html
  • 5 Hide
    ryanegeiger , October 12, 2009 7:08 PM
    "Advertorial"... this is a result of the new legistlation requiring all 'bloggers' to disclose whether or not they're paid for their articles.
  • 1 Hide
    Stardude82 , October 12, 2009 8:59 PM
    falknerAssuming I'm assembling a new system and the HD 4650/4670 is the most cost-effective graphics card... what then is the most cost-effective processor to pair with it?

    I guess it depends what you want to use it for really. For watching high-def video, it doesn't matter much since all the processing is done on the GPU. The new dual-core Celerons/Athlons are great for this. For gaming, Toms has a pretty good monthly "Best Gaming CPU for the Money." Though again, it won't matter much since the GPU will be the bottle neck, though the ~$80 E6300 and Athlon II x2 250 are both phenomenal overclockers.


  • 2 Hide
    cangelini , October 13, 2009 7:56 AM
    ryanegeiger"Advertorial"... this is a result of the new legistlation requiring all 'bloggers' to disclose whether or not they're paid for their articles.


    No, this is a result of an editorial department that cares about its readers by drawing a clear line between editorial and advertorial content, and still trying to make the advertorial educational/worth reading.
  • 0 Hide
    Anonymous , October 13, 2009 5:40 PM
    As a HD 4650 GDDR3 user i totally agree with this article.
  • 1 Hide
    Gintok , October 13, 2009 7:32 PM
    Quote:
    This approach also works with Hybrid CrossFireX, which teams a compatible discrete Radeon card (including the 4650 or 4670) with a compatible IGP.


    I'm confused, I thought Hybrid CrossFireX only supported 3 desktop card, the ATI 2400, 3450 and 3470 NOT the 4650 or 4670. Please correct me if I'm wrong.
  • 0 Hide
    Honis , October 14, 2009 7:32 PM
    They need to mark Advert even if they weren't directly paid. Any gift, like letting Tom's keep the video cards, counts in this legislation. Tom's could write an article absolutely crushing a product but still be required to mark it as advert because they get to keep the company's product.
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