ATI Radeon HD 4550

Get the HD 4670 instead...

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A few months ago, ATI unveiled its R700 graphics chipset with the top-of-the-range Radeon HD 4870. This was followed by a succession of less powerful cards as it made its way, non-climactically, to the entry-level dregs. It’s not a particularly exciting way to debut new technology (kind of like a reversed 20-to-1 episode), but we suppose it keeps the accountants happy. Thus, following in the footsteps of the almighty Radeon HD 4870, the dependable ATI Radeon HD 4850 and the quietly achieving ATI Radeon HD 4670, comes the Radeon HD 4550: an ultra-budget card aimed at ultra-casual users.

Pros

  • Good performance for the asking price, inbuilt HDMI connector, passively cooled for sound-free operation

Cons

  • Benchmarks were significantly worse than the HD 4670 (which only costs a bit more)

Bottom Line

The HD 4550 is a good, affordable option for high-def movie playback and occasional gaming. However, unless you’re on a shoestring budget, we’d recommend the HD 4670 instead. It offers a vastly superior graphics performance for a slightly higher premium.

Would you buy this?

  • Price

    TBA (AUD)

If the HD 4870 is the Goliath of modern-day graphics cards, the HD 4550 would best be described as the dwarf — albeit a fabulously muscled one. While there is no escaping the fact that this is a low-end ‘value’ card, it is considerably beefier than its price tag would suggest. Provided you don’t expect miracle results from 3-D gaming, it will give you plenty of bang for your [unit of currency. — Ed. ]. It is best suited to owners of cheap PCs looking to upgrade their integrated graphics cards, as well as video enthusiasts who require affordable access to high-definition media. However, the HD 4670 offers a lot more grunt for a slightly higher premium, which makes it an even better deal.

The GPU at the heart of the HD 4550 is based on the same basic architecture as its HD 4670 sibling. What you’re basically getting is a downgraded 55nm RV730 chip, codenamed the RV710. Perhaps the most notable change is to the number of shader processors, which has dropped from a modest 320 to an even more conservative 80. Its core clock speed has also been reduced, from 750MHz to 600Mhz, while its memory clock speed now stands at 1600MHz DDR3 effective (down from 2.0 GHz GDDR3 effective). Another significant change is the 64-bit memory bus, which is half the size of the HD 4670’s 128-bit bus. The card’s onboard memory remains unchanged at 512MB, though it uses DDR3 memory instead of GDDR3.

For the purpose of this review, we tested the ATI reference board which the first batch of 4550s should be identical to. AMD does not supply RRP info to journalists, but you can expect to pay around $130 for most vendor models, which makes it around $20 to $30 cheaper than the HD 4670. (This is supported by the price comparison search engine StaticIce.com.)

In terms of design, the HD 4550 shares similar dimensions to the slimline HD 4670, and requires no power connectors to run. However, unlike the HD 4670, ATI has opted for a passive cooling solution via a large black heat plate. This lends the card an unusual look, with no room for logos or artwork.

The HD 4550 isn’t really aimed at gaming, so its mediocre showing in our benchmarks isn’t too surprising. However, we were mildly shocked by how poorly it performed in comparison to the Radeon HD 4670. When we ran 3DMark 06, the HD 4550 returned a score of 3664. By contrast, the HD 4670 scored 8254 when using the same test bed. In the DX 9 version of the game Lost Planet: Extreme Conditions, the HD 4550 returned an average frame rate of 22.6 frames per second. This was significantly slower than the HD 4670, which managed a far more playable 54.5fps. Our Half-Life 2 benchmark demo was also slower when using the HD 4550: 132.2fps vs. 172.4fps.

Predictably, the trend continued in our DirectX 10 gaming tests. Watching the HD 4550 attempt to run Crysis was a sad and tragic thing: it managed an average frame rate of just 5.2fps. Likewise, the DX10 games Lost Planet: Extreme Conditions and Call of Juarez averaged 6.65fps and 9.8fps respectively. All of these results were significantly slower than the HD 4670, which returned semi-playable frame rates in each game (we were particularly impressed by the Call of Juarez result of 25.5fps). While we weren’t expecting the HD 4550 to compete with its more powerful cousin, the gulf between both cards is quite significant, especially when you consider the small price difference.

On the plus side, the HD 4550’s high-definition capabilities remain unmatched in its price range. Rather spiffily, the card comes with inbuilt DVI, HDMI, and DisplayPort connectors — no adaptor required. AMD’s Unified Video Decoder 2.0 (for reliable high-def video playback) and integrated HD 7.1 Audio controller are also supported by this card. Subsequently, it should make a good choice for HD multimedia enthusiasts, if not for gamers.

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