Acer Aspire One 722 Brazos Available In Europe

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Zotac ZBOX: Brazos Goes HTPC

The ultimate goal of any HTPC is to handle any media content you might desire, all while consuming very little power and generating no noise. Package all of that in an attractive case that can fit in with your other home theater equipment and you’ve got a winning HTPC solution. Previous attempts have used NVIDIA’s ION platform (Atom + GeForce GPU), which met the low-power requirement but often failed at decoding certain video streams, and the Atom CPU was so slow that the UI interactions frequently felt sluggish. Other solutions have used higher performance CPUs, but such designs use more power, creating unwanted noise from the cooling fans, and there’s still the issue of media support.

Now, Zotac hopes to satisfy the needs of the low-power crowd while providing enough performance and decoding prowess to please A/V aficionados who want 24FPS content to work properly. To do this, they’ve turned to AMD’s Brazos platform, sporting Atom-like power with roughly twice the CPU performance and integrated graphics that are faster than ION and we might just have a winner. Zotac also includes a Blu-ray drive, for those who prefer disc content. Can the new ZBOX AD03BR-PLUS-U finally supplant the higher performance CPUs with discrete GPUs that so many HTPC users end up using in order to handle all of their video decoding needs? Let’s find out.

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The Brazos Update: AMD's E-450

At Computex there are a few systems floating around with an updated version of AMD's Brazos platform. The E-350 we reviewed not too long ago featured two Bobcat cores running at 1.6GHz alongside an 80 SP GPU running at 400MHz. Later this year AMD will refresh the platform with an E-450. You'll still get the same 2/80 core configuration, but clock speeds and memory support will be slightly different.

The E-450 runs at 1.65GHz, a mild increase over the E-350. Remember that AMD used a very GPU-like approach to the design of Bobcat. The chip was very easy to lay out and manufacture, but it doesn't have the frequency headroom of a traditional AMD CPU. Instead AMD will have to rely on process shrinks to really bring about larger increases in clock speed. AMD will also add DDR3-1600 support with the E-450, a mild spec bump over the 1333MHz support we get today.

While the GPU doesn't get any more execution power it will both operate at a higher base frequency and apparently support some form of graphics turbo. Manufacturers at the show tell us that the CPU side won't be able to turbo up. The E-450 is still a few months away from release, we'll see AMD's Llano followed by Bulldozer before Brazos gets this mid-cycle update.]]>

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Computex 2011: MSI's Brazos, Cedar Trail and Tegra 2 Tablets

I met with MSI yesterday, a company that has been going through a bit of an  identity crisis as of late. ASUS is the only motherboard manufacturer that really made the transition from a component vendor to something more than that. MSI is trying its best to go back to its roots and develop a strategy that will work for it in the long run.

Tablets are of course a big deal these days and MSI had a number of tablets in its Windpad line on display.

 First off we have the Windpad 120W, a Cedar Trail based tablet (32nm Atom). Unfortunately, although Intel promised fanless designs for Cedar Trail it looks like the Windpad 120W will use a small, slow spinning fan to help keep it cool. The 10-inch tablet will have WiDi support for wireless video streaming similar to what you can get on an Arrandale or Sandy Bridge notebook today. It's unclear what formats or resolutions will be supported. Presumably Cedar Trail isn't going to have the transcoding performance of a Sandy Bridge so you should lower your expectations for WiDi on Atom accordingly. Pricing and availability are TBD on the 120W.

 Next up is a Brazos version of the 120W, the Windpad 110W. We get a similar chassis but a C-series APU inside. Pricing will be around $599 for the Windows 7 equipped tablet. Finally, MSI also has its Windpad 100A, a Tegra 2 based tablet running Android. Currently the tablet is running 2.3.3, however MSI's goal is to release it either with Honeycomb or Ice Cream Sandwich late this year. The industrial design on the Windpad will change by then, hopefully to a thinner form factor. 

 We'll see a sooner release from MSI running Gingerbread, in a chassis that likely looks very similar to what you see here. {gallery 1106}]]>

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The Brazos Review: AMD's E-350 Supplants ION for mini-ITX

AMD has been curiously absent from the value netbook and nettop segments since Atom’s arrival nearly three years ago. These markets are highly profitable only for component vendors, as the OEMs that sell netbooks and nettops must survive on very slim margins in order to hit aggressive price points. It wasn’t too long ago that we were shocked by $699 desktop PCs, but to now be able to get a fully functioning portable PC with display at below $300 is impressive. In order for the profit equation to work out however, you can’t simply scale down a larger chip - you need an architecture targeted specifically at the type of very light workloads you expect to encounter in these segments. Underclocking and undervolting an architecture targeted at high end desktops or servers won’t cut it.

Generally a single microprocessor architecture can cover an order of magnitude of power envelopes. You can take an architecture from 10W - 100W using clock speed, voltage scaling and disabling features (e.g. cutting cache sizes). You can’t efficiently take a 100W architecture and scale it down to 1W. Intel realized this with Atom, and what resulted was a new architecture designed to span the 0.5W - 5W range. Given the constraints of the process (Atom was built at 45nm) and a desire to keep die size down to a minimum (and thus maximize profits), Intel went with a dual-issue in-order architecture reminiscent of the old Pentium - but with a modern twist.

AMD came to the same realization. For it to compete in these value markets, AMD couldn’t rely on its existing Phenom II derived architectures. The Phenom II and its relatives currently span a range of TDPs from 9W to 140W, and at the lower end of that spectrum we’re talking about some very low clock speeds and performance targets. Getting down to 1W was out of the question without a separate design.

What AMD came up with was a core called Bobcat, initially targeted for netbooks, notebooks, nettops and entry level desktops. Architecturally Bobcat is a significant step ahead of Atom: while still dual-issue, it features an out-of-order execution engine making it the Pentium Pro to Atom’s Pentium.

It isn’t just CPU architecture that AMD surpassed Atom with, the first incarnation of Bobcat is an integrated SoC with on-die DirectX 11 GPU. AMD calls this combination a Fusion APU (Accelerated Processing Unit) as it places both a CPU and GPU on a single die. Read on for our full review of AMD's first Fusion part: the E-350.

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AMD’s Brazos vs. Atom Thermals, Revisited

Last week we met with AMD at CES to see some of their latest and greatest offerings. We already reported on the meetings in our earlier article, but in the interest of full disclosure AMD wanted us to come back and rerun some tests. We’ve done that and have some updates on the comparison, along with some additional discussion of what Brazos means for the netbook and nettop markets. Now all we need is hardware in our hands so we can get to the full review….

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