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<p><font size="2">When AMD released its Radeon HD 4870 and 4850 the price/performance advantage over NVIDIA at the time was so great that we wondered if it would extend to other GPUs based on the same architecture. Inevitably AMD would offer cost reduced versions of the 4800 series and today we're seeing the first example of that; meet the RV730 XT, otherwise known as the Radeon HD 4670:<br /> <br /> The Radeon HD 4670 is priced at $79, which in the past hasn't really gotten you a very good gaming experience regardless of who made the chip. Today's launch is pretty interesting because the 4670 has the same number of stream processors as the Radeon HD 3870 (320), which at the time of its launch was reasonably competitive in the $180 - $200 range. Let's have a closer look at the 4670's specs:<br /> <br /> Clock speeds are a bit lower and we've go tmuch less memory bandwidth, but the hardware has some advantages. The RV730 XT is a derivative of the GPU in the 4800 series cards, and it carries over some of the benefits we saw inherent in the architecture changes. Of these, antialiasing saw a major benefit, but we also see changes like increases in cache sizes, texturing power, and z/stencil ability. We won't see performance on par with the 3870 in general, but the 4670 will do some damage in certain situations, especially if AA comes into play.<br /> <br /> AMD lists board power of the 4670 and 4650 at 59W and 48W respectively and obviously they're single slot (with no PCIe power required). To make things better, both of them include the same 8-channel LPCM support from the 4800 series. We're waiting to sort out some issues with HDCP and our latest test version of PowerDVD Ultra before confirming the support, but we know first hand that it works on the 4800 series and we see no reason that it wouldn't on the 4600 series.</font></p> <p><font size="2">We are quite happy to see AMD pushing it's latest generation technology out across its entire product line. It's great to see new parts making their way into the market rather than a bunch of old cards with slight tweaks and new names. Of course, AMD is fighting back from a disadvantage, so they don't have the luxury of relying on their previous generation hardware to trickle down the same way NVIDIA can. But we certainly hope that AMD continues to follow this sort of trend, as the past couple years have been very hard on the lower end of the spectrum with a huge lag between the introduction of a new architecture and its availability in the mainstream market.</font></p> <p><font size="2">Also of interest is the fact that AMD has added support in the RV730 for 900 MHz DDR3. The move away from GDDR3 toward the currently ramping up and dropping in price system memory solution is quite cool. Let's take a look at that in a little more depth.<br /> <br /> <a href="http://www.anandtech.com/video/showdoc.aspx?i=3405">Read more...</a></font></p>

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Even though sub $100 hardware is very high volume, we don't often see a lot of heated debate surrounding them. People don't usually get excited about mainstream and low end hardware. The battle for who can run the newest game with the coolest effects at the highest resolution, while not applicable to most people, tends to generate quite a bit of interest. There is a lot of brand loyalty in this industry, and people like to see the horse they backed come out on top. Others, while not siding with a particular company, jump on the wagon with what ever company has the fastest part at any given time. I, myself, am a fan of the fastest hardware out at any given time. I get excited by how far we've come, and how much closer the top of the line gets us to the next step. Keeping up with top of the line hardware is more like attending a sporting event or taking in a play: the struggle itself is entertainment value.

For some, knowing what's best does have relevance. For many many others, it is more important for to keep track of hardware that, while cheap, is as capable as possible. And that is where we are today.

At the end of July, NVIDIA released their GeForce 9500 GT. This part (well, the GDDR3 version anyway) is almost a drop in replacement for the 8600 GT as far as the specifications go. In fact, the prices are nearly the same as well.

No, it isn't that exciting. But even these very low end add in cards are head and feet above integrated graphics solutions. While we'd love to see everything get more performance, the price of the 8600 GT has dropped significantly over time. We haven't gotten to a point where people who aren't willing or able to spend above $100 on a graphics card can get good experiences on modern games. At least software and hardware complexity tend to parallel each other to the point where the disparity in how new a title can be played on cheap hardware isn't getting any worse.

So with so many similarities, why release this part? There won't be an endless supply of G84 hardware going forward. Thus the G96 comes along with nearly the same specs selling at the same price. The decreased die size of the 65nm G96 (as opposed to the 80nm G84) will also help to increase profits for NVIDIA and board partners on this hardware while they sell at the same price point. There are rumors that NVIDIA will even move the G96 to 55nm later this year further increasing their saving and possibly enabling passive cooling solutions. But we will have to wait for a while yet to find out if that will actually happen.

Before we get into the 9500 GT itself, let's take a look at the state of the industry that brought us to this point.

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<p class="subtitle"><font size="2">We have long waited for the new dual-GPU ATI graphics cards to come out and finally it happened. Our today&rsquo;s article should at last determine what strategy turned out more efficient: multi-GPU concept supported by ATI/AMD or a single-GPU concept chosen by Nvidia.<br /> <br /> <a href="http://www.xbitlabs.com/articles/video/display/radeon-hd4870-x2.html">Read more...</a></font></p>

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So, lots of people were asking really good questions about Lucid and their Hydra engine after we posted the initial story on it. We had the opportunity to sit down with them and ask some of those and other questions. And they had quite a lot of really interesting things to say.

From a mile high and the promise of hardware not this year but next, it is tough to really get a good understanding of exactly what's going on and what the implications of this hardware could be if they can deliver on what they say they can. We'll do our best to explain what we know and also what the pitfalls could be.

First, let's address the issue of the box we showed off in the previous coverage. No it will not need an external device. Lucid has designed this to be solution that can be dropped onto a motherboard or a graphics card so integration and user experience should be seamless.

This would be even more transparent than SLI and CrossFire because not even an internal bridge would be needed. Just plug any two cards from the same vendor (and i think they also need to use the same driver version though this is less than clear) and performance will scale linearly with the capabilities of each card.

They did mention the fact that they can implement a solution in an external box for notebooks. For those who need something portable but want high end graphics at home, they could just attach the graphics cards linked with a Hyrda 100 (via PCIe over cables) to the notebook. Not ideal, but it still offers some advantages over high end internal cards (especially in the area of heat) that you might not need when you're on the road.

Sound too good to be true? Yes. Did we see it working? Sure. Do we have performance numbers? Not yet. So there's the rub for us. We really want to put this thing through its paces before we sign off on it. Running on both UT3 and Crysis (DX9 only for now -- DX10 before the product ships though) is cool, but claiming application agnostic linear scaling over an arbitrary number of GPUs of differing capability is a tough pill to swallow without independent confirmation.

We asked them for hardware, and we really hope they'll get us some sooner rather than later. They seemed interested in letting us test it as well. Even if we can't publish numbers on it, it would go a long way for us being more excited about the product if we could run our own benchmarks on it just to see for ourselves.

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It has been a traditional assumption that the monitor and system case should be priced comparably. However, the arrival of expensive processors and graphics accelerators made this statement very doubtful. Today we are going to check how well 300-dollar graphics cards can perform in video games in 2560x1600 resolution. We will test Force 3D Radeon HD 4870 and Nvidia GeForce GTX 260.

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Today is all about the Radeon HD 4870 X2, the same card we previewed last month but AMD is quietly announcing a few other products alongside it. The 4870 X2, internally referred to as R700, is a pair of RV770 GPUs on a single card - effectively a single-card, Radeon HD 4870 CrossFire (hence the X2 moniker). Like previous X2 cards, the 4870 X2 appears to the user and the driver as a single card and all of the CrossFire magic happens behind the scenes. 

The benefit of single-card CrossFire is of course that you can use this single card on any platform, not just ones that explicitly support CF. Since CrossFire is supported on both Intel chipsets and AMD chipsets, it's a bit more flexible than SLI and the need for single-card CF isn't nearly as great as the need for single-card SLI.

Unlike most single-card multi-GPU solutions, the 4870 X2 is literally two Radeon HD 4870s on a single card. The clock speeds, both core and memory, are identical and this thing should perform like a pair of 4870s (which is pretty quick if you have forgotten). The only difference here is that while the standard Radeon HD 4870 ships with 512MB of GDDR5 memory, each RV770 on a X2 gets a full 1GB of GDDR5 for a total of 2GB per card.

Then at $399 we'll see a Radeon HD 4850 X2, which as you can probably guess is a pair of Radeon HD 4850 GPUs on a single card, but with 2GB of GDDR3 and not GDDR5 like the 4870 X2. As interesting as all of these cards are, we only have the 4870 X2 for you today, the rest will have to wait for another time. But it is worth noting that if you are interested in buying a Radeon HD 4870/4850 and keeping it for a while, you may want to wait for the 1GB versions as they should give you a bit more longevity.

Enough with being distracted by AMD's product lineup, let's talk about the competition.

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Although Nvidia still has the fastest graphics card, new ATI’s strategy implies an asymmetric response. Let’s take a closer look at its advantages and drawback with the help of two Sapphire Radeon HD 4850 graphics cards.

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Our study of the theoretical potential of Nvidia GeForce GTX 200 graphics architecture showed that these new solutions are pretty promising, however, have a few issues of their own. The test session in contemporary games should cross all t’s and dot all i’s on this matter.

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<p class="subtitle"><font size="2">New Nvidia GTX 200 graphics architecture is just as interesting as the recently announced ATI Radeon HD 4800 that is why it deserves thorough and detailed discussion. Today we are going to talk about the results of synthetic benchmarks obtained from Gainward GeForce GTX 280 and Leadtek GeForce GTX 260.<br /> <br /> <a href="http://www.xbitlabs.com/articles/video/display/geforce-gtx200-theory.html">Read more...</a></font></p>

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Remember this slide?

The "Scalable design" block we already know about, that's RV770. The 150W TDP $300 part is the Radeon HD 4870, and the 110W $200 part is the Radeon HD 4850, the two cards that have caused NVIDIA quite a bit of pain already. The smaller $100 part has a name, and a release date, neither of which we can talk about at this point, but it's coming.

Today however, is about the 250W, $500 multi-GPU solution - internally known as R700. Hot on the heels of the Radeon HD 4800 series launch, AMD shipped out ten R700 cards worldwide, attempting to capitalize on the success of the 4800 and showcase the strength of AMD's small-GPU strategy.

We're assuming that AMD will call the R700 based cards the Radeon HD 4870 X2, and based on the chart above we're expecting them to retail above $500 (possibly $549?). Today's article is merely a preview as R700s won't be officially launched for at least another month, but AMD wanted to unveil a bit of what it's cooking.

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