RSSATI seeks to break back into the GPU game with barrier-breaking cards
By Michael Hatamoto | Published June 26, 2008, 6:24 PM
This week, AMD launched two new graphics cards that each give the Sunnyvale- based company two new firsts:. The ATI Radeon HD 4850 is the first teraflop graphic card, while the ATI Radeon HD 4870 is the first to feature GDDR5 memory.
Both cards in the 4800 series reportedly represents what AMD describes as a "2X performance jump" over the older Radeon HD 3800 generation; providing one trillion calculations per second, when the previous generation of cards could only offer up to half a trillion calculations. This marks one of the first times the speed of GPUs has been measured in teraflops.
The HD 3870 -- whose throughput has retroactively been estimated at 500 gigaflops -- previously was the fastest card in AMD's lineup. Reaching the 1 teraflop level for under $200 is an impressive feat that has not been matched before. In 1996, the first teraflop PC was unveiled, but it required a whopping one megawatt to run; having a teraflop on a single GPU is an impressive feat.
The bump up to GDDR5 from GDDR3 enables twice the amount of bandwidth for the next-gen AMD cards. The 512 MB of GDDR5 memory is connected over a 256-bit bus that provides 3.6 Gbps of bandwidth.
Furthermore, performance-per-watt has also increased compared to older AMD cards because of a new power-management feature that limits the power consumed by the card when it's idling.
The 4800 series supports DirectX 10.1 and 7.1 surround sound in addition to its higher bandwidth and increased energy benefits.
Both cards were expected to launch in May, but AMD was forced to push back the date closer to the launch of the NVidia'a high-end GT200 chip last week. The two companies have been battling head-to-head, but this is the best chance ATI has had recently in fighting back against NVidia. Its GT200-based 260 has 192 streaming processor cores and 896 MB of onboard memory, while the 280 card has 240 cores and 1 GB of memory.
AMD made sure both cards are able to handle HD video, support Blu-ray movies, and improve HD editing capability.
The Radeon HD 4850 is a midrange 3D graphics card that has a 625 MHz GPU core clock speed, 512 MB GGDR3 memory, and a single-slot PCI-E 2. It also has 800 stream processing cores. But early tests show it runs a tad bit hotter than reviewers would like. AMD expects this model, which costs $199, to compete with the NVidia GeForce 9800 GTX+ card, which costs $229.
By comparison, the ATI Radeon 4870 both offers GDDR5 memory performance while pushing 1.2 teraFLOPS. It has a 750 MHz GPU core clock speed, 512 MB GDDR5 memory, and is a dual-slot PCI-E 2 card. The card is available now for $299.
It's now possible for enthusiastic PC gamers to use the Crossfire X configuration to have almost 5 teraflops of power using four GPUs and 3200 stream processors.
AMD hopes the 4800 series will be used for real-world applications, such as rendering, encoding and decoding, and compression and decompression. Although some PC manufacturers have begun to question the continuing relevancy of GPUs into the future for anything other than enthusiasts' use, AMD says encoding DVDs using the GPU is more efficient and faster than using a CPU.
Along with OEMs preparing to manufacture both cards, a handful of system integrators also have plans for it, including Alienware, Falcon Northwest, iBUYPOWER, CyberPower, and Extreme PC.
AMD is now aiming for three different markets: $200 for entry-level, $300 for mid-range, and $500+ for specialized graphics cards. But the company is shifting its focus more towards the entry level and mid-range cards, though not at the sacrifice of overall GPU power. Shifting ATI's focus from upper-scale GPUs down to more efficient GPUs with good clock speed at a lower price, could help compel NVidia to lower its prices.
Damn! I was hoping to buy the 4870, might as well wait for 4870 X2 or 4890. And the benchmarks don't speak well of the power consumption. Plus with PDC in October, we could be seeing the debut of DX 11 soon.
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gee.. I wonder how fast it can draw those octagon shaped wheels in games like WOW and GRID?? Until I see real curves as in roads, bridges, curbs, wheels, etc. I'm not wasting money on a highend graphics card.
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Very nice boards that will force Nvidia to lower there prices. Reviews of these new cards are very impressive.
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It's too bad ATI doesn't have the same broad driver support that nVidia has. No Unix drivers and buggy Linux drivers. If ATI had better Linux support I would buy one in a heartbeat.
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I dare disagree. Take a look here http://www.phoronix.com/scan.php?page=home AMD/ATI is actually ahead of NV in terms of open source drivers for Linux.
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Open source, yes. Functional, no. Whenever I build a linux system, I always go with Nvidia. I've had too many headaches trying to make ATI cards work.
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My system @ home with the Ati 2900HD XT works just fine in Ubuntu with compiz enabled.
*shrugs*
Must have one of the good cards. :P
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heh, or just better luck.
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My last 2 nvidia cards were bunk. :p
One had to be replaced twice before I threw it away and the the second simply did not perform to specs.
(first was BFG, second was EVGA)
Bought the 2900...not a single problem.
Don't get me wrong, I really don't have a problem with nvidia, in fact, I like them better than ATi...go figure. I despise the Catalyst drivers. All of my previous cards were nvidia, up to the 7300, where it all went to hell.
I hated ATi. Couldn't stand them. After two nvidia failures, I decided, what the hell, why let my personal opinions get in the way of things, and bough one...
*shrug*
Still don't like ATi much, but... I'm using their card. ;)
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Wow. I used to be an ATI fanboy. Then I started building Linux systems, and I haven't bought an ATI card since. Go figure.
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Glad ATi/AMD are back in the game. I'm getting tired of RMAing my nVidia cards every 6 months.
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The 4800 series supports DirectX 10.1 and 7.1 surround sound...
Surround sound? Am I the only one confused by this statement?
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Yeah simplified wording doesn’t really do this article wonders. It supports 8-channel LPCM over HDMI which is a really big thing for some people. A HTPC is looking very attractive right now :)
I picked up a 4850. First ATI card I have owned for a long time now. Good to see them finally getting their stuff into gear.
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I need a "Mr. Fusion" too, psycros. :-) I love AMD/ATI, but I will look at them or Intel or Nvidia for the best value looking at speed, value, energy expenditure. Lately AMD/ATI are the best for the mid range and that is what most people want.
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Yawn...
In my experience ATI had always been trouble. Personally I will never buy one of their products again.
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^ How so? I've owned every ATi card since the 9500 Pro (including every version - i.e. Pro, XT, XTX) and have *never* had any problems. And, the same could be said about any of nVidia's cards as well...there are plenty of people that have had nothing but 'troublesome' cards along with nothing but perfect experiences from the Green corner...it's not just ATi buddy.
Not discounting that you have had issues before, but don't you think that your experiences might have been unique? After all, ATi wouldn't be in business at all if all they made was 'troublesome' cards...plus, if you do *any* amount of research, ATi owners are just as happy as nVidia owners.
I'm personally holding out for the 4870X2 card. I'll be getting 4 of them and hybrid-crossfiring all 4 of them on my M3A32-MVP. We'll talk then...
Psychlone
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Never used ATI cards b4 but my next purchase going to be an ATI card.
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Nvidia had this coming..they've gotten ridiculous on pricing and it takes a Mr. Fusion to run their stuff now.
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Very nice ATI. Glad to see ATI is still doing nicely against NVidia, keeping up the competition.
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