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First Tests: AMD's Dual-Core Chip Delivers Real Power Boost

First Tests: AMD's Dual-Core Chip Delivers Real Power Boost

Our exclusive tests show this CPU is faster than Intel's dual-core Pentium EE 840.

Anush Yegyazarian, PC World Monday, May 09, 2005

AMD fans need wait no longer for dual-core desktop processors--they're ready now. And in our exclusive tests of an AMD reference system, we found that it beat Intel's dual-core Pentium Extreme Edition across the board.

As with dual-core Pentium EE systems, you'll get the most performance benefit when you're working with multiple applications at once, or when you use multithreaded software, which can recognize more than one processor.

Dual-core chips build in two processing cores, in effect giving you two CPUs in one piece of silicon. You also get two L2 memory caches, one for each core--the 2.4-GHz Athlon 64 X2 4800+ chip we tested, for example, had 1MB of L2 per core (CPUs also have 64KB of L1 cache per core). The Athlon 64 X2 processors (formerly code-named Toledo) all have 64-bit support and will ship in June, joining AMD's already-available dual-core Opteron server and workstation processors. Additional X2 models range from the 2.4-GHz 4600+ with 512KB of L2 cache per core to the 2.2-GHz 4200+ with 512KB of L2 cache per core.

You may be able to upgrade your existing Athlon 64 PC to the new chips with a BIOS change--no need to buy a new board. Check AMD's site for specifics on motherboard support.

Speed Boost
We tested a reference system running Windows XP Professional that AMD provided. It came with 1 gigabyte of 400-MHz DDR2 memory, a 10,000-rpm 74GB hard disk, and an NVidia GeForce 6800 Ultra graphics card with 256MB of DDR3 RAM.

Though it was not the top-scoring system we've ever tested, it earned second place with a 116 mark on PC WorldBench 5, and handily beat the 95 score of the 3.2-GHz Pentium Extreme Edition 840 dual-core Intel reference system we tested previously. It also bested the average score of 107 of two previously tested 2.6-GHz Athlon 64 FX-55 systems, which use AMD's current fastest single-core CPU, as well as the 102 score of the Intel reference PC using the 3.73-GHz, 64-bit Pentium EE chip, a single-core CPU.

The AMD unit truly showed its prowess on the multitasking portion of WorldBench 5, where its 6-minute, 44-second time was 3 minutes, 42 seconds faster than the Athlon 64 FX-55 systems' average and about 3 minutes faster than the dual-core P4 reference PC. It also performed well with multithreaded applications such as Windows Media Encoder and Roxio VideoWave. With the former, it shaved about 90 seconds from the roughly 5.5-minute and 6-minute times of the dual-core P4 and two Athlon 64 FX-55 PCs, respectively. With VideoWave, its 4-minute time shaved about 30 seconds from the dual core Intel PC, and about 50 seconds from the average of the two Athlon 64 FX-55 machines.

Though games have yet to be optimized for dual-core--that's coming at the end of the year--we saw no real performance degradation with the new chip. Generally, dual-core machines will earn their keep by allowing you to actually work while, say, a virus check goes on in the background, or while you use your PC to record TV and surf the Web.

Kevin Krewell, editor-in-chief of Microprocessor Report, says he'd recommend them for Media Center PCs in particular. They not only let you multitask, but many of the media encoders are multithreaded and can take advantage of dual-core technology.

If you want one of these powerful systems, you will be paying for it: 4800+ chips alone will cost $1001 each in quantities of 1000, while Intel's 3.2-GHz Pentium EE 840s sell for $995 each in the same quantities. The entry-level Athlon X2 chips will be about half that much, however, so you can still get the benefits of 64-bit technology and dual-core processing without breaking the bank.

Intel devotees should also be seeing Pentium D-based systems available this month, which should also be considerably cheaper than those with the Pentium EE 840.

Tech Battle
AMD has made claims that its dual-core processors were built from the ground up for the technology, while Intel's were rushed to market. In this particular case, Krewell tends to side with AMD. He says it was clear from early presentations of its Opteron chips (ones code-named Hammer in particular) that hooks were in there for a second processor core.

On the other hand, Intel, Krewell says, was going down a single-core path, constantly revving the speed to get more and more performance, but realized it was not the best solution and backtracked. Though there are indications that Intel had plans for dual-core chips prior to the Pentium EE announcements, "you can tell from looking at the [current] processor die photos that these are two separate CPUs minimally connected," he explains.

The next Itanium and the first dual-core mobile Pentium chip, however, look to be dual-core designs from the ground up, he says.

AMD has one other advantage over Intel's dual-core chips: heat. Its X2s hover around 100 watts, while the Pentium EE is at about 145 watts.
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Performance Soars Amid Intel-AMD Dual-Core Duel

Performance Soars Amid Intel-AMD Dual-Core Duel

By Jay Lyman - TechNewsWorld 05/04/05 5:00 AM PT

Gartner research vice president Steve Kleynhans said most IT customers have expressed "cautious optimism" on the new dual-core chips, which come with higher prices and additional complexity. He added while there is demand for the technology based on a need to run more applications simultaneously, there is also a limited number of customers who will pay to be first adopters.

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Underneath their dueling dual-core processor announcements, demonstrations, and, most recently, actual releases to the market, Intel (Nasdaq: INTC) , which unveiled its Pentium Extreme Edition chips last month, and Advanced Micro Devices, (NYSE: AMD) which unleashed its Opteron chips, represent very different approaches to dual-core. Both, however, achieve a significant increase in computing power for their customers, who are getting what is generally described by industry analysts as the biggest computing boost in more than two decades.

For some time, both Intel and AMD have been building dual-core capabilities into their products, and some of these have been announced, revealed, and released within days of each other during the last couple of months. While the two chip makers fought a similar public relations and technical battle over 64-bit computing, with AMD at the fore until recently, the ability to take advantage of dual-core technology from both companies already exists, according to Gartner research vice president Steve Kleynhans.

"I think dual-core is more important than 64-bit out of the chute because the infrastructure [for dual-core] is already in place," Kleynhans told TechNewsWorld. "In dual-core, everything's ready to roll -- the operating systems, the applications. There are a lot of applications where multi-threating could help. Multi-threading has been added already. Users already have multi-threading platforms, whether they're aware of it or not. There's really a usage model in place to make use of the technology for most users immediately."

One New Technology, Two New Visions
While dual-core technologies from both Intel and AMD amount to the use of an additional processor core to allow for more, multiple-running programs, the two chip players take different routes to achieve this.

With its Pentium Processor Extreme Edition 840 running at 3.2 GHz and its 955X Express chipset, Intel enables multi-core performance with its Hyper-Threading technology that allows each extension core to present itself as two logical processors. The company -- which is producing dual-core technology in 15 projects across its line of processors -- said its Pentium Extreme Edition 840 could process four software threads at the same time by using resources more efficiently.

For its part, AMD touts that its multi-core processing technology -- available in its popular Opteron chips -- was built from the ground up to create a non-disruptive, upgradeable platform that can speed time to market and lower design and support costs.

Both companies tout hardware manufacturer support, with Intel lining up Dell (Nasdaq: DELL) , Alienware and Velocity Micro, while AMD's dual-core customer list includes Hewlett-Packard (NYSE: HPQ) , IBM (NYSE: IBM) and Sun.

Cautious Optimism
Kleynhans said it would appear on the surface that AMD has a dual-core advantage because of the way memory is accessed with its technology. However, the analyst added it is still too soon to tell which platform will provide better in terms of real-world performance.

"In the real world, who knows," he said. "Either platform is going to provide a significant step up in performance in a wide variety of applications."

Kleynhans reported most IT customers have expressed "cautious optimism" on the new dual-core chips, which do represent higher price and additional complexity. He added while there is demand for the technology based on a need to run more applications simultaneously -- particularly security programs -- there is also a limited number of customers who will pay to be first adopters.

"Most are going to wait until dual-core comes for free, which will likely be the case in 2006," he said.

'Lego' Approach
Mercury Research president Dean McCarron told TechNewsWorld the companies' approaches to dual-core and multi-core computing, while different, both represent a change from the pursuit of performance through increased processor clock speed, or megahertz.

"This is significant, and it's a pretty fundamental change," he said. "[Multiple processor cores] is now how we're going about getting additional performance. It's one of the biggest changes in the past 20 years."

McCarron said AMD designed its multi-core technology to scale up for additional performance, describing it as a "Lego approach" to dual-core and multi-core processing.

Intel, on the other hand, has a legacy of putting the multi-core processing capability largely in its front side bus design, which efficiently arbitrates and delegates processing tasks, according to McCarron. He said the two companies had different reasons for their different designs, adding that AMD's cost per component is higher than Intel's, which has the manufacturing might to get more advantage from economies of scale.

McCarron added software licensing concerns for dual-core hardware are beginning to vanish as vendors -- with the exception of Oracle (Nasdaq: ORCL) so far -- indicate they will base software license pricing on a per central processing unit (CPU), rather than per core, basis.

A Joust and a Jump
Gartner research vice president Martin Reynolds said the differences between the dual-core approaches from AMD and Intel amount to the difference between the basic Opteron and Pentium 4 core designs.

"AMD has fast buses and direct memory connect," Reynolds told TechNewsWorld. "Intel has a slower bus, but they make up for it with larger cache on chip."

Reynolds alluded to both companies' previous work toward multi-core technology, indicating that their dueling marketing strategies and dual-core rollouts highlight the lack of difficulty in producing the new chips.

"What's interesting is it feels as though they've both pulled the ship dates forward and demo'd within days of each other," he said. "This reflects it's relatively easy to do a dual-core design. It's not like they're starting over and completely re-engineering."

Reynolds said a straight performance comparison between the two dual-core designs might give the edge to Intel. However, he added that in the all-important two-way and four-way server categories, AMD's design scales better to give it an advantage.

"Intel is addressing it, but AMD does have an edge in that regard," he said.

Neck and Neck
Reynolds said despite some trending up for AMD in the last couple of quarters, the two chip makers "pretty much joust around the same market share," which he estimated at about 20 percent in units and 10 percent in revenue for AMD, the rest belonging mostly to Intel in both categories.

"It's amazing how little performance impacts the market," he said.

The analyst said both companies are including the multi-core functionality throughout their chip lines and users will not have to wait to take advantage of it.

"It will be in their systems relatively quickly," he said.

Reynolds said the multi-core capabilities would prove most useful in workstation, graphics and video editing, CAD simulation and game development, where dual-core represents one of the biggest performance increases ever.

"Those employees in those areas are highly paid and highly leveraged," he said. "For those employees, it's worth the price."
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Dual core processors, AMD takes the lead?

Dual core processors, AMD takes the lead?
By: Sander Sassen
May 26, 2005, 03:00 PM

I’m sure you’ve noticed that both AMD and Intel are now shipping dual core processors, but unlike with previous processor releases these are turning out to be a hard sell. Surprising? Not really, now that model numbers and even the almighty MHz no longer matter many people frown upon these new processors and wonder why they need two, instead of one. Well, many (r)etailers seem to have found a way to explain things better to Joe Average that shops for a new PC at BestBuy, they simply state that both Intel and AMD couldn’t make faster processors, so now they’re using two instead, to up the performance.

Whilst the bit about Intel and AMD not being able to make faster processors certainly has a truth to it, although they will emphatically deny it, the latter part of that statement is further from the truth, as explained earlier. But there’s more about these new processors that you’re average BestBuy sales clerk will not be able to report on. For example the fastest Intel dual core processor, the 840D uses two 3.2GHz Prescott core processors with HyperThreading, causing for the processor to have two physical cores, and four logical ones, two of which are the result of the HyperThreading technology.

It sure sounds impressive but doesn’t mention that the fastest Intel processor runs at 3.8GHz, a good 400MHz faster, also has HyperThreading, and performs quite a bit faster for the majority of tasks than its uber expensive dual core relative. It also doesn’t mention that you’ll need a brand new motherboard to run this processor as it won’t drop into your existing Socket-775 motherboard. AMD on the other hand seems to have the most appealing solution, their processor ranks right up there with their other offerings in terms of clockspeed and drops into any Socket-939 motherboard, only requiring a BIOS update in most cases.

But it doesn’t stop there, the Athlon-64 architecture; or rather the interface between the processors, called HyperTransport, was engineered from the start to take benefit from multiple processors cores, whether on a single die, or on the same motherboard. This makes AMD solution a far more elegant, but more importantly a far better performing one, with their top of the line dual processors running at the same clockspeed as their fastest Athlon-64 processor. It however fails to match the performance of their much heralded FX series processors. So for now dual core is a nice extra but will not save the day in terms of absolute performance, for that we’ll need another bump in, you guessed it, processor clockspeed.

Sander Sassen.
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Re: First Tests: AMD's Dual-Core Chip Delivers Real Power Boost

I haven't owned a computer with an intel CPU since my 486SX 25MHz.

I used to work for DEC and was heavily involved in the initial Alpha AXP launch in Australia, AMD Athlon was like going home again in a number of ways heh!
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Re: First Tests: AMD's Dual-Core Chip Delivers Real Power Boost

I haven't owned a computer with an intel CPU since my 486SX 25MHz.

I used to work for DEC and was heavily involved in the initial Alpha AXP launch in Australia, AMD Athlon was like going home again in a number of ways heh!

I know what you mean, heh.
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Re: First Tests: AMD's Dual-Core Chip Delivers Real Power Boost

smile Hi Geck0
I bought a DEC Alpha 400MHz Twin Processor Motherboard to put in a customers
graphics server when I lived in Canada back in 1993 and it cost him $6000 Canadian
It was cutting edge technology at the time
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Re: First Tests: AMD's Dual-Core Chip Delivers Real Power Boost

I think I still have some 1993 DEC SOC's (System & Options Catalogues) in storage somewhere. Gone are the days when a company would spend $50 on a book to give away, but like you said the price of admission was a lot different too.

LOL, I remember selling a heap of the 66MHz Alpha release SDK boxes for the bargian price of $5000 each - Some of the High end 4000 / 6000 boxes were 250K deals at the time.
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Dual-Core Chip Delivers Real Power Boost

Is the rosetta executable a multi-threaded application? Will it be able to take advantage of dual-core processors? Will dual-core processors complete a work unit in less time?
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Re: Dual-Core Chip Delivers Real Power Boost

Is the rosetta executable a multi-threaded application? Will it be able to take advantage of dual-core processors? Will dual-core processors complete a work unit in less time?


At this point I don't think so, but like everything IT related - If you build it they will come (eventually).
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Re: Dual-Core Chip Delivers Real Power Boost

The WCG agent as we know it, is strictly single core processor software.

There has been much moaning and crying for dual processor support in other threads throughout the forums starting in Nov. of 2004.

What I will probably do is aquire a dual core system and use that for the BOINC projects I participate in since this software does recognize multiple processors.

The single core system that use to run BOINC will then be put on the WCG.

Cheers, I Crunch for fun!!!!!
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