Intel Core Duo (Yonah) Performance Preview - Part II
by Anand Lal Shimpi on December 19, 2005 12:55 PM EST- Posted in
- CPUs
Final Words
With updated benchmarks and a more level playing field comparison to the Pentium M and Athlon 64 X2, we're truly able to see the potential of Intel's Core Duo processor. Our initial analysis still holds true, that for a notebook processor, the Core Duo will be nothing short of amazing for professionals. Looking at the performance improvements offered everywhere from media encoding to 3D rendering, you're going to be able to do a lot more on your notebook than you originally thought possible (without resorting to a 12-pound desktop replacement). In the past, power users on the go had to sacrifice mobility for CPU power, but with the Core Duo, that is no longer the case. You will still most likely have to resort to something larger if you need better GPU performance, but at least your CPU needs will be covered. The one thing that Intel's Core Duo seems to be able to do very well is to truly bridge the gap between mobile and desktop performance, at least in thin and light packages.
But what about the bigger picture? What does our most recent look at the performance of Intel's Core Duo tell us about future Intel desktop performance? We continue to see that the Core Duo can offer, clock for clock, overall performance identical to that of AMD's Athlon 64 X2 - without the use of an on-die memory controller. The only remaining exception at this point appears to be 3D games, where the Athlon 64 X2 continues to do quite well, most likely due to its on-die memory controller.
The problem with the Core Duo is that its clock speeds aren't going to be quite high enough to be competitive, on the very high end, with AMD. Luckily for Intel, Conroe should be able to offer higher clock speeds without much of a performance penalty, thanks to its 4-issue core. It is always interesting to note that Intel's marketing focus is moving away from focusing on ILP (Instruction Level Parallelism), yet one of its biggest features of their next-generation microarchitecture is a significant increase in ILP.
Honestly, as it stands today, if Intel can get clock speeds up, the only area that they will need to improve on is gaming performance to be competitive with AMD. We wouldn't be too surprised if the comparisons that we have shown today end up being very similar to what we encounter at Conroe's launch: with AMD and Intel performing very similarly at the same clock speeds, but with AMD's on-die memory controller giving it the advantage in gaming.
Intel's Core Duo launches in January at CES, so if you've been thinking about buying a new laptop, we'd suggest waiting at least another month or so. You won't be disappointed.
With updated benchmarks and a more level playing field comparison to the Pentium M and Athlon 64 X2, we're truly able to see the potential of Intel's Core Duo processor. Our initial analysis still holds true, that for a notebook processor, the Core Duo will be nothing short of amazing for professionals. Looking at the performance improvements offered everywhere from media encoding to 3D rendering, you're going to be able to do a lot more on your notebook than you originally thought possible (without resorting to a 12-pound desktop replacement). In the past, power users on the go had to sacrifice mobility for CPU power, but with the Core Duo, that is no longer the case. You will still most likely have to resort to something larger if you need better GPU performance, but at least your CPU needs will be covered. The one thing that Intel's Core Duo seems to be able to do very well is to truly bridge the gap between mobile and desktop performance, at least in thin and light packages.
But what about the bigger picture? What does our most recent look at the performance of Intel's Core Duo tell us about future Intel desktop performance? We continue to see that the Core Duo can offer, clock for clock, overall performance identical to that of AMD's Athlon 64 X2 - without the use of an on-die memory controller. The only remaining exception at this point appears to be 3D games, where the Athlon 64 X2 continues to do quite well, most likely due to its on-die memory controller.
The problem with the Core Duo is that its clock speeds aren't going to be quite high enough to be competitive, on the very high end, with AMD. Luckily for Intel, Conroe should be able to offer higher clock speeds without much of a performance penalty, thanks to its 4-issue core. It is always interesting to note that Intel's marketing focus is moving away from focusing on ILP (Instruction Level Parallelism), yet one of its biggest features of their next-generation microarchitecture is a significant increase in ILP.
Honestly, as it stands today, if Intel can get clock speeds up, the only area that they will need to improve on is gaming performance to be competitive with AMD. We wouldn't be too surprised if the comparisons that we have shown today end up being very similar to what we encounter at Conroe's launch: with AMD and Intel performing very similarly at the same clock speeds, but with AMD's on-die memory controller giving it the advantage in gaming.
Intel's Core Duo launches in January at CES, so if you've been thinking about buying a new laptop, we'd suggest waiting at least another month or so. You won't be disappointed.
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Hacp - Monday, December 19, 2005 - link
If you want performance of an AMD X2 in a notebook package, the Yonah duo is the way to go.Griswold - Monday, December 19, 2005 - link
Or you wait for dual core Turion. Same thing.Accord99 - Monday, December 19, 2005 - link
But at 2-3x the power consumption.Houdani - Monday, December 19, 2005 - link
http://www.anandtech.com/cpuchipsets/showdoc.aspx?...">http://www.anandtech.com/cpuchipsets/showdoc.aspx?...No need to exaggerate unnecessarily.
Accord99 - Monday, December 19, 2005 - link
That's a system power consumption, I was referring to CPU only. And in a laptop environment, the power usage of the other components are much smaller so the impact of the CPU portion is greater. 90nm single Turions are already uncompetitive with Yonah, making them dual core will just make it worse.saratoga - Monday, December 19, 2005 - link
The difference will most likely be less then 2x judging by the relative power consumption of Dothan and Venice @ 90nm, so you're still wrong.Also, Yonah is a 65nm chip. It should not be surprising that it has an edge over 90nm chips.
Accord99 - Monday, December 19, 2005 - link
Dothan vs Turion ML has a 2X or greater edge under load. Yonah has comparable power consumption to Dothan while 90nm dual core Turions will clearly go up. 3X is not out of the question for non-undervolted DC Turions.Shintai - Monday, December 19, 2005 - link
Ye I would guess on something like 35W will be 40-45W with 65nm Turion X2, unless you sacrifice speeds. The 25W part might be 35-40W.But Turion really never had a chance, since it´s not designed for low power. And as we already saw in the benchies. Who want a dualcore Turion running at 1.8Ghz or less against a 2.13Ghz Yonah when the yonah uses less power.
Intel briliant move so Dothan->Yonah only gave 9% more transistors. Turion->Turion X2 will add 110-120% more transistors (Over 100% due to crossbar between CPUs).
So Yonah will also be cheaper to make than a dualcore Turion.
Furen - Thursday, December 22, 2005 - link
Intel did slice the "cache per core" in half with Yonah, so AMD could conceivably make Dual-core Turions have 512k per core, which would make the die-size increase around 50%, though this will probably have a greater impact on performance on the AMD side, since Dothan's cache was insanely huge to begin with.About the price: AMD Turions will always be cheaper than their direct analogs from Intel because AMD needs to perform the same AND have a better price for people to use it, otherwise they'll go with the market leader, so I dont think we'll ever be faced with chosing between a 1.8GHz Turion and a 2.13GHz Yonah. This is regardless of the production cost, though AMD's margins may take a big hit if Intel pushes prices hard enough.
bob661 - Monday, December 19, 2005 - link
pnw3d