Intel Core 2 Duo 45nm Wolfdale vs. 65nm Conroe

It was back in July 2006 when we got our first look at the then brand new Core 2 Duo processor technology. The processor code-named 'Conroe' was initially released in four different flavors ranging from the E6300 (1.86GHz) all the way up to the E6700 model running at 2.66GHz, and from the get go we knew Intel had a winner on its hands.

But for sometime now we've been waiting for Intel to move on to a more efficient and highly hyped 45nm fabrication technology, which was released just last month. The new 45nm Wolfdale line-up includes the E8200 (2.66GHz), E8400 (3.00GHz) and E8500 (3.16GHz) processors that are expected to operate at lower temperatures - and thus reduce fan noise - as well as receive newer SSE4.1 instructions and ship with a larger 6MB L2 cache.

It should not take pages of benchmark results to convince you that the E8500 is a better buy than the E6850 as that clearly is the case. However, those currently in possession of an E6000 series processor or even older Intel or AMD processors, may still be quite interested to see how much faster these new E8000 series CPUs are, and if they are worth upgrading to. The non-race is on then!

View: Intel Core 2 Duo 45nm Wolfdale vs. 65nm Conroe @ TechSpot

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overclocking one of these to 4ghz, I suspect it would be ridiculously easy. For Those that say that don't want to OC, and to get the 8500, the money IMO is still not justified. You can use that money for something useful. Maybe a better video card. The performance diff is minute that you would probably not notice it in real-world applications. Lastly, a couple minutes work for a good performance gain!, and it's not like these are P4's =P

If you look at the Ghz difference vs the benchmark results vs the price; you'll see the "best bang for the buck" is the e8400, especially after the prices go down when supply increase in late February.

what once took 20 minutes (estimated by Windows Movie Maker) to create a 10mb wmv - on a P4 2.8 northwood, how much faster would one of these 8000 series CPUs go? (or does it not work that way?)

I'd say if it was multithreaded, it would be at least twice as fast with a comparable Core 2. And the 45 nm architecture will reduce power consumption and iirc a bit better performance because of the larger number of transistors.

Windows Movie Maker is multithreaded, so if you factor that in, which gives you double, and the fact the Core 2 Duos give you more speed per GHZ gives you triple. An encoding that took 20mins on your P4 will take 6-7mins on these new Core 2 Duo. And if a future version of Windows Movie Maker adds SSE4 support, that's an additional 30% on top of that (making it 4mins).

I have an e8400. it is amazing. the little increase in speed of the e8500 does not justify it's distance in price from the e8400. go for the e8400!

I plan to get the E8400 as soon as the price drops. I was about to go and buy an E6550 but I'm glad this was posted as now I can get an even bigger increase when I upgrade.

In the conclusion section it says:

anyone looking at building a new dual-core system should really only consider one of these new 45nm processors.

I read through the entire article and can't find where they single out one CPU that is worth buying. Which one do you think they are talking about?

I am only guessing its the e8400 based from this:

The E8400 is much faster than the E8200 in both tests while it is only slightly slower than the E8500.

The fact is, we were not singling out one processor, but we are recommending any of the Wolfdales as the best way to go as far as dual-core processors are concerned.

Good luck trying to buy one. Intel is holding back shipments to keep prices up and sell off remaining Conroes. Something they must have learned from the success of Nvidia's price fixing of the 8800 series.

Just a sample of the kinds of extortion schemes you can expect from Intel if AMD were to ever go under. Intel would not have even released these new CPUs if it wasn't still worried about the upcoming bug-fixed Phenoms and AMD's new tech. Since those new Phenoms are still MIA, Intel is holding back on Penryns.