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Dual Core Vs Core 2 Duo

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8y, 9m agoPosted 8 years, 9 months ago
Hi, I have been trying to find this information online but its is difficult to pick out the information with my limited knowledge of technology. A poster have given a link to compare processors but I have a hard time understanding it without seeing the "Ghz" listed anywhere (http://www23.tomshardware.com/cpu_2007.html)

The question is, would Dual Core 1.9 Ghz be better or Core 2 Duo 1.4 Ghz assuming all the other components in the laptop are relatively the same? I know Core2Duo uses less power but other than that, which would be better if I just use the laptop for applications such as Dreamweaver, photoshop, office? If possible, a link to see the direct comparison of how a 0.1Ghz increase of Core 2 Duo is equal to a ?Ghz increase of Dual Core or something of that sort would be nice. Thanks in advance
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8y, 9m agoPosted 8 years, 9 months ago
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2 Likes #1
The Intel naming is a little complex. By "Dual Core" do you mean the "Pentium Dual Core"?. These have numbers like E2200, E2180, E2160 and E2140 (for desktop PCs)

If so these are NOT the same as the Core 2 Duo which have numbers like E4500 and E6550 (for desktop PCs)

The "Pentium Dual Core" are basically a cut down Core 2 Duo with only 1Mb of cache.

You have to be careful of just measuring Ghz performance, other factors come into play such as the on-board cache, and the speed of the front side bus.

The Pentium Dual Core only have 1Mb of L2 cache and run at 800 mhz front side bus.

The Core 2 Duo have 2Mb or 4Mb or 6Mb of L2 cache, and can run at 800, 1066 or 1333Mhz front side bus.

You can compare the relative performance of CPUs here:

http://www.cpubenchmark.net/

You can read about different Intel processors here

http://www.intel.com/products/processor_number/index.htm

Can I say I am no expert in this area, but I am trying to build a PC and reading all that I can to help me in what components to buy and the above is the result of my recent reading. It may be all incorrect.
1 Like #2
As a very rough guide, Core 2 tends to perform on average about 20% better per clock than equivalent (half-cache size) Core Duo/Pentium T processors. So the 1.9GHz will likely be a bit quicker than the 1.4GHz Core2 in most tasks, but the power saving in a laptop will be worth the slight loss in speed (the 1.4GHz model will be very low voltage and thus save even more power).
1 Like #4
guilbert53
The Intel naming is a little complex. By "Dual Core" do you mean the "Pentium Dual Core"?. These have numbers like E2200, E2180, E2160 and E2140 (for desktop PCs)

If so these are NOT the same as the Core 2 Duo which have numbers like E4500 and E6550 (for desktop PCs)

The "Pentium Dual Core" are basically a cut down Core 2 Duo with only 1Mb of cache.

You have to be careful of just measuring Ghz performance, other factors come into play such as the on-board cache, and the speed of the front side bus.

The Pentium Dual Core only have 1Mb of L2 cache and run at 800 mhz front side bus.

The Core 2 Duo have 2Mb or 4Mb or 6Mb of L2 cache, and can run at 800, 1066 or 1333Mhz front side bus.

You can compare the relative performance of CPUs here:

http://www.cpubenchmark.net/

You can read about different Intel processors here

http://www.intel.com/products/processor_number/index.htm

Can I say I am no expert in this area, but I am trying to build a PC and reading all that I can to help me in what components to buy and the above is the result of my recent reading. It may be all incorrect.


The E2 series of chips are Core 2 Duo, Intel only decided to rename the e2 series the Pentium Dual Core because they are the budget range and want to keep the Pentium name going. Same architecture as the more expensive ones, just less cache and obviously 800mhz bus, But only the latest Core 2 have 1333mhz bus anyway.

Also the OP was asking for the old style dual core and how it comapres to a 1.4 core 2?

Basically the 1.9 older dual core may be slightly quicker but it uses older architecture compared to the Core 2 Duo, I would certainly get the Core 2 Duo anyday. Also not sure if the older Core Duo run on older boards, I am not really into laptops, but certainly would get the core 2 duo instead.
#5
thanks for the helpful links and replies. they certainly pointed me into the right direction to read more about it. rep added

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