Core 2 Duo vs. Dual Core

U mean Pentium D vs Core2Duo ?
well if u mean this then one word : Core2Duo Destroys the Pentium D

Core 2 Duo is just Intel's name for their dual core processors. They are based on Intel's Core microarchitecture, as opposed to their previous Netburst, and are currently the fastest chips available.

and the E6*** has 4mb!

There are new "Dual Core" CPUs from Intel. They consist of the E2xx and T2xx family. The official family name is "Intel® Pentium® dual-core processor".

http://www.intel.com/products/proc [...] l-core.htm

That's the way I took it...

Wow, I think the OP just needs to go to Intel's website and check out the processor families. The lineup includes CPUs with 1mb, 2mb, and 4mb L2 cache sizes with various FSB speeds as well. Check it out.

Old pentium Ds have been discontinued and the new ones are based on the conroe chips but have crippled cache. So the code name is allendale.

Grimmy with all due respect that's why I said E6300 and E6400 because all the other E6*** models have 4MB but those two are 2MB. Not that there is any reason to buy either of them anymore since the E6750 is about $11 more than the E6300.

It's interesting though because if you look at the user comments on Newegg there is a review for the E6300 from a guy on 11/17/07 who's had ownership for 1 day - 1 week, there really are some people out there still buying these chips.

What if you dont have a board that supports 1333fsb then you cant get the e6750, and the e6300 might be the go.

also a good point

From a CPU standpoint, there's no difference in processing power between a dual core and a core 2 duo at the same clock speed. Only difference is dual core has less L2 cache. Here's sandra copy/paste from my two laptops, one w/ a c2d and another w/ a dual core.

Dell 1525 w/ core 2 duo and 2 gb ram:

Benchmark Results
Dhrystone ALU : 15.50GIPS
Whetstone iSSE3 : 12.32GFLOPS
Results Interpretation : Higher index values are better.

Windows Experience Index
Current Processor(s) : 4.9
Results Interpretation : Higher index values are better.

Performance vs. Speed
Dhrystone ALU : 7.77MIPS/MHz
Whetstone iSSE3 : 6.18MFLOPS/MHz
Results Interpretation : Higher index values are better.

Performance vs. Power
Processor(s) Power : 26.90W
Dhrystone ALU : 576.06MIPS/W
Whetstone iSSE3 : 458.10MFLOPS/W
Results Interpretation : Higher index values are better.

Performance Test Status
Run ID : Intel(R) Core(TM)2 Duo CPU T5750 @ 2.00GHz (2C, 2.00GHz,
2MB L2, 664MHz FSB)
Platform Compliance : x86
NUMA Support : No
SMP (Multi-Processor) Benchmark : Yes
Total Test Threads : 2
Multi-Core Test : Yes
Cores per Processor : 2
SMT (Multi-Threaded) Benchmark : No
Processor Affinity : P0C0T0 P0C1T0
System Timer : 14.32MHz
Number of Runs : 64000 / 640

Processor
Model : Intel(R) Core(TM)2 Duo CPU T5750 @ 2.00GHz
Speed : 2.00GHz
Cores per Processor : 2 Unit(s)
Type : Mobile, Dual-Core
Internal Data Cache : 2x 32kB, Synchronous, Write-Thru, 8-way, 64 byte line size
L2 On-board Cache : 2MB, ECC, Synchronous, ATC, 8-way, 64 byte line
size, 2 threads sharing


Dell 1525 w/ dual core and 3 gb RAM

Benchmark Results
Dhrystone ALU : 15.49GIPS
Whetstone iSSE3 : 12.77GFLOPS
Results Interpretation : Higher index values are better.

Windows Experience Index
Current Processor(s) : 4.9
Results Interpretation : Higher index values are better.

Performance vs. Speed
Dhrystone ALU : 7.77MIPS/MHz
Whetstone iSSE3 : 6.40MFLOPS/MHz
Results Interpretation : Higher index values are better.

Performance vs. Power
Processor(s) Power : 26.90W
Dhrystone ALU : 575.95MIPS/W
Whetstone iSSE3 : 474.80MFLOPS/W
Results Interpretation : Higher index values are better.

Performance Test Status
Run ID : Intel(R) Pentium(R) Dual CPU T3200 @ 2.00GHz (2C, 2.00GHz,
1MB L2, 664MHz FSB)
Platform Compliance : x86
NUMA Support : No
SMP (Multi-Processor) Benchmark : Yes
Total Test Threads : 2
Multi-Core Test : Yes
Cores per Processor : 2
SMT (Multi-Threaded) Benchmark : No
Processor Affinity : P0C0T0 P0C1T0
System Timer : 14.32MHz
Number of Runs : 64000 / 640

Processor
Model : Intel(R) Pentium(R) Dual CPU T3200 @ 2.00GHz
Speed : 2.00GHz
Cores per Processor : 2 Unit(s)
Type : Mobile, Dual-Core
Internal Data Cache : 2x 32kB, Synchronous, Write-Thru, 8-way, 64 byte line size
L2 On-board Cache : 1MB, ECC, Synchronous, ATC, 4-way, 64 byte line
size, 2 threads sharing

Basicly intel have messed up. For example, the E5200 is Dual Core, BUT with the new 45 nm technology, like core 2 quad. Most, or many core 2 duo use 65 nm, and generate more heat and use more power.
It also has 2 MB of L2 cache and runs at 2.5Ghz. And half the price of a core 2 duo at 2.5Ghz.

SO, I don't think a core 2 duo, with twice the price is twice the better.

Besides, this clocks easy up to 3.5 - 4 Ghz ;D

Ummm no...

He has PentiumD and Core2 right, but the Pentium Dual-Core is just a brandname for lower-end Core2 chips.

I know, but if it already has 4+ responses by the time I get there,I consider it resurrected.

Bout like a 65nm Core2 @1.6-1.8Ghz

Can some1 pls answer it in bullet form please? Compare major performance parameters of these 2 chips and their prices as well.

That link given by anonymous to http://binaryday.com/2009/01/15/di [...] pentium-d/ was helpful but too verbose I will say

OMG whats with all the sudden Necro posts?! Did everyone get bored of answering all the new posts or what?!

Difference between Dual Core vs Core 2 Duo vs Pentium D explained in details at
http://www.ialwayscapital.com/2009/07/difference-between-intel-core-2-duo-vs.html

Core 2 Duo is likely 15-30% faster than a Dual core at same speed. That resume all.
Core 2 Duo has better cache, better energy administration, less heat.
Core 2 Duo is a refined Dual Core.
Pentium D is history....

Closed by fihart