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Intel Core 2 Duo E8600 vs Pentium D 840

Mini Review

Intel Core 2 Duo E8600 advantages

  • In single-threaded tasks, the CPU is expected to have 157% higher performance.
  • In multi-threaded applications, our estimates show that the Core 2 Duo E8600 has 126% better performance.
  • The Intel Core 2 Duo E8600 supports hardware acceleration of virtualized tasks.
  • SSSE3 and SSE4.1 instructions are enabled on this processor.
  • Power consumption of the microprocessor is lower.

Intel Pentium D 840 advantages

  • None

E8600 vs 840 estimated performance

The charts in the table below illustrate relative performance of Core 2 Duo E8600 and Pentium D 840 microprocessors. Performance numbers for Core 2 Duo E8600 were determined based on a variety of tests. Results for Pentium D 840 were derived from benchmark results of other CPUs with the same core and microarchitecture. As a note, the approximation has greater error of margin than results obtained using real-world benchmarks. Additionally, this is an averaged performance, and the displayed results may differ from results, that you may receive in individual tests.
Single-threaded performance
3
2.4
1.8
1.2
0.6
0
 
 
2.57
 
1
 
 
Higher is better
Multi-threaded performance
3
2.4
1.8
1.2
0.6
0
 
 
2.26
 
1
 
 
Higher is better

  - Intel Core 2 Duo E8600       - Intel Pentium D 840

E8600 vs 840 specifications comparison

The graphs below compare the most important characteristics of the Core 2 Duo E8600 and Intel 840 microprocessors. These features, together with an IPC (instructions per cycle) number, determine how well a processor performs.

The number of cores / threads
3
2.4
1.8
1.2
0.6
0
 
 
2
 
2
 
 
Higher is better
Operating frequency
4
3.2
2.4
1.6
0.8
0
 
 
3.33GHz
 
3.2GHz
 
 
Higher is better
Thermal Design Power
200
160
120
80
40
0
 
 
65W
 
130W
 
 
Lower is better
 

  - Intel Core 2 Duo E8600       - Intel Pentium D 840

Detailed side by side comparison of Intel E8600 vs Pentium D 840 specs can be found in the "Specifications" tab. Even more detailed comparison of low level features of both CPUs is located in the "CPUIDs" tab.


Pros and Cons summary

Core 2 Duo E8600 Pentium D 840
General recommendations:
Considerably higher performance in single- and multi-threaded programs,
Features SSE4.1 instructions,
Needs less power
  General recommendations:
None

Drawbacks:

None
 

Drawbacks:

Does not support some instructions,
Requires considerably more power

Similar processors

Core 2 Duo E8600 Pentium D 840
 

Similar processors use the same core and fit the same socket as Core 2 Duo E8600 and Intel 840.

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Popular comparisons:

More comparisons

Compare Intel Core 2 Duo E8600 with...

Other Pentium D CPU:

Any CPU:


Compare Intel Pentium D 840 with...

Other Core 2 Duo CPU:

Any CPU:


Note: To see differences with any CPU, type in any combination of the following into the "Any CPU" field: manufacturer name, full or partial family name, model number, part number, core name, socket name, operating frequency, bus speed (must have FSB suffix), and the last level cache. Here are some valid searches:

  i5-3570K
  Intel Celeron 2 GHz
  Core
  Pentium 4 800FSB
  AMD 3.3GHz 8MB

Specifications

Please visit Intel Core 2 Duo E8600 and Intel Pentium D 840 pages for more detailed specifications of both microprocessors.

 Intel Core 2 Duo E8600Intel Pentium D 840
Market segmentDesktop
ManufacturerIntel
FamilyCore 2 DuoPentium D
Basic details
Model numberE8600840
CPU part numberAT80570PJ0936MHH80551PG0882MN
Box part numberBX80570E8600
BXC80570E8600
BX80551PG3200FN
BX80551PG3200FT
Introduction dateAugust 10, 2008May 26, 2005
 
CPU features
Core nameWolfdaleSmithfield
MicroarchitectureCoreNetburst
Technology (micron)0.0450.09
Data width (bits)64
SocketSocket 775
Frequency (MHz)33333200
Bus speed (MHz)1333800
Clock Multiplier1016
L1 cache64 KB (code) / 64 KB (data)32 KB (data)
L2 cache (KB)61442048
Max temperature (°C)72.469.8
TDP (Watt)65130
Max power dissipation (Watt)100.31154.63
Core voltage (V)0.85 - 1.36251.2 - 1.4
Cores2
Threads2
Multiprocessing1 
 
Instruction set extensions
AMD64 / EM64T 64-bit technology+
MMX+
SSE+
SSE2+
SSE3+
SSE4.1+-
SSSE3 / Supplemental SSE3+-
 
Supported technologies
PowerNow! / Enhanced SpeedStep+
Trusted Execution+-
Virtualization+-
Virus Protection / Execute Disable bit+
 
Integrated Graphics
GPU TypeNone
 
Integrated Memory Controller(s)
The number of controllers0
Notes:

Rows with different specifications or features are highlighted.

For detailed specifications of "Intel Core 2 Duo E8600" or "Intel Pentium D 840" parts please click on the links in the table header.

CPUIDs

The table below compares two random CPUID records for Intel Core 2 Duo E8600 and Intel Pentium D 840 microprocessors, that were submitted to our CPUID database. Please note that different steppings of Intel processors, identified by S-spec numbers or CPUID, may have slightly different features. For that reason the comparison table below only applies to CPUs with specific S-Spec number / CPUID.

  CPUID 1 CPUID 2
ManufacturerIntel
CPU FamilyCore 2 DuoPentium D
Model / Processor NumberE8600840
Frequency3333 MHz3200 MHz
CWID version0.30.4
Part numberAT80570PJ0936MHH80551PG0882MN
S-Spec / Stepping CodeSLB9LSL8CM
 
General information
VendorGenuineIntel
Processor name (BIOS)Intel(R) Core(TM)2 Duo CPU E8600 @ 3.33GHz Intel(R) Pentium(R) D CPU 3.20GHz
Cores2
Logical processors2
Processor typeOriginal OEM Processor
CPUID signature1067AF47
Family 6 (06h)15 (0Fh)
Model23 (017h) 4 (04h)
Stepping10 (0Ah) 7 (07h)
TLB/Cache details64-byte Prefetching
Data TLB: 4-KB Pages, 4-way set associative, 256 entries
Data TLB: 4-MB Pages, 4-way set associative, 32 entries
Instruction TLB: 2-MB pages, 4-way, 8 entries or 4M pages, 4-way, 4 entries
Instruction TLB: 4-KB Pages, 4-way set associative, 128 entries
L1 Data TLB: 4-KB pages, 4-way set associative, 16 entries
L1 Data TLB: 4-MB pages, 4-way set associative, 16 entries
Data TLB: 4-KB or 4-MB pages, fully associative, 64 entries
Instruction TLB: 4-KB, 2-MB or 4-MB pages, fully associative, 128 entries
No 2nd-level cache or, if processor contains a valid 2nd-level cache, no 3rd-level cache
 
Cache
L1 data: Associativity8-way set associative
L1 data: Comments Direct-mapped
L1 data: Line size64 bytes
L1 data: Size32 KB2 x 16 KB
L1 instruction: Associativity8-way set associative
L1 instruction: Line size64 bytes 
L1 instruction: Size32 KB12K uops
L2: Associativity16-way set associative8-way set associative
L2: Comments Non-inclusive|Direct-mapped
L2: Line size64 bytes
L2: Size6 MB2 x 1 MB
 
Instruction set extensions
MMX+
SSE+
SSE2+
SSE3+
SSE4.1+-
SSSE3+-
 
Additional instructions
CLFLUSH+
CMOV+
CMPXCHG16B+
CMPXCHG8B+
FXSAVE/FXRSTORE+
MONITOR/MWAIT+
SYSENTER/SYSEXIT+
XSAVE/XRESTORE states+-
 
Major features
64-bit / Intel 64+
Enhanced SpeedStep+
Intel Trusted Execution technology+-
Intel Virtualization+-
NX bit/XD-bit-+
On-chip Floating Point Unit+
 
Other features
36-bit page-size extensions+
64-bit debug store+
Advanced programmable interrupt controller+
CPL qualified debug store+
Debug store+
Debugging extensions+
Digital Thermal Sensor capability+-
L1 context ID-+
LAHF/SAHF support in 64-bit mode+
Machine check architecture+
Machine check exception+
Memory-type range registers+
Model-specific registers+
Page attribute table+
Page global extension+
Page-size extensions (4MB pages)+
Pending break enable+
Perfmon and Debug capability+-
Physical address extensions+
Self-snoop+
Thermal monitor+
Thermal monitor 2+-
Thermal monitor and software controlled clock facilities+
Time stamp counter+
Virtual 8086-mode enhancements+
xTPR Update Control+
+ - feature is supported
- - feature is not supported
Features, not supported by all processors in the table, are not displayed

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