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Intel Core 2 Duo E6750 vs E8400

Mini Review

Intel Core 2 Duo E6750 advantages

  • None

Intel Core 2 Duo E8400 advantages

  • The Core 2 Duo E8400 performs 22% faster in single-threaded applications.
  • Multi-threaded performance of this processor is better.
  • In memory-intensive programs, the E8400 is 12% faster.
  • The E8400 has SSE4.1 instructions enabled.

E6750 vs E8400 performance comparison

The charts in the table below show relative performance of Core 2 Duo E6750 and Core 2 Duo E8400 processors in different types of tasks. The numbers in the charts are based on a number of benchmarks, that you can find in the "Benchmarks" tab. Consequentally, performance in individual benchmarks may be worse or better than what you see in the charts here. The 'Overall performance' shows an average of all-around performance benchmarks, and benchmarks, specific to each type of application.
Single-threaded performance
2
1.6
1.2
0.8
0.4
0
 
 
1
 
1.22
 
 
Higher is better
Multi-threaded performance
2
1.6
1.2
0.8
0.4
0
 
 
1
 
1.22
 
 
Higher is better
Memory-intensive applications
2
1.6
1.2
0.8
0.4
0
 
 
1
 
1.12
 
 
Higher is better
Overall performance
2
1.6
1.2
0.8
0.4
0
 
 
1
 
1.18
 
 
Higher is better

  - Intel Core 2 Duo E6750       - Intel Core 2 Duo E8400

Full list of benchmarks, that demonstrate performance difference between Core 2 Duo E6750 and Intel Core 2 Duo E8400 in various types of programs, can be seen in the "Benchmarks" tab.


E6750 vs E8400 power consumption comparison

Thermal Design Power
80
64
48
32
16
0
 
 
65W
 
65W
 
 
Lower is better
 

Detailed side by side comparison of Intel Core 2 Duo E6750 vs Intel Core 2 Duo E8400 specs can be found in the "Specifications" tab.


Pros and Cons summary

Core 2 Duo E6750 Core 2 Duo E8400
General recommendations:
None
  General recommendations:
Higher performance in all kinds of applications,
Supports SSE4.1 instructions

Drawbacks:

Worse performance in all task types,
Does not support some instructions
 

Drawbacks:

None

Similar processors

Core 2 Duo E6750 Core 2 Duo E8400
 

Similar CPUs use the same socket and architecture as Intel E6750 and Intel E8400, however their performance and other characteristics are slightly different.

Jump to:
  • Benchmarks
  • Comments

More comparisons

Compare Intel Core 2 Duo E6750 with...

Other Core 2 Duo CPU:

Any CPU:


Compare Intel Core 2 Duo E8400 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 E6750 and Intel Core 2 Duo E8400 pages for more detailed specifications of both microprocessors.

 Intel Core 2 Duo E6750Intel Core 2 Duo E8400
Market segmentDesktop
ManufacturerIntel
FamilyCore 2 Duo
Basic details
Model numberE6750E8400
CPU part numberHH80557PJ0674MGAT80570PJ0806M
EU80570PJ0806M
Box part numberBX80557E6750BX80570E8400
BXC80570E8400
BX80570E8400A
Introduction dateJuly 16, 2007January 7, 2008
 
CPU features
Core nameConroeWolfdale
MicroarchitectureCore
Technology (micron)0.0650.045
Data width (bits)64
SocketSocket 775
Frequency (MHz)26673000
Bus speed (MHz)1333
Clock Multiplier89
L1 cache64 KB (code) / 64 KB (data)
L2 cache (KB)40966144
Max temperature (°C)7272.4
TDP (Watt)65
Max power dissipation (Watt)105.15100.31
Core voltage (V)0.85 - 1.50.85 - 1.3625
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 E6750" or "Intel Core 2 Duo E8400" parts please click on the links in the table header.

Benchmarks

System setup

Below is a complete set of Intel Core 2 Duo E6750 and E8400 benchmarks from our CPU benchmark database. Both microprocessors were tested on ASRock 4Core1600Twins-P35 motherboard with 2 GB dual-channel Corsair CM3X1024-1333C9 DDR3 memory, and Powercolor 24PRO256M DDR2 (ATI Radeon HD2400) graphics.

All tests were performed at default frequency and voltage, using manufacturer's stock fan/heatsink. None of the components were overclocked. Motherboard BIOS options were left at default settings.

The results of all benchmarks are broken into four categories: multi-threaded, single-threaded, memory intensive and graphics / gaming.


Core 2 Duo E6750 vs E8400 single-threaded benchmarks

Single-threaded benchmarks run on a single CPU core, and do not depend on such features as the number of cores, or Hyper-Threading technology. Additionally, they do not utilize on-chip caches, dedicated to other cores.


    Intel Core 2 Duo E6750           Intel Core 2 Duo E8400

CINEBENCH R10 CPU score (1 core) benchmark

Measures performance of a single-core rendering of a photo-realistic 3D image using CINEMA 4D software engine.
100%
82.8%

Super PI (1M) benchmark

Measures time, required to calculate the first 1 million digits after the decimal point in the number Pi.
100%
81.5%


Core 2 Duo E6750 vs E8400 multi-threaded benchmarks

Multi-threaded benchmarks utilize all CPU cores and other on-chip resources (on-chip caches, internal buffers, etc). Intel's Hyper-Threading feature also helps to improve multi-threading performance.


    Intel Core 2 Duo E6750           Intel Core 2 Duo E8400

CINEBENCH R10 CPU score benchmark

Measures performance of multi-core rendering of a photo-realistic 3D image using CINEMA 4D software engine.
100%
81.9%

CINEBENCH R10 render time (seconds) benchmark

Measures time taken to render a photo-realistic 3D image using CINEMA 4D software engine.
100%
81.9%

Euler3D benchmark

100%
81.1%

Sandra Dhrystone (MIPS) benchmark

Runs Dhrystone test on all cores, and reports estimated integer performance in MIPS (Millions of Instructions Per Second).
100%
90.5%

Sandra MultiMedia Floating Point (it/s) benchmark

100%
88.5%

    Intel Core 2 Duo E6750           Intel Core 2 Duo E8400

Sandra MultiMedia Integer (it/s) benchmark

100%
89.0%

Sandra Whetstone (MFLOPS) benchmark

Runs Whetstone test on all cores, and reports estimated floating-point performance in MFLOPS (Millions of Floating-Point Operations Per Second).
100%
84.4%

Sandra Whetstone SSE2 (MFLOPS) benchmark

Runs SSE2-enabled Whetstone test on all cores, and reports estimated floating-point performance in MFLOPS (Millions of Floating-Point Operations Per Second).
100%
79.4%

wPrime v1.55 (32M) benchmark

wPrime benchmark measures time taken to calculate square roots of numbers from 1 to 33554431.
100%
82.5%


Core 2 Duo E6750 vs E8400 graphics benchmarks

Graphics benchmarks depend on the type of integrated or discrete graphics adapter, and to less extent on the processor performance. Because these benchmarks are synthetic, they may not truly represent gaming performance. However, they still can be used to estimate whether one processor will perform faster or slower than another CPU in games and other 3D tasks.


    Intel Core 2 Duo E6750           Intel Core 2 Duo E8400

3DMark2001 score benchmark

Runs a series of game simulations and feature tests to measure graphics and 3D game performance of discrete and integrated GPUs. It utilizes a single CPU core, and it is compatible with DirectX 8 and later APIs.
100%
99.3%

CINEBENCH R10 OpenGL score benchmark

100%
97.2%


Core 2 Duo E6750 vs E8400 memory performance

Memory-intensive tests or programs move large amounts of data to/from memory, and they depend more on memory throughput and the size of on-chip caches, rather than on CPU integer/FP/SIMD performance.


    Intel Core 2 Duo E6750           Intel Core 2 Duo E8400

7Zip compressing/decompressing speed (1 thread) benchmark

100%
87.7%

WinRAR compressing/decompressing speed benchmark

100%
89.2%

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