Intel Core 2 Quad Q8400 vs Core i5-2300

Mini Review

Intel Core 2 Quad Q8400 advantages



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  • None

Intel Core i5-2300 advantages



Intel Core i5-2300
  • In single-threaded tasks, our estimates show that the Core i5-2300 processor is 54% faster.
  • Based on our estimates, multi-threaded performance of the i5-2300 is better.
  • This microprocessor has SSE4.2 instructions.
  • The CPU includes AES extension to the instruction set. These instructions accelerate AES encryption and decryption, and are valuable if you need to protect your disk or network data.
  • The Intel Core i5-2300 microprocessor incorporates AVX instructions. Even though these extensions are not widely used in programs yet, their support should improve in future apps.
  • The i5-2300 features integrated HD 2000 GPU. This graphics unit replaces low-end graphics card, and thus lowers the cost of the system.

Q8400 vs i5-2300 estimated performance

The charts in the table below illustrate relative performance of Core 2 Quad Q8400 and Core i5-2300 CPUs. Performance numbers for Core i5-2300 were determined based on a variety of benchmarks. Results for Core 2 Quad Q8400 were derived from benchmark results of other microprocessors with identical core and microarchitecture. As a note, the estimate has greater error of margin than results obtained using real-world tests. Additionally, this is an averaged performance, and the difference in individual benchmarks may be better or worse than what you see in the charts below.
Single-threaded performance
2
1.6
1.2
0.8
0.4
0
 
 
1
 
1.54
 
 
Higher is better
Multi-threaded performance
2
1.6
1.2
0.8
0.4
0
 
 
1
 
1.55
 
 
Higher is better

  - Intel Core 2 Quad Q8400       - Intel Core i5-2300

Q8400 vs i5-2300 specifications comparison

The graphs below demonstrate the difference between Q8400 and Core i5-2300 most important characteristics. These features, together with an IPC (instructions per cycle) number, determine how well a processor performs. The "Operating frequency" graph uses dark color to represent base frequency, while lighter area is for additional frequency, provided by Turbo feature. Darker area on the "On-chip cache" graph is for the On-chip L2 cache. Lighter area is for the L3 cache cache. Although the L3 cache cache is usually larger than the On-chip L2 cache, it is always slower.

The number of cores / threads
5
4
3
2
1
0
 
 
4
 
4
 
 
Higher is better
Operating frequency
4
3.2
2.4
1.6
0.8
0
 
 
2.67GHz
 
3.1GHz
 
 
Higher is better
On-chip L2 + L3 cache
8
6.4
4.8
3.2
1.6
0
 
 
4MB
 
7MB
 
 
Higher is better
Thermal Design Power
110
88
66
44
22
0
 
 
95W
 
95W
 
 
Lower is better

  - Intel Core 2 Quad Q8400       - Intel Core i5-2300

Detailed side by side comparison of Intel Q8400 vs i5-2300 specs can be found in the "Specifications" tab.


Pros and Cons summary

Core 2 Quad Q8400 Core i5-2300
General recommendations:
None
  General recommendations:
Much higher single- and multi-threaded performance,
Supports SSE4.2 / AVX instructions,
Comes with HD 2000 GPU

Drawbacks:

Lacks some instructions,
No on-chip graphics,
The socket is obsolete
 

Drawbacks:

None

Similar processors

Core 2 Quad Q8400 Core i5-2300
 

Similar CPUs use the same socket and architecture as Intel Core 2 Quad Q8400 and Intel Core i5-2300, but their performance and other characteristics are a bit different.


Where to buy


Both processors are no longer produced. If you want to buy one of them, the best place to look are online auction sites, like eBay. They may also be available from third party vendors at Amazon.
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More comparisons

Compare Intel Core 2 Quad Q8400 with...

Other Core i5 CPU:

Any CPU:


Compare Intel Core i5-2300 with...

Other Core 2 Quad 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 Quad Q8400 and Intel Core i5-2300 pages for more complete specifications of both microprocessors.

 Intel Core 2 Quad Q8400Intel Core i5-2300
Market segmentDesktop
ManufacturerIntel
FamilyCore 2 QuadCore i5
Basic details
Model numberQ8400i5-2300
CPU part numberAT80580PJ0674ML
AT80580PJ067HL
CM8062301061502
Box part numberBX80580Q8400
BXC80580Q8400
BX80623I52300
BXC80623I52300
Introduction dateApril 19, 2009January 9, 2011
 
CPU features
Core nameYorkfieldSandy Bridge
MicroarchitectureCoreSandy Bridge
Technology (micron)0.0450.032
Data width (bits)64
SocketSocket 775Socket 1155
Frequency (MHz)26672800
Turbo Frequency (MHz) 3100 / 3000 / 3000 / 2900
Bus speed (MHz)1333 
Clock Multiplier828
L1 cache128 KB (code) / 128 KB (data)
L2 cache (KB)40961024
L3 cache (KB) 6144
Max temperature (°C)71.472.6
TDP (Watt)95
Core voltage (V)0.85 - 1.3625 
Cores4
Threads4
Multiprocessing1
 
Instruction set extensions
AES / Advanced Encryption Standard-+
AMD64 / EM64T 64-bit technology+
AVX / Advanced Vector Extensions-+
MMX+
SSE+
SSE2+
SSE3+
SSE4.1+
SSE4.2-+
SSSE3 / Supplemental SSE3+
 
Supported technologies
PowerNow! / Enhanced SpeedStep+
Turbo Core / Turbo Boost-+
Virtualization+
Virus Protection / Execute Disable bit+
 
Integrated Graphics
GPU TypeNoneHD 2000
 
Integrated Memory Controller(s)
The number of controllers01
Notes:

Rows with different specifications or features are highlighted.

For detailed specifications of "Intel Core 2 Quad Q8400" or "Intel Core i5-2300" parts please click on the links in the table header.

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