Pentium E5400 vs Core 2 Duo P8400

#ad 
Buy on Amazon
VS

Aggregate performance score

Core 2 Duo P8400
2008
2 cores / 2 threads, 25 Watt
0.55
Pentium E5400
2009
2 cores / 2 threads, 65 Watt
0.64
+16.4%

Pentium E5400 outperforms Core 2 Duo P8400 by a moderate 16% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Duo P8400 and Pentium E5400 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking28352773
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data8.46
Market segmentLaptopDesktop processor
SeriesIntel Core 2 Duono data
Power efficiency2.010.90
Architecture codenamePenryn (2008−2011)Wolfdale (2008−2010)
Release date15 July 2008 (16 years ago)18 January 2009 (15 years ago)
Launch price (MSRP)$209$55

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core 2 Duo P8400 and Pentium E5400 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores2 (Dual-core)2 (Dual-core)
Threads22
Base clock speed2.26 GHz2.7 GHz
Boost clock speed2.26 GHz2.7 GHz
Bus rate1066 MHzno data
L1 cache128 KB64 KB (per core)
L2 cache3 MB2 MB (shared)
L3 cache3 MB L2 Cache0 KB
Chip lithography45 nm45 nm
Die size107 mm282 mm2
Maximum core temperature105 °C74 °C
Number of transistors410 Million228 million
64 bit support++
Windows 11 compatibility--
VID voltage range1.05V-1.15V0.85V-1.3625V

Compatibility

Information on Core 2 Duo P8400 and Pentium E5400 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configurationno data1
SocketBGA479,PBGA479,PGA478LGA775
Power consumption (TDP)25 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo P8400 and Pentium E5400. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)++
Turbo Boost Technology--
Hyper-Threading Technology--
Idle States++
Thermal Monitoring-+
Demand Based Switching--
FSB parity-no data

Security technologies

Core 2 Duo P8400 and Pentium E5400 technologies aimed at improving security, for example, by protecting against hacks.

TXT+-
EDB++

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo P8400 and Pentium E5400 are enumerated here.

VT-dno data-
VT-x+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo P8400 and Pentium E5400. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesno dataDDR1, DDR2, DDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataOn certain motherboards (Chipset feature)

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo P8400 and Pentium E5400.

PCIe versionno data2.0

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Core 2 Duo P8400 0.55
Pentium E5400 0.64
+16.4%

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Core 2 Duo P8400 849
Pentium E5400 975
+14.8%

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Core 2 Duo P8400 280
Pentium E5400 311
+11.1%

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Core 2 Duo P8400 468
Pentium E5400 506
+8.1%

Gaming performance

Pros & cons summary


Performance score 0.55 0.64
Recency 15 July 2008 18 January 2009
Power consumption (TDP) 25 Watt 65 Watt

Core 2 Duo P8400 has 160% lower power consumption.

Pentium E5400, on the other hand, has a 16.4% higher aggregate performance score, and an age advantage of 6 months.

The Pentium E5400 is our recommended choice as it beats the Core 2 Duo P8400 in performance tests.

Be aware that Core 2 Duo P8400 is a notebook processor while Pentium E5400 is a desktop one.


Should you still have questions on choice between Core 2 Duo P8400 and Pentium E5400, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


Intel Core 2 Duo P8400
Core 2 Duo P8400
Intel Pentium E5400
Pentium E5400

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


3.7 84 votes

Rate Core 2 Duo P8400 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.3 308 votes

Rate Pentium E5400 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Core 2 Duo P8400 or Pentium E5400, agree or disagree with our judgements, or report an error or mismatch.