Core 2 Duo P9700 vs Core 2 Duo E8400

Aggregate performance score

Core 2 Duo E8400
2008
2 cores / 2 threads, 65 Watt
0.74
+1.4%
Core 2 Duo P9700
2009
2 cores / 2 threads, 28 Watt
0.73

Core 2 Duo E8400 outperforms Core 2 Duo P9700 by a minimal 1% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Duo E8400 and Core 2 Duo P9700 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking26682681
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorLaptop
Seriesno dataIntel Core 2 Duo
Power efficiency1.072.46
Architecture codenameWolfdale (2008−2010)Penryn (2008−2011)
Release date1 January 2008 (16 years ago)2 June 2009 (15 years ago)
Launch price (MSRP)no data$348

Detailed specifications

Core 2 Duo E8400 and Core 2 Duo P9700 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 speed3 GHz2.8 GHz
Boost clock speed3 GHz2.8 GHz
Bus rate1333 MHz1066 MHz
L1 cache64 KB (per core)64 KB (per core)
L2 cache6 MB (shared)6 MB (shared)
L3 cache0 KB6 MB L2 Cache
Chip lithography45 nm45 nm
Die size104 mm2107 mm2
Maximum core temperatureno data105 °C
Maximum case temperature (TCase)72 °Cno data
Number of transistors410 million410 million
64 bit support++
Windows 11 compatibility--
VID voltage range0.85V-1.3625V1.012V-1.175V

Compatibility

Information on Core 2 Duo E8400 and Core 2 Duo P9700 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 configuration11
SocketLGA775PGA478
Power consumption (TDP)65 Watt28 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo E8400 and Core 2 Duo P9700. You'll probably need this information if you require some particular technology.

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

Security technologies

Core 2 Duo E8400 and Core 2 Duo P9700 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 E8400 and Core 2 Duo P9700 are enumerated here.

VT-d+no data
VT-x++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E8400 and Core 2 Duo P9700. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1, DDR2, DDR3DDR2, DDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardOn certain motherboards (Chipset feature)On certain motherboards (Chipset feature)

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo E8400 and Core 2 Duo P9700.

PCIe version2.0no data

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 E8400 0.74
+1.4%
Core 2 Duo P9700 0.73

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 E8400 1165
+1.4%
Core 2 Duo P9700 1149

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 E8400 370
Core 2 Duo P9700 374
+1.1%

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 E8400 604
Core 2 Duo P9700 634
+5%

Gaming performance

Pros & cons summary


Performance score 0.74 0.73
Recency 1 January 2008 2 June 2009
Power consumption (TDP) 65 Watt 28 Watt

Core 2 Duo E8400 has a 1.4% higher aggregate performance score.

Core 2 Duo P9700, on the other hand, has an age advantage of 1 year, and 132.1% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between Core 2 Duo E8400 and Core 2 Duo P9700.

Note that Core 2 Duo E8400 is a desktop processor while Core 2 Duo P9700 is a notebook one.


Should you still have questions on choice between Core 2 Duo E8400 and Core 2 Duo P9700, 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 E8400
Core 2 Duo E8400
Intel Core 2 Duo P9700
Core 2 Duo P9700

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 2273 votes

Rate Core 2 Duo E8400 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
4.3 40 votes

Rate Core 2 Duo P9700 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Core 2 Duo E8400 or Core 2 Duo P9700, agree or disagree with our judgements, or report an error or mismatch.