Core 2 Duo SL9400 vs Core 2 Duo P7550

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Aggregate performance score

Core 2 Duo P7550
2009
2 cores / 2 threads, 25 Watt
0.53
+10.4%
Core 2 Duo SL9400
2008
2 cores / 2 threads, 17 Watt
0.48

Core 2 Duo P7550 outperforms Core 2 Duo SL9400 by a moderate 10% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Duo P7550 and Core 2 Duo SL9400 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking28592917
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesIntel Core 2 DuoIntel Core 2 Duo
Power efficiency2.012.67
Architecture codenamePenryn (2008−2011)Penryn (2008−2011)
Release date1 October 2009 (15 years ago)20 August 2008 (16 years ago)
Launch price (MSRP)no data$284

Detailed specifications

Core 2 Duo P7550 and Core 2 Duo SL9400 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 GHz1.86 GHz
Boost clock speed2.26 GHz1.86 GHz
Bus rate1066 MHz1066 MHz
L2 cache3 MB6 MB
L3 cache3 MB L2 Cache6 MB L2 Cache
Chip lithography45 nm45 nm
Die size107 mm2107 mm2
Maximum core temperature90 °C105 °C
Number of transistors410 Million410 Million
64 bit support++
Windows 11 compatibility--
VID voltage rangeno data1.05V - 1.15V

Compatibility

Information on Core 2 Duo P7550 and Core 2 Duo SL9400 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.

SocketPGA478BGA956
Power consumption (TDP)25 Watt17 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo P7550 and Core 2 Duo SL9400. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)++
Turbo Boost Technology--
Hyper-Threading Technologyno data-
Idle Statesno data-
Demand Based Switchingno data-
FSB parityno data-

Security technologies

Core 2 Duo P7550 and Core 2 Duo SL9400 technologies aimed at improving security, for example, by protecting against hacks.

TXTno data+
EDB++

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo P7550 and Core 2 Duo SL9400 are enumerated here.

VT-xno 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 P7550 0.53
+10.4%
Core 2 Duo SL9400 0.48

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 P7550 849
+11.9%
Core 2 Duo SL9400 759

Cinebench 10 32-bit single-core

Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.

Core 2 Duo P7550 2439
+13.8%
Core 2 Duo SL9400 2144

Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

Core 2 Duo P7550 4645
+20.6%
Core 2 Duo SL9400 3850

3DMark06 CPU

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.

Core 2 Duo P7550 2004
+54.2%
Core 2 Duo SL9400 1300

wPrime 32

wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.

Core 2 Duo P7550 35.6
+21.1%
Core 2 Duo SL9400 43.12

Gaming performance

Pros & cons summary


Performance score 0.53 0.48
Recency 1 October 2009 20 August 2008
Power consumption (TDP) 25 Watt 17 Watt

Core 2 Duo P7550 has a 10.4% higher aggregate performance score, and an age advantage of 1 year.

Core 2 Duo SL9400, on the other hand, has 47.1% lower power consumption.

The Core 2 Duo P7550 is our recommended choice as it beats the Core 2 Duo SL9400 in performance tests.


Should you still have questions on choice between Core 2 Duo P7550 and Core 2 Duo SL9400, ask them in Comments section, and we shall answer.

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Intel Core 2 Duo P7550
Core 2 Duo P7550
Intel Core 2 Duo SL9400
Core 2 Duo SL9400

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.


3.5 14 votes

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3 4 votes

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Questions & comments

Here you can ask a question about Core 2 Duo P7550 or Core 2 Duo SL9400, agree or disagree with our judgements, or report an error or mismatch.