Core 2 Quad Q9450 vs Core 2 Duo E6600

Aggregate performance score

Core 2 Duo E6600
2006
2 cores / 2 threads, 65 Watt
0.58
Core 2 Quad Q9450
2008
4 cores / 4 threads, 95 Watt
1.38
+138%

Core 2 Quad Q9450 outperforms Core 2 Duo E6600 by a whopping 138% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Duo (Desktop) E6600 and Core 2 Quad Q9450 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking28232238
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorDesktop processor
SeriesCore 2 Duo (Desktop)no data
Power efficiency0.841.37
Architecture codenameConroe (2006−2007)Yorkfield (2007−2009)
Release dateno dataMarch 2008 (16 years ago)

Detailed specifications

Core 2 Duo (Desktop) E6600 and Core 2 Quad Q9450 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)4 (Quad-Core)
Threads24
Base clock speedno data2.66 GHz
Boost clock speed2.4 GHz2.67 GHz
Bus rate1066 MHz1333 MHz
L1 cache64 KB64K (per core)
L2 cache4 MB12 MB (shared)
L3 cache0 KB0 KB
Chip lithography65 nm45 nm
Die size143 mm22x 107 mm2
Maximum case temperature (TCase)no data71 °C
Number of transistors291 million820 million
64 bit support++
Windows 11 compatibility--
VID voltage rangeno data0.85V-1.3625V

Compatibility

Information on Core 2 Duo (Desktop) E6600 and Core 2 Quad Q9450 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
Socket775LGA775
Power consumption (TDP)65 Watt95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo (Desktop) E6600 and Core 2 Quad Q9450. You'll probably need this information if you require some particular technology.

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

Security technologies

Core 2 Duo (Desktop) E6600 and Core 2 Quad Q9450 technologies aimed at improving security, for example, by protecting against hacks.

TXTno data+
EDBno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo (Desktop) E6600 and Core 2 Quad Q9450 are enumerated here.

VT-dno data+
VT-xno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo (Desktop) E6600 and Core 2 Quad Q9450. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1, DDR2, DDR3DDR1, DDR2, DDR3

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 E6600 0.58
Core 2 Quad Q9450 1.38
+138%

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 E6600 919
Core 2 Quad Q9450 2186
+138%

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 E6600 261
Core 2 Quad Q9450 344
+31.8%

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 E6600 421
Core 2 Quad Q9450 952
+126%

Gaming performance

Pros & cons summary


Performance score 0.58 1.38
Physical cores 2 4
Threads 2 4
Chip lithography 65 nm 45 nm
Power consumption (TDP) 65 Watt 95 Watt

Core 2 Duo E6600 has 46.2% lower power consumption.

Core 2 Quad Q9450, on the other hand, has a 137.9% higher aggregate performance score, 100% more physical cores and 100% more threads, and a 44.4% more advanced lithography process.

The Core 2 Quad Q9450 is our recommended choice as it beats the Core 2 Duo E6600 in performance tests.


Should you still have questions on choice between Core 2 Duo E6600 and Core 2 Quad Q9450, ask them in Comments section, and we shall answer.

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Intel Core 2 Duo E6600
Core 2 Duo E6600
Intel Core 2 Quad Q9450
Core 2 Quad Q9450

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Community ratings

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


3.2 438 votes

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Questions & comments

Here you can ask a question about Core 2 Duo E6600 or Core 2 Quad Q9450, agree or disagree with our judgements, or report an error or mismatch.