Core 2 Extreme QX9770 vs Core 2 Quad Q9550

VS

Aggregate performance score

Core 2 Quad Q9550
2008
4 cores / 4 threads, 95 Watt
1.47
Core 2 Extreme QX9770
2008
4 cores / 4 threads, 136 Watt
2.90
+97.3%

Core 2 Extreme QX9770 outperforms Core 2 Quad Q9550 by an impressive 97% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Quad (Desktop) Q9550 and Core 2 Extreme QX9770 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking21701666
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorDesktop processor
SeriesCore 2 Quad (Desktop)no data
Power efficiency1.462.02
Architecture codenameYorkfield (2007−2009)Yorkfield (2007−2009)
Release dateno dataMarch 2008 (16 years ago)

Detailed specifications

Core 2 Quad (Desktop) Q9550 and Core 2 Extreme QX9770 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 cores4 (Quad-Core)4 (Quad-Core)
Threads44
Base clock speedno data3.2 GHz
Boost clock speed2.83 GHz3.2 GHz
Bus rate1333 MHz1600 MHz
L1 cache64K (per core)64K (per core)
L2 cache12288 KB12 MB (shared)
L3 cache0 KB0 KB
Chip lithography45 nm45 nm
Die size2x 107 mm22x 107 mm2
Maximum case temperature (TCase)71 °C55 °C
Number of transistors820 million820 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier-+
VID voltage rangeno data0.85V-1.3625V

Compatibility

Information on Core 2 Quad (Desktop) Q9550 and Core 2 Extreme QX9770 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
SocketLGA775LGA775
Power consumption (TDP)95 Watt136 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Quad (Desktop) Q9550 and Core 2 Extreme QX9770. 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 Quad (Desktop) Q9550 and Core 2 Extreme QX9770 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 Quad (Desktop) Q9550 and Core 2 Extreme QX9770 are enumerated here.

VT-xno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Quad (Desktop) Q9550 and Core 2 Extreme QX9770. 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 Quad Q9550 1.47
Core 2 Extreme QX9770 2.90
+97.3%

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 Quad Q9550 2338
Core 2 Extreme QX9770 4611
+97.2%

Gaming performance

Pros & cons summary


Performance score 1.47 2.90
Power consumption (TDP) 95 Watt 136 Watt

Core 2 Quad Q9550 has 43.2% lower power consumption.

Core 2 Extreme QX9770, on the other hand, has a 97.3% higher aggregate performance score.

The Core 2 Extreme QX9770 is our recommended choice as it beats the Core 2 Quad Q9550 in performance tests.


Should you still have questions on choice between Core 2 Quad Q9550 and Core 2 Extreme QX9770, 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 Quad Q9550
Core 2 Quad Q9550
Intel Core 2 Extreme QX9770
Core 2 Extreme QX9770

Similar processor comparisons

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Community ratings

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


4.1 1876 votes

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3.7 241 vote

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Questions & comments

Here you can ask a question about Core 2 Quad Q9550 or Core 2 Extreme QX9770, agree or disagree with our judgements, or report an error or mismatch.