Core 2 Quad Q9550 vs Core 2 Extreme QX6850

VS

Aggregate performance score

Core 2 Extreme QX6850
2007
4 cores / 4 threads, 130 Watt
1.44
Core 2 Quad Q9550
2008
4 cores / 4 threads, 95 Watt
1.47
+2.1%

Core 2 Quad Q9550 outperforms Core 2 Extreme QX6850 by a minimal 2% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Extreme (Desktop) QX6850 and Core 2 Quad (Desktop) Q9550 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking21882170
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorDesktop processor
SeriesCore 2 Extreme (Desktop)Core 2 Quad (Desktop)
Power efficiency1.051.46
Architecture codenameKentsfield (2007)Yorkfield (2007−2009)
Release dateno datano data

Detailed specifications

Core 2 Extreme (Desktop) QX6850 and Core 2 Quad (Desktop) Q9550 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
Boost clock speed3 GHz2.83 GHz
Bus rate1333 MHz1333 MHz
L1 cache64K (per core)64K (per core)
L2 cache8 MB (shared)12288 KB
L3 cache0 KB0 KB
Chip lithography65 nm45 nm
Die size2x 143 mm22x 107 mm2
Maximum case temperature (TCase)64 °C71 °C
Number of transistors582 million820 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier+-

Compatibility

Information on Core 2 Extreme (Desktop) QX6850 and Core 2 Quad (Desktop) Q9550 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)130 Watt95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Extreme (Desktop) QX6850 and Core 2 Quad (Desktop) Q9550. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Extreme (Desktop) QX6850 and Core 2 Quad (Desktop) Q9550. 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 Extreme QX6850 1.44
Core 2 Quad Q9550 1.47
+2.1%

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 Extreme QX6850 2292
Core 2 Quad Q9550 2338
+2%

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 Extreme QX6850 3095
Core 2 Quad Q9550 3106
+0.4%

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 Extreme QX6850 10990
+1.5%
Core 2 Quad Q9550 10825

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 Extreme QX6850 4450
+5.2%
Core 2 Quad Q9550 4230

Cinebench 11.5 64-bit multi-core

Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.

Core 2 Extreme QX6850 3
Core 2 Quad Q9550 3

Gaming performance

Pros & cons summary


Performance score 1.44 1.47
Chip lithography 65 nm 45 nm
Power consumption (TDP) 130 Watt 95 Watt

Core 2 Quad Q9550 has a 2.1% higher aggregate performance score, a 44.4% more advanced lithography process, and 36.8% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between Core 2 Extreme QX6850 and Core 2 Quad Q9550.


Should you still have questions on choice between Core 2 Extreme QX6850 and Core 2 Quad Q9550, ask them in Comments section, and we shall answer.

Vote for your favorite

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Intel Core 2 Extreme QX6850
Core 2 Extreme QX6850
Intel Core 2 Quad Q9550
Core 2 Quad Q9550

Similar processor comparisons

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Community ratings

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


3.4 52 votes

Rate Core 2 Extreme QX6850 on a scale of 1 to 5:

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4.1 1876 votes

Rate Core 2 Quad Q9550 on a scale of 1 to 5:

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Questions & comments

Here you can ask a question about Core 2 Extreme QX6850 or Core 2 Quad Q9550, agree or disagree with our judgements, or report an error or mismatch.