Core 2 Quad Q9550 vs Core 2 Extreme QX6850

Place in performance ranking	2033	2014
Place by popularity	not in top-100	not in top-100
Value for money	2.69	2.80
Market segment	Desktop processor	Desktop processor
Series	Core 2 Extreme (Desktop)	Core 2 Quad (Desktop)
Architecture codename	Kentsfield (2007)	Yorkfield (2007−2009)
Release date	no data	no data
Current price	$385	$54

Value for money

Performance per price, higher is better.

Core 2 Quad Q9550 has 4% better value for money than Core 2 Extreme QX6850.

Technical specs

Core 2 Extreme QX6850 and Core 2 Quad 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 cores	4 (Quad-Core)	4 (Quad-Core)
Threads	4	4
Boost clock speed	3 GHz	2.83 GHz
Bus support	1333 MHz	1333 MHz
L2 cache	no data	12288 KB
Chip lithography	65 nm	45 nm
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on Core 2 Extreme QX6850 and Core 2 Quad 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.

Socket	no data	LGA775
Power consumption (TDP)	130 Watt	95 Watt

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Extreme QX6850 and Core 2 Quad Q9550. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

no data

DDR1,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 1.48

Core 2 Quad Q9550 1.51
+2%

Core 2 Quad Q9550 outperforms Core 2 Extreme QX6850 by 2% based on our aggregated benchmark results.

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.

Benchmark coverage: 68%

Core 2 Extreme QX6850 2292

Core 2 Quad Q9550 2339
+2.1%

Core 2 Quad Q9550 outperforms Core 2 Extreme QX6850 by 2% in Passmark.

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.

Benchmark coverage: 20%

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.

Benchmark coverage: 19%

Core 2 Extreme QX6850 10990
+1.5%

Core 2 Quad Q9550 10825

Core 2 Extreme QX6850 outperforms Core 2 Quad Q9550 by 2% in Cinebench 10 32-bit multi-core.

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.

Benchmark coverage: 19%

Core 2 Extreme QX6850 4450
+5.2%

Core 2 Quad Q9550 4230

Core 2 Extreme QX6850 outperforms Core 2 Quad Q9550 by 5% in 3DMark06 CPU.

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.

Benchmark coverage: 17%

Core 2 Extreme QX6850 3

Core 2 Quad Q9550 3