Core 2 Extreme X6800 vs Core 2 Quad Q6600

Comparing Core 2 Quad (Desktop) Q6600 and Core 2 Extreme (Desktop) X6800 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2387	2727
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Desktop processor
Series	Core 2 Quad (Desktop)	Core 2 Extreme (Desktop)
Power efficiency	1.04	0.87
Architecture codename	Kentsfield (2007)	Conroe (2006−2007)
Release date	no data	no data

Detailed specifications

Core 2 Quad (Desktop) Q6600 and Core 2 Extreme (Desktop) X6800 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)	2 (Dual-core)
Threads	4	2
Boost clock speed	2.4 GHz	2.93 GHz
Bus rate	1066 MHz	1066 MHz
L1 cache	64K (per core)	64K (per core)
L2 cache	8 MB (shared)	4 MB (shared)
L3 cache	0 KB	0 KB
Chip lithography	65 nm	65 nm
Die size	2x 143 mm²	143 mm²
Maximum case temperature (TCase)	71 °C	60 °C
Number of transistors	582 million	291 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Core 2 Quad (Desktop) Q6600 and Core 2 Extreme (Desktop) X6800 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 configuration	1	1
Socket	775	775
Power consumption (TDP)	105 Watt	75 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Quad (Desktop) Q6600 and Core 2 Extreme (Desktop) X6800. 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 Quad (Desktop) Q6600 and Core 2 Extreme (Desktop) X6800. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

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 Quad Q6600 1.15
+66.7%

Core 2 Extreme X6800 0.69

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 Q6600 1823
+66.5%

Core 2 Extreme X6800 1095

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 Quad Q6600 2460

Core 2 Extreme X6800 3000
+22%

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 Quad Q6600 8800
+54.4%

Core 2 Extreme X6800 5700

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 Quad Q6600 3547
+38.1%

Core 2 Extreme X6800 2568