Core 2 Duo E6600 vs Core 2 Extreme X6800

Comparing Core 2 Extreme (Desktop) X6800 and Core 2 Duo (Desktop) E6600 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2727	2822
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Desktop processor
Series	Core 2 Extreme (Desktop)	Core 2 Duo (Desktop)
Power efficiency	0.87	0.84
Architecture codename	Conroe (2006−2007)	Conroe (2006−2007)
Release date	no data	no data

Detailed specifications

Core 2 Extreme (Desktop) X6800 and Core 2 Duo (Desktop) E6600 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	2 (Dual-core)	2 (Dual-core)
Threads	2	2
Boost clock speed	2.93 GHz	2.4 GHz
Bus rate	1066 MHz	1066 MHz
L1 cache	64K (per core)	64 KB
L2 cache	4 MB (shared)	4 MB
L3 cache	0 KB	0 KB
Chip lithography	65 nm	65 nm
Die size	143 mm²	143 mm²
Maximum case temperature (TCase)	60 °C	no data
Number of transistors	291 million	291 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Core 2 Extreme (Desktop) X6800 and Core 2 Duo (Desktop) E6600 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)	75 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Extreme (Desktop) X6800 and Core 2 Duo (Desktop) E6600. 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) X6800 and Core 2 Duo (Desktop) E6600. 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 Extreme X6800 0.69
+19%

Core 2 Duo E6600 0.58

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 X6800 1095
+19.2%

Core 2 Duo E6600 919

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 X6800 3000
+21.9%

Core 2 Duo E6600 2462

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 X6800 5700
+21.3%

Core 2 Duo E6600 4698

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 X6800 2568
+25.1%

Core 2 Duo E6600 2052