Athlon 64 X2 4400+ vs Core 2 Duo E6600

Comparing Core 2 Duo (Desktop) E6600 and Athlon 64 X2 (Desktop) 4400+ processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2823	2980
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Desktop processor
Series	Core 2 Duo (Desktop)	2x Athlon 64 (Desktop)
Power efficiency	0.84	0.61
Architecture codename	Conroe (2006−2007)	Windsor (2006−2007)
Release date	no data	no data

Detailed specifications

Core 2 Duo (Desktop) E6600 and Athlon 64 X2 (Desktop) 4400+ 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	2.4 GHz	2.2 GHz
Bus rate	1066 MHz	1000 MHz
L1 cache	64 KB	256K
L2 cache	4 MB	512K
L3 cache	0 KB	0 KB
Chip lithography	65 nm	90 nm
Die size	143 mm²	220 mm²
Number of transistors	291 million	233 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Core 2 Duo (Desktop) E6600 and Athlon 64 X2 (Desktop) 4400+ 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	939
Power consumption (TDP)	65 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo (Desktop) E6600 and Athlon 64 X2 (Desktop) 4400+. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)

no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo (Desktop) E6600 and Athlon 64 X2 (Desktop) 4400+. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR1, DDR2, DDR3

no data

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 Duo E6600 0.58
+38.1%

Athlon 64 X2 4400+ 0.42

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 Duo E6600 919
+36.1%

Athlon 64 X2 4400+ 675

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 Duo E6600 2052
+25.2%

Athlon 64 X2 4400+ 1639