Core 2 Duo E6400 vs Pentium E6800

Primary details

Comparing Pentium E6800 and Core 2 Duo E6400 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2661	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Desktop processor
Power efficiency	1.07	no data
Architecture codename	Wolfdale (2008−2010)	Conroe (2006−2007)
Release date	29 August 2010 (14 years ago)	July 2006 (18 years ago)
Launch price (MSRP)	$831	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Pentium E6800 and Core 2 Duo E6400 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
Base clock speed	3.33 GHz	2.13 GHz
Boost clock speed	0.33 GHz	2.13 GHz
Bus rate	no data	1066 MHz
L1 cache	64 KB (per core)	64 KB
L2 cache	2 MB (shared)	2 MB
L3 cache	0 KB	0 KB
Chip lithography	45 nm	65 nm
Die size	82 mm2	143 mm2
Maximum core temperature	74 °C	61 °C
Number of transistors	228 million	291 million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	0.85V-1.3625V	0.85V-1.5V

Compatibility

Information on Pentium E6800 and Core 2 Duo E6400 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	LGA775	LGA775,PLGA775
Power consumption (TDP)	65 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium E6800 and Core 2 Duo E6400. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE2, Intel® SSE3, Intel® SSSE3	no data
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	-
Idle States	+	+
Thermal Monitoring	+	+
Demand Based Switching	-	-
FSB parity	no data	-

Security technologies

Pentium E6800 and Core 2 Duo E6400 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	-
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium E6800 and Core 2 Duo E6400 are enumerated here.

VT-d	-	no data
VT-x	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium E6800 and Core 2 Duo E6400. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR1, DDR2, DDR3

DDR1, DDR2, DDR3

Peripherals

Specifications and connection of peripherals supported by Pentium E6800 and Core 2 Duo E6400.

PCIe version

2.0

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.

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Pros & cons summary

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Chip lithography

45 nm

65 nm

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