Core 2 Duo E4300 vs Core 2 Duo E8400

Primary details

Comparing Core 2 Duo E8400 and Core 2 Duo E4300 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2540	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.86	no data
Market segment	Desktop processor	Desktop processor
Architecture codename	Wolfdale (2008−2010)	Allendale (2006−2009)
Release date	1 January 2008 (16 years ago)	July 2006 (17 years ago)
Current price	$67	$42

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core 2 Duo E8400 and Core 2 Duo E4300 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 GHz	1.8 GHz
Boost clock speed	3 GHz	1.8 GHz
L1 cache	64 KB (per core)	64 KB
L2 cache	6 MB (shared)	2 MB
L3 cache	0 KB	0 KB
Chip lithography	45 nm	65 nm
Die size	104 mm2	111 mm2
Maximum core temperature	72 °C	61 °C
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	410 million	167 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No
VID voltage range	0.85V-1.3625V	0.85V-1.5V

Compatibility

Information on Core 2 Duo E8400 and Core 2 Duo E4300 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
Power consumption (TDP)	65 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo E8400 and Core 2 Duo E4300. You'll probably need this information if you require some particular technology.

AES-NI	-	-
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	-
Idle States	+	+
Thermal Monitoring	+	+
Demand Based Switching	-	-
FSB parity	-	-
Status	Discontinued	Discontinued

Security technologies

Core 2 Duo E8400 and Core 2 Duo E4300 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	-
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo E8400 and Core 2 Duo E4300 are enumerated here.

VT-d	+	no data
VT-x	+	-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E8400 and Core 2 Duo E4300. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR1, DDR2, DDR3

DDR1, DDR2, DDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

no data

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo E8400 and Core 2 Duo E4300.

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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Should you still have questions on choice between Core 2 Duo E8400 and Core 2 Duo E4300, ask them in Comments section, and we shall answer.

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