Athlon II X4 640 vs Core 2 Duo E8300

Primary details

Comparing Core 2 Duo E8300 and Athlon II X4 640 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2767	2198
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	2.92
Market segment	Desktop processor	Desktop processor
Power efficiency	0.91	1.41
Architecture codename	Wolfdale (2008−2010)	Propus (2009−2011)
Release date	April 2008 (16 years ago)	11 May 2010 (14 years ago)
Launch price (MSRP)	no data	$80

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core 2 Duo E8300 and Athlon II X4 640 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)	4 (Quad-Core)
Threads	2	4
Base clock speed	2.83 GHz	3 GHz
Boost clock speed	2.83 GHz	3 GHz
Bus rate	1333 MHz	no data
L1 cache	64K (per core)	128 KB (per core)
L2 cache	6 MB (shared)	512 KB (per core)
L3 cache	0 KB	0 KB
Chip lithography	45 nm	45 nm
Die size	107 mm2	169 mm2
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	410 million	300 million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	0.85V-1.3625V	no data

Compatibility

Information on Core 2 Duo E8300 and Athlon II X4 640 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	AM3
Power consumption (TDP)	65 Watt	95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo E8300 and Athlon II X4 640. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	-
Demand Based Switching	-	no data
FSB parity	-	no data

Security technologies

Core 2 Duo E8300 and Athlon II X4 640 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo E8300 and Athlon II X4 640 are enumerated here.

VT-d	+	no data
VT-x	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E8300 and Athlon II X4 640. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR1, DDR2, DDR3

DDR3

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo E8300 and Athlon II X4 640.

PCIe version

no data

2.0

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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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.

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Pros & cons summary

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Performance score	0.64	1.44
Physical cores	2	4
Threads	2	4
Power consumption (TDP)	65 Watt	95 Watt

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Should you still have questions on choice between Core 2 Duo E8300 and Athlon II X4 640, ask them in Comments section, and we shall answer.

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