Core i5-2580M vs Core 2 Duo E8400

Primary details

Comparing Core 2 Duo E8400 and Core i5-2580M processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2668	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Laptop
Series	no data	Intel Core i5
Power efficiency	1.07	no data
Architecture codename	Wolfdale (2008−2010)	Sandy Bridge (2011−2013)
Release date	1 January 2008 (16 years ago)	no data (2024 years ago)

Detailed specifications

Core 2 Duo E8400 and Core i5-2580M 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	4
Base clock speed	3 GHz	no data
Boost clock speed	3 GHz	2.8 GHz
Bus type	no data	DMI 2.0
Bus rate	1333 MHz	4 × 5 GT/s
Multiplier	no data	28
L1 cache	64 KB (per core)	128 KB
L2 cache	6 MB (shared)	512 KB
L3 cache	0 KB	3 MB
Chip lithography	45 nm	32 nm
Die size	104 mm2	149 mm2
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	410 million	624 Million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	0.85V-1.3625V	no data

Compatibility

Information on Core 2 Duo E8400 and Core i5-2580M 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 (Uniprocessor)
Socket	LGA775	no data
Power consumption (TDP)	65 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo E8400 and Core i5-2580M. You'll probably need this information if you require some particular technology.

AES-NI	-	+
FMA	-	+
AVX	-	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
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 E8400 and Core i5-2580M technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo E8400 and Core i5-2580M are enumerated here.

VT-d	+	+
VT-x	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E8400 and Core i5-2580M. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR3-1333
Maximum memory size	no data	16 GB
Max memory channels	no data	2
Maximum memory bandwidth	no data	21.335 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

Intel HD Graphics 3000

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo E8400 and Core i5-2580M.

PCIe version

2.0

no data

Pros & cons summary

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Threads	2	4
Chip lithography	45 nm	32 nm
Power consumption (TDP)	65 Watt	35 Watt

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Should you still have questions on choice between Core 2 Duo E8400 and Core i5-2580M, ask them in Comments section, and we shall answer.

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