Core i3-2340UE vs Core 2 Duo T6400

Primary details

Comparing Core 2 Duo T6400 and Core i3-2340UE processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	2775
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core 2 Duo	Intel Core i3
Power efficiency	no data	3.43
Architecture codename	Penryn (2008−2011)	Sandy Bridge (2011−2013)
Release date	1 January 2009 (15 years ago)	1 June 2011 (13 years ago)
Launch price (MSRP)	no data	$250

Detailed specifications

Core 2 Duo T6400 and Core i3-2340UE 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	2 GHz	no data
Boost clock speed	2 GHz	1.3 GHz
Bus type	no data	DMI 2.0
Bus rate	800 MHz	4 × 5 GT/s
Multiplier	no data	13
L1 cache	no data	128 KB
L2 cache	2 MB	512 KB
L3 cache	2 MB L2 Cache	3 MB (shared)
Chip lithography	45 nm	32 nm
Die size	no data	149 mm2
Maximum core temperature	105 °C	no data
Number of transistors	no data	624 million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	1V-1.25V	no data

Compatibility

Information on Core 2 Duo T6400 and Core i3-2340UE 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	no data	1 (Uniprocessor)
Socket	PGA478	Intel BGA1023
Power consumption (TDP)	35 Watt	17 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo T6400 and Core i3-2340UE. You'll probably need this information if you require some particular technology.

FMA	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Demand Based Switching	-	no data

Security technologies

Core 2 Duo T6400 and Core i3-2340UE 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 T6400 and Core i3-2340UE are enumerated here.

VT-x

-

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo T6400 and Core i3-2340UE. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	no data	DDR3
Maximum memory size	no data	16 GB
Max memory channels	no data	2
Maximum memory bandwidth	no data	21.335 GB/s
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

Intel HD Graphics 3000

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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Recency	1 January 2009	1 June 2011
Threads	2	4
Chip lithography	45 nm	32 nm
Power consumption (TDP)	35 Watt	17 Watt

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Should you still have questions on choice between Core 2 Duo T6400 and Core i3-2340UE, ask them in Comments section, and we shall answer.

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