Core i5-12400T vs Core 2 Duo T6400

Primary details

Comparing Core 2 Duo T6400 and Core i5-12400T processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	758
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Intel Core 2 Duo	no data
Power efficiency	no data	27.55
Architecture codename	Penryn (2008−2011)	Alder Lake-S (2022)
Release date	1 January 2009 (15 years ago)	January 2022 (2 years ago)

Detailed specifications

Core 2 Duo T6400 and Core i5-12400T 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)	6 (Hexa-Core)
Threads	2	12
Base clock speed	2 GHz	1.8 GHz
Boost clock speed	2 GHz	4.2 GHz
Bus rate	800 MHz	no data
L1 cache	no data	80K (per core)
L2 cache	2 MB	1.25 MB (per core)
L3 cache	2 MB L2 Cache	18 MB (shared)
Chip lithography	45 nm	Intel 7 nm
Die size	no data	163 mm2
Maximum core temperature	105 °C	100 °C
64 bit support	+	+
Windows 11 compatibility	-	+
VID voltage range	1V-1.25V	no data

Compatibility

Information on Core 2 Duo T6400 and Core i5-12400T 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
Socket	PGA478	FCLGA1700
Power consumption (TDP)	35 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo T6400 and Core i5-12400T. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	-	2.0
Hyper-Threading Technology	-	+
TSX	-	+
Idle States	no data	+
Thermal Monitoring	-	+
Demand Based Switching	-	no data
Turbo Boost Max 3.0	no data	-
Deep Learning Boost	-	+

Security technologies

Core 2 Duo T6400 and Core i5-12400T technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	+
Secure Key	no data	+
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo T6400 and Core i5-12400T are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo T6400 and Core i5-12400T. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	no data	DDR5-4800, DDR4-3200
Maximum memory size	no data	128 GB
Max memory channels	no data	2
Maximum memory bandwidth	no data	76.8 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	Intel UHD Graphics 730
Quick Sync Video	-	+
Clear Video HD	no data	+
Graphics max frequency	no data	1.45 GHz
Execution Units	no data	24

Graphics interfaces

Available interfaces and connections of Core 2 Duo T6400 and Core i5-12400T integrated GPUs.

Number of displays supported

no data

4

Graphics image quality

Maximum display resolutions supported by Core 2 Duo T6400 and Core i5-12400T integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	no data	4096 x 2160 @ 60Hz
Max resolution over eDP	no data	5120 x 3200 @ 120Hz
Max resolution over DisplayPort	no data	7680 x 4320 @ 60Hz

Graphics API support

APIs supported by Core 2 Duo T6400 and Core i5-12400T integrated GPUs, sometimes API versions are included.

DirectX	no data	12
OpenGL	no data	4.5

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo T6400 and Core i5-12400T.

PCIe version	no data	5.0 and 4.0
PCI Express lanes	no data	20

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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Physical cores	2	6
Threads	2	12

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Should you still have questions on choice between Core 2 Duo T6400 and Core i5-12400T, ask them in Comments section, and we shall answer.

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