Core 2 Duo E4400 vs A6-7400K

Primary details

Comparing A6-7400K and Core 2 Duo E4400 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2453	2944
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Desktop processor
Power efficiency	1.50	0.66
Architecture codename	Kaveri (2014−2015)	Allendale (2006−2009)
Release date	31 July 2014 (10 years ago)	July 2007 (17 years ago)

Detailed specifications

A6-7400K and Core 2 Duo E4400 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	3.5 GHz	2 GHz
Boost clock speed	3.9 GHz	2 GHz
Bus rate	no data	800 MHz
L1 cache	128 KB	64 KB
L2 cache	1024 KB	2 MB
L3 cache	no data	0 KB
Chip lithography	28 nm	65 nm
Die size	245 mm2	111 mm2
Maximum core temperature	70 °C	L2=61 °C, M0=73 °C
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	2,411 million	167 million
64 bit support	+	+
Windows 11 compatibility	no data	-
Unlocked multiplier	+	-
VID voltage range	no data	0.85V-1.5V

Compatibility

Information on A6-7400K and Core 2 Duo E4400 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	FM2+	LGA775
Power consumption (TDP)	65 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by A6-7400K and Core 2 Duo E4400. You'll probably need this information if you require some particular technology.

AES-NI	+	-
FMA	+	-
AVX	+	-
FRTC	+	-
FreeSync	+	-
TrueAudio	+	-
PowerNow	+	-
PowerGating	+	-
Out-of-band client management	+	-
VirusProtect	+	-
HSA	+	-
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

A6-7400K and Core 2 Duo E4400 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 A6-7400K and Core 2 Duo E4400 are enumerated here.

AMD-V	+	-
VT-x	no data	-
IOMMU 2.0	+	-

Memory specs

Types, maximum amount and channel quantity of RAM supported by A6-7400K and Core 2 Duo E4400. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-1866	DDR1, DDR2, DDR3
Max memory channels	2	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	AMD Radeon R5 Graphics	no data
iGPU core count	4	no data
จำนวนพาธไลน์	256	no data
Enduro	+	-
Switchable graphics	+	-
UVD	+	-
VCE	+	-

Graphics interfaces

Available interfaces and connections of A6-7400K and Core 2 Duo E4400 integrated GPUs.

DisplayPort	+	-
HDMI	+	-

Graphics API support

APIs supported by A6-7400K and Core 2 Duo E4400 integrated GPUs, sometimes API versions are included.

DirectX	DirectX® 12	no data
Vulkan	+	-

Peripherals

Specifications and connection of peripherals supported by A6-7400K and Core 2 Duo E4400.

PCIe version	3.0	no data
PCI Express lanes	16	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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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	1.03	0.45
Chip lithography	28 nm	65 nm

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Should you still have questions on choice between A6-7400K and Core 2 Duo E4400, ask them in Comments section, and we shall answer.

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