Core i7-7820EQ vs Core 2 Duo E6400

Primary details

Comparing Core 2 Duo E6400 and Core i7-7820EQ processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	1254
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Laptop
Series	no data	Intel Core i7
Power efficiency	no data	9.99
Architecture codename	Conroe (2006−2007)	Kaby Lake (2016−2019)
Release date	July 2006 (18 years ago)	3 January 2017 (7 years ago)
Launch price (MSRP)	no data	$378

Detailed specifications

Core 2 Duo E6400 and Core i7-7820EQ 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	8
Base clock speed	2.13 GHz	no data
Boost clock speed	2.13 GHz	3.1 GHz
Bus type	no data	DMI 3.0
Bus rate	1066 MHz	8 GT/s
Multiplier	no data	31
L1 cache	64 KB	256 KB
L2 cache	2 MB	1 MB
L3 cache	0 KB	8 MB
Chip lithography	65 nm	14 nm
Die size	143 mm2	no data
Maximum core temperature	61 °C	no data
Number of transistors	291 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	0.85V-1.5V	no data

Compatibility

Information on Core 2 Duo E6400 and Core i7-7820EQ 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,PLGA775	no data
Power consumption (TDP)	65 Watt	45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo E6400 and Core i7-7820EQ. You'll probably need this information if you require some particular technology.

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

Security technologies

Core 2 Duo E6400 and Core i7-7820EQ 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 E6400 and Core i7-7820EQ are enumerated here.

VT-d	no data	+
VT-x	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E6400 and Core i7-7820EQ. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR3L-1600
Maximum memory size	no data	64 GB
Max memory channels	no data	2
Maximum memory bandwidth	no data	34.134 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

Intel HD Graphics 630

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo E6400 and Core i7-7820EQ.

PCIe version	no data	3.0
PCI Express lanes	no data	16

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	4
Threads	2	8
Chip lithography	65 nm	14 nm
Power consumption (TDP)	65 Watt	45 Watt

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Should you still have questions on choice between Core 2 Duo E6400 and Core i7-7820EQ, ask them in Comments section, and we shall answer.

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