i7-640M vs i7-7800X

Primary details

Comparing Core i7-7800X and Core i7-640M processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	910	2242
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	3.55	no data
Market segment	Desktop processor	Laptop
Series	Intel Core i7	Intel Core i7
Power efficiency	5.49	3.51
Architecture codename	Skylake (server) (2017−2019)	Arrandale (2010−2011)
Release date	30 May 2017 (7 years ago)	13 September 2010 (14 years ago)
Launch price (MSRP)	$383	$346

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-7800X and Core i7-640M 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	6 (Hexa-Core)	2 (Dual-core)
Threads	12	4
Base clock speed	3.5 GHz	2.8 GHz
Boost clock speed	4 GHz	3.46 GHz
Bus type	DMI 3.0	DMI 1.0
Bus rate	4 × 8 GT/s	1 × 2.5 GT/s
Multiplier	35	21
L1 cache	384 KB	128 KB
L2 cache	6 MB	512 KB
L3 cache	8.25 MB (shared)	4 MB (shared)
Chip lithography	14 nm	32 nm
Die size	no data	81+114 mm2
Maximum core temperature	100 °C	105 °C
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	no data	382 Million
64 bit support	+	+
Windows 11 compatibility	+	-
Unlocked multiplier	+	-

Compatibility

Information on Core i7-7800X and Core i7-640M 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 (Uniprocessor)	1 (Uniprocessor)
Socket	FCLGA2066	BGA1288,PGA988
Power consumption (TDP)	140 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-7800X and Core i7-640M. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512	Intel® SSE4.1, Intel® SSE4.2
AES-NI	+	+
FMA	-	+
AVX	+	-
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	+
Hyper-Threading Technology	+	+
TSX	+	-
Idle States	no data	+
Thermal Monitoring	-	+
Flex Memory Access	no data	+
PAE	no data	36 Bit
FDI	no data	+
Fast Memory Access	no data	+
Status	Discontinued	Discontinued

Security technologies

Core i7-7800X and Core i7-640M technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	+
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-7800X and Core i7-640M are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-7800X and Core i7-640M. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2400	DDR3
Maximum memory size	128 GB	8 GB
Max memory channels	4	2
Maximum memory bandwidth	85.33 GB/s	17.051 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	N/A	Intel® HD Graphics for Previous Generation Intel® Processors
Clear Video	no data	+
Clear Video HD	no data	+
Graphics max frequency	no data	766 MHz

Graphics interfaces

Available interfaces and connections of Core i7-7800X and Core i7-640M integrated GPUs.

Number of displays supported

no data

2

Peripherals

Specifications and connection of peripherals supported by Core i7-7800X and Core i7-640M.

PCIe version	3.0	2.0
PCI Express lanes	28	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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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.

Pros & cons summary

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Performance score	8.44	1.35
Recency	30 May 2017	13 September 2010
Physical cores	6	2
Threads	12	4
Chip lithography	14 nm	32 nm
Power consumption (TDP)	140 Watt	35 Watt

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Should you still have questions on choice between Core i7-7800X and Core i7-640M, ask them in Comments section, and we shall answer.

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