i7-990X Extreme Edition vs i7-7740X

Primary details

Comparing Core i7-7740X and Core i7-990X Extreme Edition processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1101	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.31	no data
Market segment	Desktop processor	Desktop processor
Series	Core i7 (Desktop)	Intel Core i7EE
Power efficiency	5.12	no data
Architecture codename	Kaby Lake-X (2017)	Westmere (2010−2011)
Release date	30 May 2017 (7 years ago)	13 February 2011 (13 years ago)
Launch price (MSRP)	$339	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-7740X and Core i7-990X Extreme Edition 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	4 (Quad-Core)	6 (Hexa-Core)
Threads	8	12
Base clock speed	4.3 GHz	no data
Boost clock speed	4.5 GHz	3.46 GHz
Bus type	DMI 3.0	QPI
Bus rate	4 × 8 GT/s	6.4 GT/s
Multiplier	no data	26
L1 cache	256 KB	no data
L2 cache	1 MB	1.5 MB
L3 cache	8 MB (shared)	12 MB
Chip lithography	14 nm	32 nm
Die size	no data	239 mm2
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	72 °C	no data
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	-

Compatibility

Information on Core i7-7740X and Core i7-990X Extreme Edition 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	no data
Power consumption (TDP)	112 Watt	130 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-7740X and Core i7-990X Extreme Edition. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	no data
AES-NI	+	+
AVX	+	-
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	-

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-7740X and Core i7-990X Extreme Edition are enumerated here.

AMD-V	+	-
VT-d	+	no data
VT-x	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-7740X and Core i7-990X Extreme Edition. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	no data
Maximum memory size	64 GB	24 GB
Max memory channels	2	no data
Maximum memory bandwidth	42.671 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

HD 630

no data

Peripherals

Specifications and connection of peripherals supported by Core i7-7740X and Core i7-990X Extreme Edition.

PCIe version	3.0	no data
PCI Express lanes	16	no data

Pros & cons summary

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Recency	30 May 2017	13 February 2011
Physical cores	4	6
Threads	8	12
Chip lithography	14 nm	32 nm
Power consumption (TDP)	112 Watt	130 Watt

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Should you still have questions on choice between Core i7-7740X and Core i7-990X Extreme Edition, ask them in Comments section, and we shall answer.

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