i9-9800X vs i7-7740X

Primary details

Comparing Core i7-7740X and Core i9-9800X processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1056	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.65	no data
Market segment	Desktop processor	Desktop processor
Series	Core i7 (Desktop)	no data
Architecture codename	Kaby Lake-X (2017)	Skylake-X (2018)
Release date	30 May 2017 (7 years ago)	October 2018 (5 years ago)
Launch price (MSRP)	$339	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-7740X and Core i9-9800X 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)	8 (Octa-Core)
Threads	8	16
Base clock speed	4.3 GHz	no data
Boost clock speed	4.5 GHz	3.8 GHz
Bus type	DMI 3.0	no data
Bus rate	4 × 8 GT/s	no data
L1 cache	256 KB	64K (per core)
L2 cache	1 MB	1 MB (per core)
L3 cache	8 MB	16.5 MB (shared)
Chip lithography	14 nm	14 nm
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	72 °C	72 °C
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	+

Compatibility

Information on Core i7-7740X and Core i9-9800X 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
Socket	FCLGA2066	2066
Power consumption (TDP)	112 Watt	165 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-7740X and Core i9-9800X. 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	+	+
Status	Discontinued	no data

Security technologies

Core i7-7740X and Core i9-9800X technologies aimed at improving security, for example, by protecting against hacks.

TXT

no data

+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-7740X and Core i9-9800X are enumerated here.

AMD-V	+	-
VT-d	+	+
VT-x	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-7740X and Core i9-9800X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR4
Maximum memory size	64 GB	no data
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 i9-9800X.

PCIe version	3.0	no data
PCI Express lanes	16	no data

Pros & cons summary

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Physical cores	4	8
Threads	8	16
Power consumption (TDP)	112 Watt	165 Watt

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Should you still have questions on choice between Core i7-7740X and Core i9-9800X, ask them in Comments section, and we shall answer.

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