Celeron N2840 vs Core i7-7820X

Primary details

Comparing Core i7-7820X and Celeron N2840 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	656	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	8.55	no data
Market segment	Desktop processor	Laptop
Series	Intel Core i7	Intel Celeron
Architecture codename	Skylake (server) (2017−2019)	Bay Trail-M (2013−2014)
Release date	26 June 2017 (7 years ago)	22 May 2014 (10 years ago)
Launch price (MSRP)	$599	no data
Current price	$341 (0.6x MSRP)	$287

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-7820X and Celeron N2840 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	8 (Octa-Core)	2 (Dual-core)
Threads	16	2
Base clock speed	3.6 GHz	2.16 GHz
Boost clock speed	4.5 GHz	2.58 GHz
Bus support	4 × 8 GT/s	no data
L1 cache	64 KB (per core)	56K (per core)
L2 cache	1 MB (per core)	512K (per core)
L3 cache	11 MB (shared)	0 KB
Chip lithography	14 nm	22 nm
Maximum core temperature	99 °C	100 °C
Maximum case temperature (TCase)	72 °C	no data
64 bit support	+	+
Windows 11 compatibility	+	-
Unlocked multiplier	Yes	No

Compatibility

Information on Core i7-7820X and Celeron N2840 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	FCLGA2066	FCBGA1170
Power consumption (TDP)	140 Watt	7.5 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-7820X and Celeron N2840. 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	no data
AES-NI	+	-
AVX	+	no data
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	-
Hyper-Threading Technology	+	-
TSX	+	no data
Idle States	no data	+
Smart Connect	no data	+
Turbo Boost Max 3.0	+	no data
Status	Discontinued	Discontinued

Security technologies

Core i7-7820X and Celeron N2840 technologies aimed at improving security, for example, by protecting against hacks.

EDB	+	+
Secure Key	no data	+
Anti-Theft	no data	-

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-7820X and Celeron N2840 are enumerated here.

VT-d	+	-
VT-x	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-7820X and Celeron N2840. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR3
Maximum memory size	128 GB	8 GB
Max memory channels	4	2
Maximum memory bandwidth	85 GB/s	21.32 GB/s
ECC memory support	-	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	N/A	Intel® HD Graphics for Intel Atom® Processor Z3700 Series
Quick Sync Video	no data	+
Graphics max frequency	no data	792 MHz

Graphics interfaces

Available interfaces and connections of Core i7-7820X and Celeron N2840 integrated GPUs.

Number of displays supported

no data

2

Peripherals

Specifications and connection of peripherals supported by Core i7-7820X and Celeron N2840.

PCIe version	3.0	2.0
PCI Express lanes	28	4
USB revision	no data	3.0 and 2.0
Total number of SATA ports	no data	2
Number of USB ports	no data	5

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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Recency	26 June 2017	22 May 2014
Physical cores	8	2
Threads	16	2
Chip lithography	14 nm	22 nm
Power consumption (TDP)	140 Watt	7 Watt

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Should you still have questions on choice between Core i7-7820X and Celeron N2840, ask them in Comments section, and we shall answer.

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