Atom x7-Z8700 vs Core i7-3820

Primary details

Comparing Core i7-3820 and Atom x7-Z8700 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1405	2470
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.32	no data
Market segment	Desktop processor	Laptop
Series	no data	7x Intel Atom
Architecture codename	Sandy Bridge-E (2011−2013)	Cherry Trail (2016)
Release date	February 2012 (12 years ago)	2 March 2015 (9 years ago)
Launch price (MSRP)	$400	no data
Current price	$310 (0.8x MSRP)	$377

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-3820 and Atom x7-Z8700 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)	4 (Quad-Core)
Threads	8	4
Base clock speed	3.6 GHz	1.6 GHz
Boost clock speed	3.8 GHz	2.4 GHz
L1 cache	64 KB (per core)	no data
L2 cache	256 KB (per core)	2 MB
L3 cache	10240 KB (shared)	0 KB
Chip lithography	32 nm	14 nm
Die size	294 mm2	no data
Maximum core temperature	67 °C	90 °C
Maximum case temperature (TCase)	67 °C	no data
Number of transistors	1270 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on Core i7-3820 and Atom x7-Z8700 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	FCLGA2011	UTFCBGA1380
Power consumption (TDP)	130 Watt	no data

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-3820 and Atom x7-Z8700. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2, Intel® AVX	no data
AES-NI	+	+
AVX	+	no data
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Thermal Monitoring	+	no data
Smart Response	+	no data
Demand Based Switching	-	no data
Status	Discontinued	Discontinued

Security technologies

Core i7-3820 and Atom x7-Z8700 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	no data
Secure Boot	no data	+
Identity Protection	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-3820 and Atom x7-Z8700 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-3820 and Atom x7-Z8700. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	64.23 GB	8 GB
Max memory channels	4	2
Maximum memory bandwidth	51.2 GB/s	25.6 GB/s
ECC memory support	-	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	Intel HD Graphics
Max video memory	no data	8 GB
Graphics max frequency	no data	600 MHz
Execution Units	no data	16

Graphics interfaces

Available interfaces and connections of Core i7-3820 and Atom x7-Z8700 integrated GPUs.

Number of displays supported

no data

3

Graphics image quality

Maximum display resolutions supported by Core i7-3820 and Atom x7-Z8700 integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	no data	3840x2160
Max resolution over eDP	no data	2560x1600

Peripherals

Specifications and connection of peripherals supported by Core i7-3820 and Atom x7-Z8700.

PCIe version	2.0	2.0
PCI Express lanes	40	2
USB revision	no data	3.0
Number of USB ports	no data	3

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.

Core i7-3820 outperforms Atom x7-Z8700 by 333% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	3.72	0.86
Threads	8	4
Chip lithography	32 nm	14 nm

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Should you still have questions on choice between Core i7-3820 and Atom x7-Z8700, ask them in Comments section, and we shall answer.

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