Celeron N2840 vs i7-4578U

Primary details

Comparing Core i7-4578U and Celeron N2840 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1936	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core i7	Intel Celeron
Power efficiency	6.62	no data
Architecture codename	Haswell (2013−2015)	Bay Trail-M (2013−2014)
Release date	21 July 2014 (10 years ago)	22 May 2014 (10 years ago)
Launch price (MSRP)	$426	no data

Detailed specifications

Core i7-4578U 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	2 (Dual-core)	2 (Dual-core)
Threads	4	2
Base clock speed	3 GHz	2.16 GHz
Boost clock speed	3.5 GHz	2.58 GHz
Bus rate	5 GT/s	no data
L1 cache	128 KB	56K (per core)
L2 cache	512 KB	512K (per core)
L3 cache	4 MB	0 KB
Chip lithography	22 nm	22 nm
Die size	181 mm2	no data
Maximum core temperature	100 °C	100 °C
Number of transistors	1300 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Core i7-4578U 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	FCBGA1168	FCBGA1170
Power consumption (TDP)	28 Watt	7.5 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-4578U 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	no data
AES-NI	+	-
AVX	+	-
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	-
Hyper-Threading Technology	+	-
Idle States	+	+
Thermal Monitoring	+	-
Smart Connect	no data	+
FDI	+	no data

Security technologies

Core i7-4578U and Celeron N2840 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	+
Secure Key	+	+
Identity Protection	+	-
Anti-Theft	no data	-

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-4578U and Celeron N2840 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-4578U and Celeron N2840. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	16 GB	8 GB
Max memory channels	2	2
Maximum memory bandwidth	25.6 GB/s	21.32 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel Iris Graphics 5100	Intel® HD Graphics for Intel Atom® Processor Z3700 Series
Max video memory	2 GB	no data
Quick Sync Video	+	+
Clear Video HD	+	-
Graphics max frequency	1.2 GHz	792 MHz
InTru 3D	+	-

Graphics interfaces

Available interfaces and connections of Core i7-4578U and Celeron N2840 integrated GPUs.

Number of displays supported	3	2
eDP	+	no data
DisplayPort	+	-
HDMI	+	-
VGA	+	no data

Graphics image quality

Maximum display resolutions supported by Core i7-4578U and Celeron N2840 integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	3200x2000@60Hz	no data
Max resolution over DisplayPort	3200x2000@60Hz	no data
Max resolution over VGA	N/A	no data

Graphics API support

APIs supported by Core i7-4578U and Celeron N2840 integrated GPUs, sometimes API versions are included.

DirectX	11.2/12	no data
OpenGL	4.3	no data

Peripherals

Specifications and connection of peripherals supported by Core i7-4578U and Celeron N2840.

PCIe version	2	2.0
PCI Express lanes	12	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	21 July 2014	22 May 2014
Threads	4	2
Power consumption (TDP)	28 Watt	7 Watt

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Should you still have questions on choice between Core i7-4578U and Celeron N2840, ask them in Comments section, and we shall answer.

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