Celeron N5105 vs i7-840QM

Primary details

Comparing Core i7-840QM and Celeron N5105 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2308	1734
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Intel Core i7	no data
Power efficiency	2.59	24.13
Architecture codename	Clarksfield (2009−2010)	Jasper Lake (2021)
Release date	22 June 2010 (14 years ago)	11 January 2021 (3 years ago)
Launch price (MSRP)	$568	no data

Detailed specifications

Core i7-840QM and Celeron N5105 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	1.86 GHz	2 GHz
Boost clock speed	3.2 GHz	2.9 GHz
Bus type	DMI 1.0	no data
Bus rate	2.5 GT/s	no data
Multiplier	14	no data
L1 cache	256 KB	no data
L2 cache	1 MB	1.5 MB
L3 cache	8 MB (shared)	4 MB
Chip lithography	45 nm	10 nm
Die size	296 mm2	no data
Maximum core temperature	100 °C	105 °C
Number of transistors	774 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Core i7-840QM and Celeron N5105 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	FCPGA988,PGA988	FCBGA1338
Power consumption (TDP)	45 Watt	10 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-840QM and Celeron N5105. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	Intel® SSE4.2
AES-NI	-	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	+	-
Hyper-Threading Technology	+	-
Idle States	+	+
Thermal Monitoring	+	+
Smart Response	no data	-
PAE	36 Bit	no data
GPIO	no data	+
Turbo Boost Max 3.0	no data	-

Security technologies

Core i7-840QM and Celeron N5105 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	-
EDB	+	no data
Identity Protection	-	+
SGX	no data	-
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-840QM and Celeron N5105 are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-840QM and Celeron N5105. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4
Maximum memory size	8 GB	16 GB
Max memory channels	2	2
Maximum memory bandwidth	21.335 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	None	Intel UHD Graphics
Quick Sync Video	-	+
Graphics max frequency	no data	800 MHz
Execution Units	no data	24

Graphics interfaces

Available interfaces and connections of Core i7-840QM and Celeron N5105 integrated GPUs.

Number of displays supported	no data	3
eDP	no data	+
DisplayPort	-	+
HDMI	-	+
MIPI-DSI	no data	+

Graphics image quality

Maximum display resolutions supported by Core i7-840QM and Celeron N5105 integrated GPUs, including resolutions over different interfaces.

4K resolution support	no data	+
Max resolution over HDMI 1.4	no data	4096x2160@60Hz
Max resolution over eDP	no data	4096x2160@60Hz
Max resolution over DisplayPort	no data	4096x2160@60Hz

Graphics API support

APIs supported by Core i7-840QM and Celeron N5105 integrated GPUs, sometimes API versions are included.

DirectX	no data	12
OpenGL	no data	4.5

Peripherals

Specifications and connection of peripherals supported by Core i7-840QM and Celeron N5105.

PCIe version	2	no data
PCI Express lanes	16	8
USB revision	no data	2.0/3.2
Max number of SATA 6 Gb/s Ports	no data	2
Number of USB ports	no data	14
Integrated LAN	no data	-
UART	no data	+

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.

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Pros & cons summary

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Performance score	1.23	2.55
Recency	22 June 2010	11 January 2021
Threads	8	4
Chip lithography	45 nm	10 nm
Power consumption (TDP)	45 Watt	10 Watt

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Should you still have questions on choice between Core i7-840QM and Celeron N5105, ask them in Comments section, and we shall answer.

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