Celeron J3355 vs i7-640M

Primary details

Comparing Core i7-640M and Celeron J3355 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2258	2641
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	0.02
Market segment	Laptop	Desktop processor
Series	Intel Core i7	Intel Celeron
Power efficiency	3.52	7.11
Architecture codename	Arrandale (2010−2011)	Apollo Lake (2014−2016)
Release date	13 September 2010 (14 years ago)	30 August 2016 (8 years ago)
Launch price (MSRP)	$346	$107

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-640M and Celeron J3355 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	2.8 GHz	2 GHz
Boost clock speed	3.46 GHz	2.5 GHz
Bus type	DMI 1.0	no data
Bus rate	1 × 2.5 GT/s	no data
Multiplier	21	20
L1 cache	128 KB	no data
L2 cache	512 KB	1 MB
L3 cache	4 MB (shared)	0 KB
Chip lithography	32 nm	14 nm
Die size	81+114 mm2	no data
Maximum core temperature	105 °C	105 °C
Number of transistors	382 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Core i7-640M and Celeron J3355 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 (Uniprocessor)
Socket	BGA1288,PGA988	FCBGA1296
Power consumption (TDP)	35 Watt	10 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-640M and Celeron J3355. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	no data
AES-NI	+	+
FMA	+	-
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	+	-
Hyper-Threading Technology	+	-
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	no data
Smart Response	no data	-
PAE	36 Bit	no data
GPIO	no data	+
Smart Connect	no data	-
FDI	+	no data
Fast Memory Access	+	no data
HD Audio	no data	+
RST	no data	-

Security technologies

Core i7-640M and Celeron J3355 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-640M and Celeron J3355 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-640M and Celeron J3355. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3, DDR4
Maximum memory size	8 GB	8 GB
Max memory channels	2	2
Maximum memory bandwidth	17.051 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for Previous Generation Intel® Processors	Intel HD Graphics 500
Max video memory	no data	8 GB
Quick Sync Video	-	+
Clear Video	+	+
Clear Video HD	+	+
Graphics max frequency	766 MHz	700 MHz
Execution Units	no data	12

Graphics interfaces

Available interfaces and connections of Core i7-640M and Celeron J3355 integrated GPUs.

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

Graphics API support

APIs supported by Core i7-640M and Celeron J3355 integrated GPUs, sometimes API versions are included.

DirectX	no data	+
OpenGL	no data	+

Peripherals

Specifications and connection of peripherals supported by Core i7-640M and Celeron J3355.

PCIe version	2.0	2.0
PCI Express lanes	16	6
USB revision	no data	2.0/3.0
Total number of SATA ports	no data	2
Max number of SATA 6 Gb/s Ports	no data	2
Number of USB ports	no data	8
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	1.35	0.78
Recency	13 September 2010	30 August 2016
Threads	4	2
Chip lithography	32 nm	14 nm
Power consumption (TDP)	35 Watt	10 Watt

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Should you still have questions on choice between Core i7-640M and Celeron J3355, ask them in Comments section, and we shall answer.

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