i5-11400F vs Celeron 3955U

Primary details

Comparing Celeron 3955U and Core i5-11400F processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2503	719
Place by popularity	not in top-100	38
Cost-effectiveness evaluation	no data	39.69
Market segment	Laptop	Desktop processor
Series	Intel Celeron	no data
Power efficiency	5.90	15.61
Architecture codename	Skylake (2015−2016)	Rocket Lake (2021)
Release date	15 August 2015 (9 years ago)	16 March 2021 (3 years ago)
Launch price (MSRP)	$107	$157

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Celeron 3955U and Core i5-11400F 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)	6 (Hexa-Core)
Threads	2	12
Base clock speed	2 GHz	2.6 GHz
Boost clock speed	2 GHz	4.4 GHz
Bus type	OPI	no data
Bus rate	4 GT/s	8 GT/s
Multiplier	20	no data
L1 cache	128 KB	64K (per core)
L2 cache	512 KB	256K (per core)
L3 cache	2 MB	12 MB (shared)
Chip lithography	14 nm	14 nm
Die size	98.57 mm2	276 mm2
Maximum core temperature	100 °C	100 °C
Maximum case temperature (TCase)	no data	72 °C
Number of transistors	1750 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Celeron 3955U and Core i5-11400F 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	FCBGA1356	FCLGA1200
Power consumption (TDP)	15 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron 3955U and Core i5-11400F. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
FMA	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	+
My WiFi	+	no data
Turbo Boost Technology	-	2.0
Hyper-Threading Technology	-	+
TSX	-	+
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	no data
Smart Response	+	no data
Turbo Boost Max 3.0	no data	-
Deep Learning Boost	-	+

Security technologies

Celeron 3955U and Core i5-11400F technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	+
Secure Key	+	+
Identity Protection	+	+
SGX	Yes with Intel® ME	-
OS Guard	-	+

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron 3955U and Core i5-11400F are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron 3955U and Core i5-11400F. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-1866/2133, LPDDR3-1600/1866, DDR3L-1333/1600	DDR4
Maximum memory size	32 GB	128 GB
Max memory channels	2	2
Maximum memory bandwidth	34.134 GB/s	50 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics 510	no data
Max video memory	32 GB	no data
Quick Sync Video	+	-
Clear Video HD	+	no data
Graphics max frequency	900 MHz	no data

Graphics interfaces

Available interfaces and connections of Celeron 3955U and Core i5-11400F integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Celeron 3955U and Core i5-11400F integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	no data
Max resolution over HDMI 1.4	4096x2304@24Hz	no data
Max resolution over eDP	4096x2304@60Hz	no data
Max resolution over DisplayPort	4096x2304@60Hz	no data
Max resolution over VGA	N/A	no data

Graphics API support

APIs supported by Celeron 3955U and Core i5-11400F integrated GPUs, sometimes API versions are included.

DirectX	12	no data
OpenGL	4.4	no data

Peripherals

Specifications and connection of peripherals supported by Celeron 3955U and Core i5-11400F.

PCIe version	3.0	4.0
PCI Express lanes	12	20

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	0.97	11.13
Recency	15 August 2015	16 March 2021
Physical cores	2	6
Threads	2	12
Power consumption (TDP)	15 Watt	65 Watt

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Should you still have questions on choice between Celeron 3955U and Core i5-11400F, ask them in Comments section, and we shall answer.

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