Intel Celeron 3955U: specs and benchmarks

Summary

Intel started Celeron 3955U sales 15 August 2015 at a recommended price of $107. This is a Skylake architecture notebook processor primarily aimed at office systems. It has 2 cores and 2 threads, and is based on 14 nm manufacturing technology, with a maximum frequency of 2000 MHz and a locked multiplier.

Compatibility-wise, this is FCBGA1356 processor with a TDP of 15 Watt. It supports DDR4-1866, DDR4-2133, LPDDR3-1600, LPDDR3-1866, DDR3L-1333, DDR3L-1600 memory.

General info

Celeron 3955U processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in performance ranking	2354
Place by popularity	not in top-100
Market segment	Laptop
Series	Intel Celeron
Architecture codename	Skylake (2015−2016)
Release date	15 August 2015 (8 years old)
Launch price (MSRP)	$107	of 305 (Core i7-870)
Current price	$764 (7.1x MSRP)	of 17802 (Threadripper PRO 7995WX)

Technical specs

Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores	2 (Dual-core)
Threads	2
Base clock speed	2 GHz	of 4.7 (FX-9590)
Boost clock speed	2 GHz	of 6.2 (Core i9-14900KS)
Bus support	4 GT/s
L1 cache	128 KB	of 7475.2 (Apple M2 Pro 10-Core)
L2 cache	512 KB	of 98304 (Ryzen Threadripper PRO 7995WX)
L3 cache	2 MB	of 768 (EPYC 7373X)
Chip lithography	14 nm	of 3 (Apple M3 Max 16-Core)
Die size	98.57 mm210.3 mm × 9.57 mm
Maximum core temperature	100 °C	of 110 (Atom x7-E3950)
Number of transistors	1750 Million	of 9900000 (Ryzen 5 7645HX)
64 bit support	+
Windows 11 compatibility	-
Unlocked multiplier	No

Compatibility

Information on Celeron 3955U compatibility with other computer components and devices: 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	of 8 (Opteron 842)
Socket	FCBGA1356
Power consumption (TDP)	15 Watt	of 400 (Xeon Platinum 9282)

Technologies and extensions

Technological capabilities and additional instructions supported by Celeron 3955U. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2
AES-NI	+
Enhanced SpeedStep (EIST)	+
My WiFi	+
Turbo Boost Technology	-
Hyper-Threading Technology	-
TSX	-
Idle States	+
Thermal Monitoring	+
Flex Memory Access	+
SIPP	-
Smart Response	+
Status	Launched

Security technologies

Processor technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.

VT-d	+
VT-x	+
EPT	+

Memory specs

Types, maximum amount and channel number of RAM supported by Celeron 3955U's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory types	DDR4-1866, DDR4-2133, LPDDR3-1600, LPDDR3-1866, DDR3L-1333, DDR3L-1600
Maximum memory size	32 GB	of 786 (Xeon E5-2670 v3)
Max memory channels	2	of 12 (Xeon Platinum 9221)
Maximum memory bandwidth	34.1 GB/s	of 460.8 (EPYC 9124)
ECC memory support	-

Graphics specifications

General parameters of a GPU integrated into Celeron 3955U.

Integrated graphics card	Intel HD Graphics 510
Max video memory	32 GB
Quick Sync Video	+
Clear Video HD	+
Graphics max frequency	900 MHz

Graphics interfaces

Available interfaces and connections of Celeron 3955U's integrated GPU.

Number of displays supported	3
eDP	+
DisplayPort	+
HDMI	+
DVI	+

Graphics image quality

Maximum display resolutions supported by Celeron 3955U's integrated GPU, including resolutions over different interfaces.

4K resolution support	+
Max resolution over HDMI 1.4	4096x2304@24Hz
Max resolution over eDP	4096x2304@60Hz
Max resolution over DisplayPort	4096x2304@60Hz
Max resolution over VGA	N/A

Graphics API support

APIs supported by Celeron 3955U's integrated GPU, sometimes API versions are included.

DirectX	12
OpenGL	4.4

Peripherals

Specifications and connection types of supported peripherals.

PCIe version	3.0	of 5 (Core i9-12900K)
PCI Express lanes	12	of 128 (EPYC 7551P)

Benchmark performance

Single-core and multi-core benchmark results of Celeron 3955U. Overall benchmark performance 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.

Relative perfomance

Overall Celeron 3955U performance compared to nearest competitors among notebook CPUs.

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