Celeron 2957U vs Pentium 3805U

Primary details

Comparing Pentium 3805U and Celeron 2957U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2661	2838
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Pentium	Intel Celeron
Power efficiency	4.67	3.41
Architecture codename	Broadwell-U (2015)	Haswell (2013−2015)
Release date	1 March 2015 (9 years ago)	1 January 2014 (10 years ago)
Launch price (MSRP)	$161	$107

Detailed specifications

Pentium 3805U and Celeron 2957U 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	2	2
Base clock speed	1.9 GHz	1.4 GHz
Boost clock speed	1.9 GHz	1.4 GHz
Bus rate	5 GT/s	5 GT/s
L1 cache	64K (per core)	128 KB
L2 cache	256K (per core)	512 KB
L3 cache	2 MB (shared)	2 MB
Chip lithography	14 nm	22 nm
Die size	82 mm2	no data
Maximum core temperature	105 °C	100 °C
Maximum case temperature (TCase)	105 °C	no data
Number of transistors	1300 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Pentium 3805U and Celeron 2957U 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	FCBGA1168
Power consumption (TDP)	15 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium 3805U and Celeron 2957U. 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
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	-
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	no data
Smart Response	-	-
GPIO	no data	+
Smart Connect	no data	+
FDI	+	-
Fast Memory Access	+	no data
AMT	no data	9.5
Matrix Storage	no data	-
HD Audio	no data	+
RST	no data	+

Security technologies

Pentium 3805U and Celeron 2957U technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium 3805U and Celeron 2957U are enumerated here.

AMD-V	+	+
VT-d	+	-
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium 3805U and Celeron 2957U. Depending on the motherboard, higher memory frequencies may be supported.

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

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for 5th Generation Intel® Processors	Intel® HD Graphics for 4th Generation Intel® Processors
Quick Sync Video	+	+
Clear Video	+	+
Graphics max frequency	800 MHz	1 GHz
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Pentium 3805U and Celeron 2957U integrated GPUs.

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

Graphics API support

APIs supported by Pentium 3805U and Celeron 2957U integrated GPUs, sometimes API versions are included.

DirectX

11.2/12

no data

Peripherals

Specifications and connection of peripherals supported by Pentium 3805U and Celeron 2957U.

PCIe version	2.0	2.0
PCI Express lanes	12	10
PCI support	no data	-
USB revision	no data	3.0
Total number of SATA ports	no data	2
Max number of SATA 6 Gb/s Ports	no data	2
Integrated IDE	no data	-
Number of USB ports	no data	4
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	0.74	0.54
Recency	1 March 2015	1 January 2014
Chip lithography	14 nm	22 nm

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Should you still have questions on choice between Pentium 3805U and Celeron 2957U, ask them in Comments section, and we shall answer.

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