Celeron B820 vs 2957U

Aggregate performance score

Celeron 2957U
2014
2 cores / 2 threads, 15 Watt
0.54
+8%
Celeron B820
2012
2 cores / 2 threads, 35 Watt
0.50

Celeron 2957U outperforms Celeron B820 by a small 8% based on our aggregate benchmark results.

Primary details

Comparing Celeron 2957U and Celeron B820 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking28382875
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesIntel CeleronIntel Celeron
Power efficiency3.411.35
Architecture codenameHaswell (2013−2015)Sandy Bridge (2011−2013)
Release date1 January 2014 (10 years ago)1 July 2012 (12 years ago)
Launch price (MSRP)$107$86

Detailed specifications

Celeron 2957U and Celeron B820 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 cores2 (Dual-core)2 (Dual-core)
Threads22
Base clock speed1.4 GHz1.7 GHz
Boost clock speed1.4 GHz1.7 GHz
Bus typeno dataDMI 2.0
Bus rate5 GT/s4 × 5 GT/s
Multiplierno data17
L1 cache128 KB64K (per core)
L2 cache512 KB256K (per core)
L3 cache2 MB2 MB (shared)
Chip lithography22 nm32 nm
Die sizeno data131 mm2
Maximum core temperature100 °C100 °C
Number of transistorsno data504 million
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Celeron 2957U and Celeron B820 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 configuration11 (Uniprocessor)
SocketFCBGA1168FCPGA988,PGA988
Power consumption (TDP)15 Watt35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron 2957U and Celeron B820. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2Intel® SSE4.1, Intel® SSE4.2
FMA-+
Enhanced SpeedStep (EIST)++
My WiFino data-
Turbo Boost Technology--
Hyper-Threading Technology--
Idle States++
Thermal Monitoring++
Flex Memory Accessno data+
Smart Response-no data
Demand Based Switchingno data-
GPIO+no data
Smart Connect+no data
FDI-+
Fast Memory Accessno data+
AMT9.5no data
Matrix Storage-no data
HD Audio+no data
RST+no data

Security technologies

Celeron 2957U and Celeron B820 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron 2957U and Celeron B820 are enumerated here.

AMD-V+-
VT-d--
VT-x++
EPT+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron 2957U and Celeron B820. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3
Maximum memory size16 GB16 GB
Max memory channels22
Maximum memory bandwidth25.6 GB/s21.335 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel HD Graphics for 4th Generation Intel ProcessorsIntel HD Graphics for 2nd Generation Intel Processors
Quick Sync Video+-
Clear Video+no data
Graphics max frequency1 GHz1.05 GHz

Graphics interfaces

Available interfaces and connections of Celeron 2957U and Celeron B820 integrated GPUs.

Number of displays supported32
eDP++
DisplayPort++
HDMI++
SDVOno data+
CRTno data+

Peripherals

Specifications and connection of peripherals supported by Celeron 2957U and Celeron B820.

PCIe version2.02.0
PCI Express lanes1016
PCI support-no data
USB revision3.0no data
Total number of SATA ports2no data
Max number of SATA 6 Gb/s Ports2no data
Integrated IDE-no data
Number of USB ports4no data
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.


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.

Celeron 2957U 0.54
+8%
Celeron B820 0.50

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Celeron 2957U 855
+6.6%
Celeron B820 802

Gaming performance

Pros & cons summary


Performance score 0.54 0.50
Recency 1 January 2014 1 July 2012
Chip lithography 22 nm 32 nm
Power consumption (TDP) 15 Watt 35 Watt

Celeron 2957U has a 8% higher aggregate performance score, an age advantage of 1 year, a 45.5% more advanced lithography process, and 133.3% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between Celeron 2957U and Celeron B820.


Should you still have questions on choice between Celeron 2957U and Celeron B820, ask them in Comments section, and we shall answer.

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Intel Celeron 2957U
Celeron 2957U
Intel Celeron B820
Celeron B820

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Community ratings

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Questions & comments

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