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Differences What are the advantages of each

Front view of Intel Celeron 857

Reasons to consider the
Intel Celeron 857

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Supports dynamic frequency scaling Yes vs No Somewhat common; Allows for maximum performance when needed, while conserving power and minimizing heat production when not needed
Front view of Intel Celeron 2957U

Reasons to consider the
Intel Celeron 2957U

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CPUBoss is not aware of any important advantages of the 2957U vs the 857.

Benchmarks Real world tests of Celeron 857 vs 2957U

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Celeron 857
56 MB/s
Celeron 2957U
80,200 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Celeron 857  vs
2957U 
Clock speed 1.2 GHz 1.4 GHz
Cores Dual core Dual core
Socket type
BGA 1023
BGA 1168

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
SSE3
EM64T
SSE
SSE4.1
SSE4.2
Supplemental SSE3
Supports dynamic frequency scaling Yes No

power consumption

TDP 17W 15W
Annual home energy cost 4.1 $/year 3.61 $/year
Performance per watt 2.67 pt/W 5.11 pt/W
Typical power consumption 13.81W 12.19W

bus

Architecture DMI DMI 2.0
Number of links 1 1
Transfer rate 5,000 MT/s 5,000 MT/s

details

Celeron 857  vs
2957U 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 1 MB 0.5 MB
L2 cache per core 0.5 MB/core 0.25 MB/core
L3 cache 2 MB 2 MB
L3 cache per core 1 MB/core 1 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 1 1
Clock multiplier 12 14
Operating temperature Unknown - 100°C Unknown - 100°C

overclocking

Overclocked clock speed 1.2 GHz 1.41 GHz
Overclocked clock speed (Water) 1.2 GHz 1.4 GHz
Overclocked clock speed (Air) 1.2 GHz 1.41 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics HD
Number of displays supported 2 3
GPU clock speed 350 MHz 200 MHz
Turbo clock speed 1,000 MHz 1,000 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3-1066
DDR3
Channels Dual Channel Dual Channel
Supports ECC No No
Maximum bandwidth 21,333.32 MB/s 25,600 MB/s
Maximum memory size 16,384 MB 16,384 MB
Intel Celeron 857
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Intel Celeron 2957U
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