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Differences What are the advantages of each

Front view of Intel Pentium E2140

Reasons to consider the
Intel Pentium E2140

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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
More l2 cache 1 MB vs 0.5 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Front view of Intel Pentium 925c

Reasons to consider the
Intel Pentium 925c

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Much newer manufacturing process 22 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 2 GHz vs 1.6 GHz Around 25% higher clock speed
Much lower typical power consumption 12.19W vs 52.81W 4.3x lower typical power consumption
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
More threads 4 vs 2 Twice as many threads
Much lower annual home energy cost 3.61 $/year vs 15.66 $/year 4.3x lower annual home energy cost
Much lower annual commercial energy cost 13.14 $/year vs 56.94 $/year 4.3x lower annual commercial energy cost

Features Key features of the Pentium E2140  vs 925c 

clock speed

Pentium E2140
1.6 GHz
Pentium 925c
2 GHz

L2 cache

Specifications Full list of technical specs

summary

Pentium E2140  vs
925c 
Clock speed 1.6 GHz 2 GHz
Cores Dual core Dual core
Socket type
LGA 775
BGA 1284

features

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

details

Pentium E2140  vs
925c 
Architecture x86-64 x86-64
Threads 2 4
L2 cache 1 MB 0.5 MB
L2 cache per core 0.5 MB/core 0.25 MB/core
Manufacture process 65 nm 22 nm
Max CPUs 1 1
Clock multiplier 8 20

integrated graphics

GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A

power consumption

TDP 65W 15W
Annual home energy cost 15.66 $/year 3.61 $/year
Annual commercial energy cost 56.94 $/year 13.14 $/year
Typical power consumption 52.81W 12.19W
Intel Pentium E2140
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Intel Pentium 925c
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