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Differences What are the advantages of each

Front view of Intel Xeon E3120

Reasons to consider the
Intel Xeon E3120

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Much more l2 cache 6 MB vs 1 MB 6x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 3 MB/core vs 0.25 MB/core 12x more l2 cache per core
Much lower typical power consumption 52.81W vs 114.97W 2.2x lower typical power consumption
Much lower annual home energy cost 15.66 $/year vs 42.19 $/year 2.7x lower annual home energy cost
Much lower annual commercial energy cost 56.94 $/year vs 112.39 $/year Around 50% lower annual commercial energy cost
Higher Maximum operating temperature 72.4 °C vs 67.4 °C More than 5% higher Maximum operating temperature
Front view of Intel Core i7 3770K

Reasons to consider the
Intel Core i7 3770K

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Much newer manufacturing process 22 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much better performance per dollar 2.21 pt/$ vs 0.48 pt/$ More than 4.5x better performance per dollar
Higher clock speed 3.5 GHz vs 3.16 GHz More than 10% higher clock speed
Significantly better PassMark score 9,544 vs 2,241 More than 4.2x better PassMark score
Significantly better PassMark (Single core) score 2,084 vs 1,338 More than 55% better PassMark (Single core) score
More threads 8 vs 2 6 more threads
Significantly better performance per watt 4.55 pt/W vs 1.39 pt/W More than 3.2x better performance per watt
More cores 4 vs 2 Twice as many cores; run more applications at once
Newer Apr, 2012 vs Aug, 2008 Release date over 3 years later
Much better overclocked clock speed (Water) 4.8 GHz vs 3.17 GHz More than 50% better overclocked clock speed (Water)
Better overclocked clock speed (Air) 4.69 GHz vs 4.42 GHz More than 5% better overclocked clock speed (Air)

Benchmarks Real world tests of Xeon E3120 vs Core i7 3770K

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E3120
2,995
Core i7 3770K
13,098

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E3120
134.6 MB/s
Core i7 3770K
2,620,000 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E3120  vs
Core i7 3770K 
Clock speed 3.16 GHz 3.5 GHz
Cores Dual core Quad core
Socket type
LGA 775
LGA 1155

features

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

power consumption

TDP 65W 77W
Annual home energy cost 15.66 $/year 42.19 $/year
Annual commercial energy cost 56.94 $/year 112.39 $/year
Performance per watt 1.39 pt/W 4.55 pt/W
Typical power consumption 52.81W 114.97W

details

Xeon E3120  vs
Core i7 3770K 
Architecture x86-64 x86-64
Threads 2 8
L2 cache 6 MB 1 MB
L2 cache per core 3 MB/core 0.25 MB/core
Manufacture process 45 nm 22 nm
Transistor count 410,000,000 1,400,000,000
Max CPUs 1 1
Clock multiplier 9 35
Operating temperature Unknown - 72.4°C Unknown - 67.4°C

overclocking

Overclocked clock speed 4.42 GHz 4.69 GHz
Overclocked clock speed (Water) 3.17 GHz 4.8 GHz
Overclocked clock speed (Air) 4.42 GHz 4.69 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics 4000
Latest DirectX N/A 11.x
Number of displays supported N/A 3
GPU clock speed N/A 650 MHz
Turbo clock speed N/A 1,150 MHz
3DMark06 N/A 5,339.9

bus

Architecture FSB DMI
Number of links 1 1
Intel Xeon E3120
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Intel Core i7 3770K
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