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Intel Xeon E5-2420

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Front view of Intel Xeon E5-2420

Differences What are the advantages of each

Front view of Intel Xeon E5-2420

Reasons to consider the
Intel Xeon E5-2420

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Significantly more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Significantly more l3 cache 15 MB vs 4 MB 3.8x more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 6 vs 2 Three times as many cores; run more applications at once
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Significantly better PassMark score 8,570 vs 2,584 More than 3.2x better PassMark score
More threads 12 vs 4 Three times as many threads
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Lower typical power consumption 77.19W vs 92.5W More than 15% lower typical power consumption
Significantly better performance per watt 5.47 pt/W vs 1.21 pt/W More than 4.5x better performance per watt
Supports more RAM 393,216 MB vs 16,773.12 MB Supports around 23.5x more RAM
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Better PassMark (Single core) score 1,355 vs 1,112 More than 20% better PassMark (Single core) score
Newer May, 2012 vs Jan, 2010 Release date over 2 years later
Better performance per dollar 1.26 pt/$ vs 1.14 pt/$ More than 10% better performance per dollar
Much lower annual home energy cost 22.89 $/year vs 35.3 $/year More than 35% lower annual home energy cost
Lower annual commercial energy cost 83.22 $/year vs 88.48 $/year More than 5% lower annual commercial energy cost
Front view of Intel Core i3 530

Reasons to consider the
Intel Core i3 530

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Significantly higher clock speed 2.93 GHz vs 1.9 GHz Around 55% higher clock speed
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much better overclocked clock speed (Air) 4.31 GHz vs 2.36 GHz Around 85% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.9 GHz vs 1.9 GHz More than 2.5x better overclocked clock speed (Water)
More l2 cache per core 0.5 MB/core vs 0.33 MB/core More than 50% more l2 cache per core

Benchmarks Real world tests of Xeon E5-2420 vs Core i3 530

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E5-2420
10,344
Core i3 530
3,904

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5-2420
985,150 MB/s
Core i3 530
123,800 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E5-2420  vs
Core i3 530 
Clock speed 1.9 GHz 2.93 GHz
Cores Hexa core Dual core
Is unlocked Yes No

features

Has a NX bit Yes Yes
Supports trusted computing Yes 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 95W 73W
Annual home energy cost 22.89 $/year 35.3 $/year
Annual commercial energy cost 83.22 $/year 88.48 $/year
Performance per watt 5.47 pt/W 1.21 pt/W
Typical power consumption 77.19W 92.5W

bus

Architecture QPI DMI
Number of links 1 1
Transfer rate 7,200 MT/s 2,500 MT/s

details

Xeon E5-2420  vs
Core i3 530 
Architecture x86-64 x86-64
Threads 12 4
L2 cache 2 MB 1 MB
L2 cache per core 0.33 MB/core 0.5 MB/core
L3 cache 15 MB 4 MB
L3 cache per core 2.5 MB/core 2 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 2 1
Voltage range 0.6 - 1.35V 0.65 - 1.4V

overclocking

Overclock popularity 0 13
Overclocked clock speed 2.36 GHz 4.31 GHz
Overclocked clock speed (Water) 1.9 GHz 4.9 GHz
Overclocked clock speed (Air) 2.36 GHz 4.31 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics
Number of displays supported N/A 2
GPU clock speed N/A 733 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3-800
DDR3
Channels Triple Channel Dual Channel
Maximum bandwidth 31,999.98 MB/s 21,333.32 MB/s
Maximum memory size 393,216 MB 16,773.12 MB
Intel Xeon E5-2420
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Intel Core i3 530
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