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Intel Xeon E5-2420

Front view of Intel Xeon E5-2420
Front view of Intel Core i5 3330

Intel Core i5 3330

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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 6 MB 2.5x more l3 cache; more data can be stored in the l3 cache for quick access later
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
More threads 12 vs 4 Three times as many threads
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Significantly more l3 cache per core 2.5 MB/core vs 1.5 MB/core More than 65% more l3 cache per core
More cores 6 vs 4 2 more cores; run more applications at once
Supports more RAM 393,216 MB vs 32,768 MB Supports 12x more RAM
Better PassMark score 8,570 vs 5,905 More than 45% better PassMark score
More l2 cache per core 0.33 MB/core vs 0.25 MB/core Around 35% more l2 cache per core
Slightly better performance per watt 5.47 pt/W vs 4.85 pt/W Around 15% better performance per watt
Front view of Intel Core i5 3330

Reasons to consider the
Intel Core i5 3330

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Significantly higher clock speed 3 GHz vs 1.9 GHz Around 60% higher clock speed
Higher turbo clock speed 3.2 GHz vs 2.4 GHz Around 35% higher turbo clock speed
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much better performance per dollar 2.84 pt/$ vs 1.26 pt/$ More than 2.2x better performance per dollar
Significantly newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly better overclocked clock speed (Air) 3.38 GHz vs 2.36 GHz Around 45% better overclocked clock speed (Air)
Better PassMark (Single core) score 1,697 vs 1,355 More than 25% better PassMark (Single core) score
Lower typical power consumption 72.31W vs 77.19W More than 5% lower typical power consumption
Much better overclocked clock speed (Water) 3.58 GHz vs 1.9 GHz Around 90% better overclocked clock speed (Water)
Newer Sep, 2012 vs May, 2012 Release date 3 months later
Lower annual commercial energy cost 77.96 $/year vs 83.22 $/year More than 5% lower annual commercial energy cost
Lower annual home energy cost 21.44 $/year vs 22.89 $/year More than 5% lower annual home energy cost

Benchmarks Real world tests of Xeon E5-2420 vs Core i5 3330

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E5-2420
10,344
Core i5 3330
8,286

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon E5-2420
1,754
Core i5 3330
2,616

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5-2420
985,150 MB/s
Core i5 3330
2,170,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon E5-2420
9,662
Core i5 3330
8,088

GeekBench

Xeon E5-2420
9,662
Core i5 3330
11,087

PassMark Data courtesy Passmark

Xeon E5-2420
8,570
Core i5 3330
5,905

PassMark (Single Core)

Xeon E5-2420
1,355
Core i5 3330
1,697

Specifications Full list of technical specs

summary

 Xeon E5-2420  vs
Core i5 3330 
Clock speed 1.9 GHz 3 GHz
Turbo clock speed 2.4 GHz 3.2 GHz
Cores Hexa core Quad 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
EM64T
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption
TDP 95W 77W
Annual home energy cost 22.89 $/year 21.44 $/year
Annual commercial energy cost 83.22 $/year 77.96 $/year
Performance per watt 5.47 pt/W 4.85 pt/W
Typical power consumption 77.19W 72.31W

bus
Architecture QPI DMI
Number of links 1 1
Transfer rate 7,200 MT/s 5,000 MT/s

details

 Xeon E5-2420  vs
Core i5 3330 
Architecture x86-64 x86-64
Threads 12 4
L2 cache 2 MB 1 MB
L2 cache per core 0.33 MB/core 0.25 MB/core
L3 cache 15 MB 6 MB
L3 cache per core 2.5 MB/core 1.5 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 2 1

overclocking
Overclock popularity 0 2
Overclocked clock speed 2.36 GHz 3.38 GHz
Overclocked clock speed (Water) 1.9 GHz 3.58 GHz
Overclocked clock speed (Air) 2.36 GHz 3.38 GHz

integrated graphics
GPU None GPU
Label N/A Intel® HD Graphics 2500
Number of displays supported N/A 3
GPU clock speed N/A 650 MHz
Turbo clock speed N/A 1,050 MHz

memory controller
Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3-1066
DDR3
DDR3-800
Channels Triple Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 31,999.98 MB/s 25,600 MB/s
Maximum memory size 393,216 MB 32,768 MB
Intel Xeon E5-2420
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Intel Core i5 3330
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