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Differences What are the advantages of each

Front view of Intel Xeon L5639

Reasons to consider the
Intel Xeon L5639

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Much better geekbench 2 (64-bit) score 13,956 vs 4,116 Around 3.5x better geekbench 2 (64-bit) score
Higher clock speed 2.13 GHz vs 1.8 GHz Around 20% higher clock speed
Significantly better geekbench 2 (32-bit) score 9,881 vs 4,136 Around 2.5x better geekbench 2 (32-bit) score
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
More cores 6 vs 2 Three times as many cores; run more applications at once
More threads 12 vs 4 Three times as many threads
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Better geekbench 3 Multi-Core score 14,645 vs 4,478 More than 3.2x better geekbench 3 Multi-Core score
Better overclocked clock speed (Air) 3.46 GHz vs 2.7 GHz Around 30% better overclocked clock speed (Air)
Front view of Intel Core i5 3337U

Reasons to consider the
Intel Core i5 3337U

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Much newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Lower typical power consumption 13.81W vs 48.75W 3.5x lower typical power consumption
Slightly better performance per watt 23.33 pt/W vs 11.34 pt/W More than 2x better performance per watt
Lower annual commercial energy cost 14.89 $/year vs 52.56 $/year 3.5x lower annual commercial energy cost
Lower annual home energy cost 4.1 $/year vs 14.45 $/year 3.5x lower annual home energy cost

Benchmarks Real world tests of Xeon L5639 vs Core i5 3337U

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon L5639
14,645

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon L5639
1,390,000 MB/s
Core i5 3337U
1,750,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench (64-bit) Data courtesy Primate Labs

Xeon L5639
13,956

GeekBench

Xeon L5639
13,956

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon L5639  vs
Core i5 3337U 
Clock speed 2.13 GHz 1.8 GHz
Cores Hexa core Dual core
Socket type
LGA 1366
BGA 1023

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

bus

Architecture QPI DMI
Number of links 2 1
Transfer rate 5,860 MT/s 5,000 MT/s

details

Xeon L5639  vs
Core i5 3337U 
Threads 12 4
L2 cache 2 MB 0.5 MB
L2 cache per core 0.33 MB/core 0.25 MB/core
L3 cache 12 MB 3 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 2 1

overclocking

Overclocked clock speed 3.46 GHz 2.7 GHz
Overclocked clock speed (Water) 2.13 GHz 1.8 GHz
Overclocked clock speed (Air) 3.46 GHz 2.7 GHz

power consumption

TDP 60W 17W
Annual home energy cost 14.45 $/year 4.1 $/year
Annual commercial energy cost 52.56 $/year 14.89 $/year
Performance per watt 11.34 pt/W 23.33 pt/W
Typical power consumption 48.75W 13.81W
Intel Xeon L5639
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Intel Core i5 3337U
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