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Intel Xeon L5639

CPUBoss Winner
Front view of Intel Xeon L5639

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 PassMark score 7,021 vs 5,556 More than 25% better PassMark score
Much better performance per dollar 2.23 pt/$ vs 0.88 pt/$ More than 2.5x better performance per dollar
Much better overclocked clock speed (Air) 3.46 GHz vs 2 GHz Around 75% better overclocked clock speed (Air)
Higher clock speed 2.13 GHz vs 2 GHz More than 5% higher clock speed
Front view of Intel Xeon L5638

Reasons to consider the
Intel Xeon L5638

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Much better overclocked clock speed (Water) 3.03 GHz vs 2.13 GHz More than 40% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon L5639 vs L5638

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon L5639
14,645
Xeon L5638
15,681

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon L5639
2,085
Xeon L5638
1,355

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon L5639
1,390,000 MB/s
Xeon L5638
965,300 MB/s

PassMark Data courtesy Passmark

Xeon L5639
7,021
Xeon L5638
5,556

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon L5639  vs
L5638 
Clock speed 2.13 GHz 2 GHz
Cores Hexa core Hexa core
Socket type
LGA 1366

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

bus

Architecture QPI QPI
Number of links 2 2
Data rate 46,928 MB/s 46,928 MB/s
Transfer rate 5,860 MT/s 5,860 MT/s
Clock speed 2,933 MHz 2,930 MHz

details

Xeon L5639  vs
L5638 
Threads 12 12
L2 cache 2 MB 2 MB
L2 cache per core 0.33 MB/core 0.33 MB/core
L3 cache 12 MB 12 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 2 2

overclocking

Overclocked clock speed 3.46 GHz 2 GHz
Overclocked clock speed (Water) 2.13 GHz 3.03 GHz
Overclocked clock speed (Air) 3.46 GHz 2 GHz

power consumption

TDP 60W 60W
Annual home energy cost 14.45 $/year 14.45 $/year
Annual commercial energy cost 52.56 $/year 52.56 $/year
Performance per watt 11.16 pt/W 8.43 pt/W
Typical power consumption 48.75W 48.75W
Intel Xeon L5639
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Intel Xeon L5638
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