CPUBoss Review Our evaluation of X5650 vs L5639

Performance

Benchmark performance using all cores

Passmark, GeekBench (32-bit) and GeekBench (64-bit)

Single-core Performance

Individual core benchmark performance

Passmark (Single Core)

Cost to Run

Commercial Energy Cost

Value

Performance Per Dollar

CPUBoss Score

Performance, Single-core Performance, Cost to Run and Value

Winner
Intel Xeon X5650 

CPUBoss recommends the Intel Xeon X5650  based on its .

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VS

Intel Xeon X5650

CPUBoss Winner
Front view of Intel Xeon X5650

Differences What are the advantages of each

Front view of Intel Xeon X5650

Reasons to consider the
Intel Xeon X5650

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Higher clock speed 2.66 GHz vs 2.13 GHz Around 25% higher clock speed
Much better performance per dollar 15.11 pt/$ vs 4.79 pt/$ Around 3.2x better performance per dollar
Better PassMark (Single core) score 1,232 vs 914 Around 35% better PassMark (Single core) score
Better geekbench (32-bit) score 13,247 vs 9,881 Around 35% better geekbench (32-bit) score
Much better overclocked clock speed (Water) 4.39 GHz vs 2.13 GHz More than 2x better overclocked clock speed (Water)
Better PassMark score 7,606 vs 5,499 Around 40% better PassMark score
Front view of Intel Xeon L5639

Reasons to consider the
Intel Xeon L5639

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Lower typical power consumption 48.75W vs 77.19W More than 35% lower typical power consumption
Better overclocked clock speed (Air) 3.83 GHz vs 3.46 GHz More than 10% better overclocked clock speed (Air)
Lower annual commercial energy cost 52.56 $/year vs 83.22 $/year More than 35% lower annual commercial energy cost
Lower annual home energy cost 14.45 $/year vs 22.89 $/year More than 35% lower annual home energy cost

Benchmarks Real world tests of Xeon X5650 vs L5639

GeekBench (32-bit) Data courtesy Primate Labs

Xeon X5650
13,247
Xeon L5639
9,881

GeekBench (64-bit) Data courtesy Primate Labs

Xeon X5650
13,603
Xeon L5639
13,956

GeekBench

Xeon X5650
14,009
Xeon L5639
13,956

Passmark

Xeon X5650
7,606
Xeon L5639
5,499

Passmark (Single Core)

Specifications Full list of technical specs

summary

Xeon X5650  vs
L5639 
Clock speed 2.66 GHz 2.13 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
SSE4
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 51,200 MB/s 46,928 MB/s
Transfer rate 6,400 MT/s 5,860 MT/s
Clock speed 3,200 MHz 2,933 MHz

details

Xeon X5650  vs
L5639 
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 3.83 GHz
Overclocked clock speed (Water) 4.39 GHz 2.13 GHz
Overclocked clock speed (Air) 3.46 GHz 3.83 GHz

power consumption

TDP 95W 60W
Annual home energy cost 22.89 $/year 14.45 $/year
Annual commercial energy cost 83.22 $/year 52.56 $/year
Performance per watt 12.05 pt/W 13.79 pt/W
Typical power consumption 77.19W 48.75W
Intel Xeon X5650
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Intel Xeon L5639
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