CPUBoss Review Our evaluation of L5630 vs E5620 among all CPUs

Performance

Benchmark performance using all cores
Xeon L5630
5.4
Xeon E5620
6.3
Xeon E5-2620
6.5
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance
Xeon L5630
5.1
Xeon E5620
7.6
Xeon E5-2620
7.7
PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics
Xeon L5630
n.d.
Xeon E5620
n.d.
Xeon E5-2620
n.d.
Sky Diver and Cloud Gate

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing
Xeon L5630
0.0
Xeon E5620
0.0
Xeon E5-2620
0.0
CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?
Xeon L5630
5.2
Xeon E5620
5.1
Xeon E5-2620
5.1
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?
Xeon L5630
n.d.
Xeon E5620
n.d.
Xeon E5-2620
n.d.
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more
4.8

CPUBoss Score

Combination of all six facets
Xeon L5630
4.1
Xeon E5620
4.8
Xeon E5-2620
4.8

Winner
Intel Xeon E5620 

CPUBoss recommends the Intel Xeon E5620  based on its performance, single-core performance and value.

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VS

Intel Xeon L5630

Front view of Intel Xeon L5630
Front view of Intel Xeon E5620

Intel Xeon E5620

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Differences What are the advantages of each

Front view of Intel Xeon L5630

Reasons to consider the
Intel Xeon L5630

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Significantly lower typical power consumption 32.5W vs 65W 2x lower typical power consumption
Significantly lower annual commercial energy cost 35.04 $/year vs 70.08 $/year 2x lower annual commercial energy cost
Significantly lower annual home energy cost 9.64 $/year vs 19.27 $/year 2x lower annual home energy cost
Front view of Intel Xeon E5620

Reasons to consider the
Intel Xeon E5620

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Significantly higher clock speed 2.4 GHz vs 2.13 GHz Around 15% higher clock speed
Much better performance per watt 7.59 pt/W vs 1.92 pt/W Around 4x better performance per watt
Much better performance per dollar 2.18 pt/$ vs 0.14 pt/$ Around 15.8x better performance per dollar
Higher turbo clock speed 2.66 GHz vs 2.4 GHz More than 10% higher turbo clock speed
Much better overclocked clock speed (Water) 4.33 GHz vs 3.48 GHz Around 25% better overclocked clock speed (Water)
Better overclocked clock speed (Air) 3.75 GHz vs 3.66 GHz Almost the same

Benchmarks Real world tests of Xeon L5630 vs E5620

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon L5630
953.5
Xeon E5620
14,086

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon L5630
968.5
Xeon E5620
1,898

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon L5630
51.5 MB/s
Xeon E5620
1,280,000 MB/s

PassMark Data courtesy Passmark

Xeon L5630
4,420
Xeon E5620
4,873

PassMark (Single Core)

Xeon L5630
943
Xeon E5620
1,059

Specifications Full list of technical specs

summary

 Xeon L5630  vs
E5620 
Clock speed 2.13 GHz 2.4 GHz
Turbo clock speed 2.4 GHz 2.66 GHz
Cores Quad core Quad 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

power consumption
TDP 40W 80W
Annual home energy cost 9.64 $/year 19.27 $/year
Annual commercial energy cost 35.04 $/year 70.08 $/year
Performance per watt 1.92 pt/W 7.59 pt/W
Typical power consumption 32.5W 65W

memory controller
Memory controller Built-in Built-in
Memory type
DDR3-1066
DDR3-800
DDR3
Channels Triple Channel Triple Channel
Supports ECC Yes Yes
Maximum bandwidth 25,599.99 MB/s 25,599.99 MB/s
Maximum memory size 294,912 MB 294,912 MB

details

 Xeon L5630  vs
E5620 
Architecture x86-64 x86-64
Threads 8 8
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 12 MB 12 MB
L3 cache per core 3 MB/core 3 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 2 2
Clock multiplier 16 18
Voltage range 0.75 - 1.35V 0.75 - 1.35V
Operating temperature Unknown - 63.1°C Unknown - 77.6°C

overclocking
Overclock popularity 0 12
Overclocked clock speed 3.66 GHz 3.75 GHz
Overclocked clock speed (Water) 3.48 GHz 4.33 GHz
Overclocked clock speed (Air) 3.66 GHz 3.75 GHz

integrated graphics
GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A

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 2,930 MHz 2,930 MHz
Intel Xeon L5630
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Intel Xeon E5620
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