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Differences What are the advantages of each

Front view of Intel Xeon E5630

Reasons to consider the
Intel Xeon E5630

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Much higher clock speed 2.53 GHz vs 1.9 GHz Around 35% higher clock speed
Significantly higher turbo clock speed 2.8 GHz vs 2.4 GHz More than 15% higher turbo clock speed
Much better overclocked clock speed (Air) 4.02 GHz vs 2.36 GHz More than 70% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.64 GHz vs 1.9 GHz Around 2.5x better overclocked clock speed (Water)
Lower typical power consumption 65W vs 77.19W More than 15% lower typical power consumption
More l3 cache per core 3 MB/core vs 2.5 MB/core 20% more l3 cache per core
Lower annual commercial energy cost 70.08 $/year vs 83.22 $/year More than 15% lower annual commercial energy cost
Lower annual home energy cost 19.27 $/year vs 22.89 $/year More than 15% lower annual home energy cost
Front view of Intel Xeon E5-2420

Reasons to consider the
Intel Xeon E5-2420

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Much 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
Much better PassMark score 8,570 vs 5,161 More than 65% better PassMark score
Significantly more l3 cache 15 MB vs 12 MB 25% more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 6 vs 4 2 more cores; run more applications at once
More threads 12 vs 8 4 more threads
Supports more RAM 393,216 MB vs 294,912 MB Supports around 35% more RAM
More l2 cache per core 0.33 MB/core vs 0.25 MB/core Around 35% more l2 cache per core
Newer May, 2012 vs Mar, 2010 Release date over 2 years later

Benchmarks Real world tests of Xeon E5630 vs E5-2420

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E5630
7,840
Xeon E5-2420
10,344

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon E5630
1,973
Xeon E5-2420
1,754

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5630
1,285,000 MB/s
Xeon E5-2420
985,150 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon E5630
7,896
Xeon E5-2420
9,662

GeekBench

Xeon E5630
10,887
Xeon E5-2420
9,662

PassMark Data courtesy Passmark

Xeon E5630
5,161
Xeon E5-2420
8,570

PassMark (Single Core)

Xeon E5630
1,114
Xeon E5-2420
1,355

Specifications Full list of technical specs

summary

Xeon E5630  vs
E5-2420 
Clock speed 2.53 GHz 1.9 GHz
Turbo clock speed 2.8 GHz 2.4 GHz
Cores Quad core Hexa core

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
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

power consumption

TDP 80W 95W
Annual home energy cost 19.27 $/year 22.89 $/year
Annual commercial energy cost 70.08 $/year 83.22 $/year
Performance per watt 7.2 pt/W 5.47 pt/W
Typical power consumption 65W 77.19W

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3-800
DDR3
Channels Triple Channel Triple Channel
Supports ECC Yes Yes
Maximum bandwidth 25,599.99 MB/s 31,999.98 MB/s
Maximum memory size 294,912 MB 393,216 MB

details

Xeon E5630  vs
E5-2420 
Architecture x86-64 x86-64
Threads 8 12
L2 cache 1 MB 2 MB
L2 cache per core 0.25 MB/core 0.33 MB/core
L3 cache 12 MB 15 MB
L3 cache per core 3 MB/core 2.5 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 2 2
Voltage range 0.75 - 1.35V 0.6 - 1.35V

overclocking

Overclock popularity 1 0
Overclocked clock speed 4.02 GHz 2.36 GHz
Overclocked clock speed (Water) 4.64 GHz 1.9 GHz
Overclocked clock speed (Air) 4.02 GHz 2.36 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 1
Data rate 46,928 MB/s 28,800 MB/s
Transfer rate 5,860 MT/s 7,200 MT/s
Clock speed 2,930 MHz 3,600 MHz
Intel Xeon E5630
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Intel Xeon E5-2420
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