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Differences What are the advantages of each

Front view of Intel Xeon E5530

Reasons to consider the
Intel Xeon E5530

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More threads 8 vs 4 Twice as many threads
Supports more RAM 147,456 MB vs 33,556.48 MB Supports around 4.5x more RAM
Much better overclocked clock speed (Water) 4.38 GHz vs 3.1 GHz More than 40% better overclocked clock speed (Water)
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Front view of Intel Xeon E3-1220 v2

Reasons to consider the
Intel Xeon E3-1220 v2

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Much higher clock speed 3.1 GHz vs 2.4 GHz Around 30% higher clock speed
Much higher turbo clock speed 3.5 GHz vs 2.66 GHz More than 30% higher turbo clock speed
Much better PassMark score 6,602 vs 4,605 Around 45% better PassMark score
Much better PassMark (Single core) score 1,806 vs 1,086 More than 65% better PassMark (Single core) score
Much better performance per watt 13.51 pt/W vs 1.97 pt/W More than 6.8x better performance per watt
Much better performance per dollar 4.66 pt/$ vs 0.28 pt/$ More than 16.2x better performance per dollar
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Newer manufacturing process 22 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Lower typical power consumption 56.06W vs 65W Around 15% lower typical power consumption
Better overclocked clock speed (Air) 3.45 GHz vs 3.39 GHz Almost the same
Newer May, 2012 vs Mar, 2009 Release date over 3 years later
Lower annual commercial energy cost 60.44 $/year vs 70.08 $/year Around 15% lower annual commercial energy cost
Lower annual home energy cost 16.62 $/year vs 19.27 $/year Around 15% lower annual home energy cost

Benchmarks Real world tests of Xeon E5530 vs E3-1220 v2

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5530
110,200 MB/s
Xeon E3-1220 v2
2,200,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs


PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs


Xeon E5530  vs
E3-1220 v2 
Clock speed 2.4 GHz 3.1 GHz
Turbo clock speed 2.66 GHz 3.5 GHz
Cores Quad core Quad core
Socket type
LGA 1366
LGA 1155


Has a NX bit Yes Yes
Supports trusted computing No Yes
Has virtualization support Yes Yes
Instruction set extensions
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 80W 69W
Annual home energy cost 19.27 $/year 16.62 $/year
Annual commercial energy cost 70.08 $/year 60.44 $/year
Performance per watt 1.97 pt/W 13.51 pt/W
Typical power consumption 65W 56.06W


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


Xeon E5530  vs
E3-1220 v2 
Architecture x86-64 x86-64
Threads 8 4
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 8 MB 8 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 45 nm 22 nm
Max CPUs 2 1
Clock multiplier 18 31


Overclocked clock speed 3.39 GHz 3.45 GHz
Overclocked clock speed (Water) 4.38 GHz 3.1 GHz
Overclocked clock speed (Air) 3.39 GHz 3.45 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

memory controller

Memory controller Built-in Built-in
Memory type
Channels Triple Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 25,599.99 MB/s 25,600 MB/s
Maximum memory size 147,456 MB 33,556.48 MB
Intel Xeon E5530
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Intel Xeon E3-1220 v2
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