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Differences What are the advantages of each

Front view of Intel Xeon E3-1245 v2

Reasons to consider the
Intel Xeon E3-1245 v2

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Much higher clock speed 3.4 GHz vs 3.1 GHz Around 10% higher clock speed
Much better PassMark score 9,099 vs 5,954 Around 55% better PassMark score
Significantly higher turbo clock speed 3.8 GHz vs 3.4 GHz More than 10% higher turbo clock speed
Much better performance per watt 9.49 pt/W vs 2.31 pt/W More than 4x better performance per watt
Much better performance per dollar 2.44 pt/$ vs 1.01 pt/$ Around 2.5x better performance per dollar
More l3 cache 8 MB vs 6 MB Around 35% more l3 cache; more data can be stored in the l3 cache for quick access later
More number of displays supported 3 vs 2 1 more number of displays supported
More threads 8 vs 4 Twice as many threads
Newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Lower typical power consumption 62.56W vs 77.19W Around 20% lower typical power consumption
More l3 cache per core 2 MB/core vs 1.5 MB/core Around 35% more l3 cache per core
Lower annual commercial energy cost 67.45 $/year vs 83.22 $/year Around 20% lower annual commercial energy cost
Lower annual home energy cost 18.55 $/year vs 22.89 $/year Around 20% lower annual home energy cost
Newer May, 2012 vs Apr, 2011 Release date over 1 years later
Front view of Intel Xeon E3-1225

Reasons to consider the
Intel Xeon E3-1225

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Much higher GPU clock speed 850 MHz vs 650 MHz More than 30% higher GPU clock speed

Benchmarks Real world tests of Xeon E3-1245 v2 vs E3-1225

GeekBench (32-bit) Data courtesy Primate Labs


PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs


Xeon E3-1245 v2  vs
Clock speed 3.4 GHz 3.1 GHz
Turbo clock speed 3.8 GHz 3.4 GHz
Cores Quad core Quad core
Socket type
LGA 1155


Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 77W 95W
Annual home energy cost 18.55 $/year 22.89 $/year
Annual commercial energy cost 67.45 $/year 83.22 $/year
Performance per watt 9.49 pt/W 2.31 pt/W
Typical power consumption 62.56W 77.19W


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


Xeon E3-1245 v2  vs
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 6 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 22 nm 32 nm
Max CPUs 1 1
Clock multiplier 34 31


Overclock popularity 4 0

integrated graphics

Label Intel® HD Graphics P4000 Intel® HD Graphics P3000
Number of displays supported 3 2
GPU clock speed 650 MHz 850 MHz
Turbo clock speed 1,250 MHz 1,350 MHz

memory controller

Memory controller Built-in Built-in
Memory type
Channels Dual Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 25,600 MB/s 21,333.32 MB/s
Maximum memory size 33,556.48 MB 32,768 MB
Intel Xeon E3-1245 v2
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Intel Xeon E3-1225
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