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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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Higher clock speed 3.4 GHz vs 3.3 GHz Around 5% higher clock speed
More number of displays supported 3 vs 2 1 more number of displays supported
Higher turbo clock speed 3.8 GHz vs 3.7 GHz Around 5% higher turbo clock speed
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
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
Better overclocked clock speed (Water) 3.4 GHz vs 3.3 GHz Around 5% better overclocked clock speed (Water)
Newer May, 2012 vs Apr, 2011 Release date over 1 years later
Front view of Intel Xeon E3-1245

Reasons to consider the
Intel Xeon E3-1245

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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 E3-1245

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 E3-1245 v2
2,520,000 MB/s
Xeon E3-1245
2,410,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E3-1245 v2  vs
E3-1245 
Clock speed 3.4 GHz 3.3 GHz
Turbo clock speed 3.8 GHz 3.7 GHz
Cores Quad core Quad core
Socket type
LGA 1155

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 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 10.8 pt/W
Typical power consumption 62.56W 77.19W

bus

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

details

Xeon E3-1245 v2  vs
E3-1245 
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 8 MB 8 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 22 nm 32 nm
Max CPUs 1 1
Clock multiplier 34 33

overclocking

Overclock popularity 4 1
Overclocked clock speed 3.75 GHz 3.71 GHz
Overclocked clock speed (Water) 3.4 GHz 3.3 GHz
Overclocked clock speed (Air) 3.75 GHz 3.71 GHz

integrated graphics

GPU GPU GPU
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
DDR3-1600
DDR3-1333
DDR3-1066
DDR3
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 E3-1245
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