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Differences What are the advantages of each

Front view of Intel Xeon E3-1260L

Reasons to consider the
Intel Xeon E3-1260L

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Significantly lower typical power consumption 36.56W vs 62.56W More than 40% lower typical power consumption
Better turbo clock speed 1,250 MHz vs 1,150 MHz Around 10% better turbo clock speed
Significantly lower annual home energy cost 10.84 $/year vs 18.55 $/year More than 40% lower annual home energy cost
Significantly lower annual commercial energy cost 39.42 $/year vs 67.45 $/year More than 40% lower annual commercial energy cost
Front view of Intel Core i7 3770

Reasons to consider the
Intel Core i7 3770

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Significantly higher clock speed 3.4 GHz vs 2.4 GHz More than 40% higher clock speed
Higher turbo clock speed 3.9 GHz vs 3.3 GHz Around 20% higher turbo clock speed
Much better performance per dollar 2.33 pt/$ vs 0.73 pt/$ Around 3.2x better performance per dollar
Significantly newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More number of displays supported 3 vs 2 1 more number of displays supported
Better PassMark (Single core) score 2,072 vs 1,642 More than 25% better PassMark (Single core) score
Better PassMark score 9,449 vs 6,534 Around 45% better PassMark score
Better performance per watt 7.25 pt/W vs 5.01 pt/W Around 45% better performance per watt
Higher Maximum operating temperature 67.4 °C vs 58.6 °C More than 15% higher Maximum operating temperature
Newer Apr, 2012 vs Apr, 2011 Release date over 1 years later

Benchmarks Real world tests of Xeon E3-1260L vs Core i7 3770

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs


Xeon E3-1260L  vs
Core i7 3770 
Clock speed 2.4 GHz 3.4 GHz
Turbo clock speed 3.3 GHz 3.9 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

memory controller

Memory controller Built-in Built-in
Memory type
Channels Dual Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 21,333.32 MB/s 25,600 MB/s
Maximum memory size 32,768 MB 32,768 MB


Xeon E3-1260L  vs
Core i7 3770 
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 32 nm 22 nm
Max CPUs 1 1
Clock multiplier 24 34
Operating temperature Unknown - 58.6°C Unknown - 67.4°C

integrated graphics

Label HD Graphics 2000 Intel® HD Graphics 4000
Number of displays supported 2 3
GPU clock speed 650 MHz 650 MHz
Turbo clock speed 1,250 MHz 1,150 MHz

power consumption

TDP 45W 77W
Annual home energy cost 10.84 $/year 18.55 $/year
Annual commercial energy cost 39.42 $/year 67.45 $/year
Performance per watt 5.01 pt/W 7.25 pt/W
Typical power consumption 36.56W 62.56W


Architecture DMI DMI
Number of links 1 1
Transfer rate 5,000 MT/s 5,000 MT/s
Intel Xeon E3-1260L
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Intel Core i7 3770
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