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Front view of Intel Core i7 875K

Intel Core i7 875K

CPUBoss Winner

Differences What are the advantages of each

Front view of Intel Xeon X3480

Reasons to consider the
Intel Xeon X3480

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Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Front view of Intel Core i7 875K

Reasons to consider the
Intel Core i7 875K

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Significantly better performance per dollar 0.63 pt/$ vs 0.31 pt/$ More than 2x better performance per dollar
Better overclocked clock speed (Air) 4.1 GHz vs 3.78 GHz Around 10% better overclocked clock speed (Air)
Significantly better overclocked clock speed (Water) 4.09 GHz vs 3.07 GHz Around 35% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon X3480 vs Core i7 875K

PassMark Data courtesy Passmark

Xeon X3480
Core i7 875K

PassMark (Single Core)

Xeon X3480
Core i7 875K

Specifications Full list of technical specs


Xeon X3480  vs
Core i7 875K 
Clock speed 3.06 GHz 2.93 GHz
Turbo clock speed 3.73 GHz 3.6 GHz
Cores Quad core Quad core
Socket type
LGA 1156


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

power consumption

TDP 95W 95W
Annual home energy cost 22.89 $/year 22.89 $/year
Annual commercial energy cost 83.22 $/year 83.22 $/year
Performance per watt 2.04 pt/W 2.32 pt/W
Typical power consumption 77.19W 77.19W

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 21,333.32 MB/s
Maximum memory size 32,768 MB 16,384 MB


Xeon X3480  vs
Core i7 875K 
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 45 nm 45 nm
Transistor count 774,000,000 774,000,000
Max CPUs 1 1
Clock multiplier 23 22
Voltage range 0.65 - 1.4V 0.65 - 1.4V
Operating temperature Unknown - 72.7°C Unknown - 72.7°C


Overclocked clock speed 3.78 GHz 4.1 GHz
Overclocked clock speed (Water) 3.07 GHz 4.09 GHz
Overclocked clock speed (Air) 3.78 GHz 4.1 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


Architecture DMI DMI
Number of links 1 1
Transfer rate 2,500 MT/s 2,500 MT/s
Intel Xeon X3480
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Intel Core i7 875K
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