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Intel Core i7 875K

Front view of Intel Core i7 875K
Front view of Intel Core i7 870

Intel Core i7 870

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Differences What are the advantages of each

Front view of Intel Core i7 875K

Reasons to consider the
Intel Core i7 875K

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Front view of Intel Core i7 870

Reasons to consider the
Intel Core i7 870

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Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing

Benchmarks Real world tests of Core i7 875K vs 870

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i7 875K
9,946
Core i7 870
8,046

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i7 875K
2,349
Core i7 870
2,243

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i7 875K
160,300 MB/s
Core i7 870
142,100 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Core i7 875K
8,035
Core i7 870
7,874

GeekBench (64-bit) Data courtesy Primate Labs

Core i7 875K
9,329
Core i7 870
8,534

GeekBench

Core i7 875K
9,329
Core i7 870
10,143

PassMark Data courtesy Passmark

Core i7 875K
5,464
Core i7 870
5,398

PassMark (Single Core)

Core i7 875K
1,286
Core i7 870
1,300

Reviews Word on the street

Core i7 875K  vs 870 
8.0
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8.0
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Specifications Full list of technical specs

summary

 Core i7 875K  vs
870 
Clock speed 2.93 GHz 2.93 GHz
Turbo clock speed 3.6 GHz 3.6 GHz
Cores Quad core Quad core
Socket type
LGA 1156
Is unlocked Yes No

features
Has a NX bit Yes Yes
Supports trusted computing No Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption
TDP 95W 95W
Annual home energy cost 22.89 $/year 42.57 $/year
Annual commercial energy cost 83.22 $/year 120.89 $/year
Performance per watt 2.32 pt/W 1.11 pt/W
Typical power consumption 77.19W 121W

memory controller
Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3
Channels Dual Channel Dual Channel
Supports ECC No No
Maximum bandwidth 21,333.32 MB/s 21,333.32 MB/s
Maximum memory size 16,384 MB 16,384 MB

details

 Core i7 875K  vs
870 
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 22 22
Voltage range 0.65 - 1.4V 0.65 - 1.4V
Operating temperature Unknown - 72.7°C Unknown - 72.7°C

overclocking
Overclock popularity 13 37
Overclocked clock speed 4.1 GHz 4.1 GHz
Overclocked clock speed (Water) 4.09 GHz 4.28 GHz
Overclocked clock speed (Air) 4.1 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

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