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Differences What are the advantages of each

Front view of Intel Core i7 980X

Reasons to consider the
Intel Core i7 980X

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CPUBoss is not aware of any important advantages of the 980X Extreme Edition vs the 975 Extreme Edition.

Front view of Intel Core i7 975

Reasons to consider the
Intel Core i7 975

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CPUBoss is not aware of any important advantages of the 975 Extreme Edition vs the 980X Extreme Edition.

Benchmarks Real world tests of Core i7 980X vs 975

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i7 980X
14,564
Core i7 975
9,214

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i7 980X
1,710,000 MB/s
Core i7 975
152,250 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Core i7 980X
14,533
Core i7 975
9,229

GeekBench (64-bit) Data courtesy Primate Labs

Core i7 980X
15,418
Core i7 975
9,894

GeekBench

Core i7 980X
15,418
Core i7 975
11,512

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 980X  vs
975 
Clock speed 3.33 GHz 3.33 GHz
Turbo clock speed 3.6 GHz 3.6 GHz
Cores Hexa core Quad core
Socket type
LGA 1366
Is unlocked Yes Yes

features

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

power consumption

TDP 130W 130W
Annual home energy cost 50.68 $/year 82.69 $/year
Annual commercial energy cost 148.92 $/year 211.12 $/year
Performance per watt 4.35 pt/W 0.93 pt/W
Idle power consumption 79.5W 154W
Peak power consumption 170W 241W
Typical power consumption N/A 212W

bus

Architecture QPI QPI
Number of links 1 1
Data rate 25,600 MB/s 25,600 MB/s
Transfer rate 6,400 MT/s 6,400 MT/s
Clock speed 3,200 MHz 3,200 MHz

details

Core i7 980X  vs
975 
Architecture x86-64 x86-64
Threads 12 8
L2 cache 2 MB 1 MB
L2 cache per core 0.33 MB/core 0.25 MB/core
L3 cache 12 MB 8 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 32 nm 45 nm
Transistor count 1,170,000,000 731,000,000
Max CPUs 1 1
Clock multiplier 25 25
Voltage range 0.8 - 1.38V 0.8 - 1.38V
Operating temperature Unknown - 67.9°C 5 - 67.9°C

overclocking

Overclock popularity 85 8
Overclocked clock speed 4.53 GHz 4.46 GHz
Overclocked clock speed (Water) 4.28 GHz 4.45 GHz
Overclocked clock speed (Air) 4.53 GHz 4.46 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

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1066
DDR3-800
Channels Triple Channel Triple Channel
Supports ECC No No
Maximum bandwidth 25,599.99 MB/s 25,599.99 MB/s
Maximum memory size 24,576 MB 24,000 MB
Intel Core i7 980X
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Intel Core i7 975
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