CPUBoss Review Our evaluation of 975 vs 2222 among all CPUs

Performance

Benchmark performance using all cores

PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Sky Diver and Cloud Gate

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

5.2

CPUBoss Score

Combination of all six facets

Winner
Intel Core i7 975 

CPUBoss recommends the Intel Core i7 975  based on its performance and single-core performance.

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VS

Intel Core i7 975

CPUBoss Winner
Front view of Intel Core i7 975

Differences What are the advantages of each

Front view of Intel Core i7 975

Reasons to consider the
Intel Core i7 975

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much newer manufacturing process 45 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More l3 cache 8 MB vs 1 MB 8x more l3 cache; more data can be stored in the l3 cache for quick access later
Higher clock speed 3.33 GHz vs 3 GHz More than 10% higher clock speed
Much more l3 cache per core 2 MB/core vs 0.5 MB/core 4x more l3 cache per core
Better PassMark score 6,173 vs 1,843 More than 3.2x better PassMark score
Significantly better overclocked clock speed (Air) 4.46 GHz vs 3.23 GHz Around 40% better overclocked clock speed (Air)
More threads 8 vs 2 6 more threads
Better PassMark (Single core) score 1,461 vs 951 Around 55% better PassMark (Single core) score
More cores 4 vs 2 Twice as many cores; run more applications at once
Higher Maximum operating temperature 67.9 °C vs 55 °C Around 25% higher Maximum operating temperature
Newer Jun, 2009 vs Aug, 2007 Release date over 1 years later
Much better overclocked clock speed (Water) 4.45 GHz vs 2.8 GHz Around 60% better overclocked clock speed (Water)
Front view of AMD Opteron 2222

Reasons to consider the
AMD Opteron 2222

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Much lower typical power consumption 77.19W vs 212W 2.7x lower typical power consumption
Significantly more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Much lower annual home energy cost 22.89 $/year vs 82.69 $/year 3.6x lower annual home energy cost
Much lower annual commercial energy cost 83.22 $/year vs 211.12 $/year 2.5x lower annual commercial energy cost

Benchmarks Real world tests of Core i7 975 vs Opteron 2222

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

Core i7 975
152,250 MB/s
Opteron 2222
129,100 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 975  vs
Opteron 2222 
Clock speed 3.33 GHz 3 GHz
Cores Quad core Dual core
Socket type
LGA 1366
F
Is unlocked Yes No

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 130W 95W
Annual home energy cost 82.69 $/year 22.89 $/year
Annual commercial energy cost 211.12 $/year 83.22 $/year
Performance per watt 0.93 pt/W 1.3 pt/W
Typical power consumption 212W 77.19W

details

Core i7 975  vs
Opteron 2222 
Threads 8 2
L2 cache 1 MB 2 MB
L2 cache per core 0.25 MB/core 1 MB/core
L3 cache 8 MB 1 MB
L3 cache per core 2 MB/core 0.5 MB/core
Manufacture process 45 nm 90 nm
Max CPUs 1 2
Clock multiplier 25 15
Voltage range 0.8 - 1.38V 1.3 - UnknownV
Operating temperature 5 - 67.9°C 0 - 55°C

overclocking

Overclocked clock speed 4.46 GHz 3.23 GHz
Overclocked clock speed (Water) 4.45 GHz 2.8 GHz
Overclocked clock speed (Air) 4.46 GHz 3.23 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
Intel Core i7 975
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AMD Opteron 2222
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