CPUBoss Review Our evaluation of 3930K vs 2427 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

5.4

CPUBoss Score

Combination of all six facets

Winner
Intel Core i7 3930K 

CPUBoss recommends the Intel Core i7 3930K  based on its performance and single-core performance.

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VS

Differences What are the advantages of each

Front view of Intel Core i7 3930K

Reasons to consider the
Intel Core i7 3930K

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Significantly higher clock speed 3.2 GHz vs 2.2 GHz More than 45% higher clock speed
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More l3 cache 12 MB vs 6 MB 2x more l3 cache; more data can be stored in the l3 cache for quick access later
Much better PassMark (Single core) score 1,949 vs 594 More than 3.2x better PassMark (Single core) score
Much better PassMark score 12,084 vs 3,069 Around 4x better PassMark score
Much better overclocked clock speed (Air) 4.67 GHz vs 3.2 GHz More than 45% better overclocked clock speed (Air)
Significantly more l3 cache per core 2 MB/core vs 1 MB/core 2x more l3 cache per core
More threads 12 vs 6 Twice as many threads
Significantly better performance per watt 5.5 pt/W vs 1.41 pt/W Around 4x better performance per watt
Higher Maximum operating temperature 66.8 °C vs 55 °C More than 20% higher Maximum operating temperature
Much better overclocked clock speed (Water) 4.67 GHz vs 2.2 GHz More than 2x better overclocked clock speed (Water)
Newer Nov, 2011 vs Jun, 2009 Release date over 2 years later
Front view of AMD Opteron 2427

Reasons to consider the
AMD Opteron 2427

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Much lower typical power consumption 60.94W vs 172.6W 2.8x lower typical power consumption
Significantly more l2 cache 3 MB vs 2 MB 50% more l2 cache; more data can be stored in the l2 cache for quick access later
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Much lower annual home energy cost 18.07 $/year vs 56.96 $/year 3.2x lower annual home energy cost
Much lower annual commercial energy cost 65.7 $/year vs 177.83 $/year 2.7x lower annual commercial energy cost
More l2 cache per core 0.5 MB/core vs 0.33 MB/core More than 50% more l2 cache per core

Benchmarks Real world tests of Core i7 3930K vs Opteron 2427

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 3930K
2,430,000 MB/s
Opteron 2427
94.2 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 3930K  vs
Opteron 2427 
Clock speed 3.2 GHz 2.2 GHz
Cores Hexa core Hexa core
Socket type
LGA 2011
F
Is unlocked Yes No

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 130W 75W
Annual home energy cost 56.96 $/year 18.07 $/year
Annual commercial energy cost 177.83 $/year 65.7 $/year
Performance per watt 5.5 pt/W 1.41 pt/W
Typical power consumption 172.6W 60.94W

bus

Architecture DMI 2.0 HyperTransport 3.0

details

Core i7 3930K  vs
Opteron 2427 
Threads 12 6
L2 cache 2 MB 3 MB
L2 cache per core 0.33 MB/core 0.5 MB/core
L3 cache 12 MB 6 MB
L3 cache per core 2 MB/core 1 MB/core
Manufacture process 32 nm 45 nm
Max CPUs 1 2
Clock multiplier 32 11
Voltage range 0.6 - 1.35V 1 - UnknownV
Operating temperature Unknown - 66.8°C 0 - 55°C

overclocking

Overclocked clock speed 4.67 GHz 3.2 GHz
Overclocked clock speed (Water) 4.67 GHz 2.2 GHz
Overclocked clock speed (Air) 4.67 GHz 3.2 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 3930K
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AMD Opteron 2427
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