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Intel Core i5 2500K

CPUBoss Winner
Front view of Intel Core i5 2500K

Differences What are the advantages of each

Front view of Intel Core i5 2500K

Reasons to consider the
Intel Core i5 2500K

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Higher clock speed 3.3 GHz vs 3 GHz Around 10% higher clock speed
Much better overclocked clock speed (Air) 4.98 GHz vs 3 GHz More than 65% better overclocked clock speed (Air)
Much better performance per watt 6.79 pt/W vs 1.62 pt/W Around 4.2x better performance per watt
Better PassMark (Single core) score 1,863 vs 1,306 Around 45% better PassMark (Single core) score
Much better overclocked clock speed (Water) 4.88 GHz vs 3 GHz Around 65% better overclocked clock speed (Water)
Slightly better PassMark score 6,383 vs 5,401 Around 20% better PassMark score
Higher Maximum operating temperature 72.6 °C vs 68 °C More than 5% higher Maximum operating temperature
More l3 cache per core 1.5 MB/core vs 1.33 MB/core Around 15% more l3 cache per core
Front view of AMD Opteron 4332 HE

Reasons to consider the
AMD Opteron 4332 HE

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Much more l2 cache 6 MB vs 1 MB 6x more l2 cache; more data can be stored in the l2 cache for quick access later
Much lower typical power consumption 52.81W vs 112.55W 2.1x lower typical power consumption
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
Slightly more l3 cache 8 MB vs 6 MB Around 35% more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 6 vs 4 2 more cores; run more applications at once
Much lower annual home energy cost 15.66 $/year vs 41.29 $/year 2.6x lower annual home energy cost
Much lower annual commercial energy cost 56.94 $/year vs 110.03 $/year Around 50% lower annual commercial energy cost
More threads 6 vs 4 2 more threads
Newer Dec, 2012 vs Jan, 2011 Release date over 1 years later

Benchmarks Real world tests of Core i5 2500K vs Opteron 4332 HE

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 i5 2500K
2,530,000 MB/s
Opteron 4332 HE
1,700 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i5 2500K  vs
Opteron 4332 HE 
Clock speed 3.3 GHz 3 GHz
Turbo clock speed 3.7 GHz 3.7 GHz
Cores Quad core Hexa core
Socket type
LGA 1155
C32
Is unlocked Yes No

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
AVX 1.1
SSE2
F16C
MMX
SSE4
XOP
AVX
SSE3
EM64T
SSE
CLMUL
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
CVT16
AMD-V
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 95W 65W
Annual home energy cost 41.29 $/year 15.66 $/year
Annual commercial energy cost 110.03 $/year 56.94 $/year
Performance per watt 6.79 pt/W 1.62 pt/W
Typical power consumption 112.55W 52.81W

bus

Architecture DMI HyperTransport 3.0
Transfer rate 5,000 MT/s 6,400 MT/s

details

Core i5 2500K  vs
Opteron 4332 HE 
Threads 4 6
L2 cache 1 MB 6 MB
L2 cache per core 0.25 MB/core 1 MB/core
L3 cache 6 MB 8 MB
L3 cache per core 1.5 MB/core 1.33 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 1 2
Clock multiplier 33 15
Operating temperature 5 - 72.6°C Unknown - 68°C

overclocking

Overclocked clock speed 4.98 GHz 3 GHz
Overclocked clock speed (Water) 4.88 GHz 3 GHz
Overclocked clock speed (Air) 4.98 GHz 3 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics 3000 N/A
Latest DirectX 10.1 N/A
Number of displays supported 2 N/A
GPU clock speed 850 MHz N/A
Turbo clock speed 1,100 MHz N/A
3DMark06 5,275 N/A

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3
Channels Dual Channel Dual Channel
Supports ECC No Yes
Maximum bandwidth 21,333.32 MB/s 12,800 MB/s
Intel Core i5 2500K
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AMD Opteron 4332 HE
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