CPUBoss Review Our evaluation of 2500K vs 2500 among desktop CPUs (over 75W)

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

Fire Strike

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?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

8.5

CPUBoss Score

Combination of all six facets

Winner
Intel Core i5 2500K 

CPUBoss recommends the Intel Core i5 2500K  based on its .

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VS

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
Much better overclocked clock speed (Air) 5 GHz vs 3.69 GHz More than 35% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.79 GHz vs 4.23 GHz Around 15% better overclocked clock speed (Water)
Front view of Intel Core i5 2500

Reasons to consider the
Intel Core i5 2500

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Much lower typical power consumption 77.19W vs 112.55W More than 30% lower typical power consumption
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Much lower annual home energy cost 22.89 $/year vs 41.29 $/year Around 45% lower annual home energy cost
Much lower annual commercial energy cost 83.22 $/year vs 110.03 $/year Around 25% lower annual commercial energy cost

Benchmarks Real world tests of Core i5 2500K vs 2500

PCMark 8 Home 3.0 Accelerated Data courtesy FutureMark

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
Core i5 2500
2,410,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench (64-bit) Data courtesy Primate Labs

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i5 2500K  vs
2500 
Clock speed 3.3 GHz 3.3 GHz
Turbo clock speed 3.7 GHz 3.7 GHz
Cores Quad core Quad core
Socket type
LGA 1155
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
AVX
SSE3
EM64T
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 95W 95W
Annual home energy cost 41.29 $/year 22.89 $/year
Annual commercial energy cost 110.03 $/year 83.22 $/year
Performance per watt 6.77 pt/W 9.02 pt/W
Typical power consumption 112.55W 77.19W

bus

Architecture DMI DMI
Number of links 1 1
Transfer rate 5,000 MT/s 5,000 MT/s

details

Core i5 2500K  vs
2500 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 6 MB 6 MB
L3 cache per core 1.5 MB/core 1.5 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 1 1
Clock multiplier 33 33
Operating temperature 5 - 72.6°C Unknown - 72.6°C

overclocking

Overclock popularity 3,179 57
Overclocked clock speed 5 GHz 3.69 GHz
Overclocked clock speed (Water) 4.79 GHz 4.23 GHz
Overclocked clock speed (Air) 5 GHz 3.69 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 3000 Intel® HD Graphics 2000
Number of displays supported 2 2
GPU clock speed 850 MHz 850 MHz
Turbo clock speed 1,100 MHz 1,100 MHz

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 32,768 MB 32,768 MB
Intel Core i5 2500K
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Intel Core i5 2500
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