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Intel Core i7 4770K

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Front view of Intel Core i7 4770K

Differences What are the advantages of each

Front view of Intel Core i7 4770K

Reasons to consider the
Intel Core i7 4770K

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Significantly higher clock speed 3.5 GHz vs 2.5 GHz 40% higher clock speed
Much better performance per dollar 3.83 pt/$ vs 0.55 pt/$ Around 7x better performance per dollar
Higher turbo clock speed 3.9 GHz vs 3.1 GHz More than 25% higher turbo clock speed
Significantly newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More l3 cache 8 MB vs 3 MB Around 2.8x more l3 cache; more data can be stored in the l3 cache for quick access later
Much better performance per watt 11.31 pt/W vs 4.05 pt/W More than 2.8x better performance per watt
Much better overclocked clock speed (Air) 4.48 GHz vs 2.5 GHz Around 80% better overclocked clock speed (Air)
Significantly better PassMark score 10,016 vs 3,313 More than 3x better PassMark score
Significantly better turbo clock speed 1,250 MHz vs 1,100 MHz Around 15% better turbo clock speed
Significantly better PassMark (Single core) score 2,165 vs 1,321 Around 65% better PassMark (Single core) score
More number of displays supported 3 vs 2 1 more number of displays supported
More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 8 vs 4 Twice as many threads
More l3 cache per core 2 MB/core vs 1.5 MB/core Around 35% more l3 cache per core
Newer Jun, 2013 vs Feb, 2011 Release date over 2 years later
Much better overclocked clock speed (Water) 4.55 GHz vs 2.5 GHz More than 80% better overclocked clock speed (Water)
Front view of Intel Core i5 2515E

Reasons to consider the
Intel Core i5 2515E

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Much lower typical power consumption 28.44W vs 68.25W 2.4x lower typical power consumption
Much higher GPU clock speed 650 MHz vs 350 MHz More than 85% higher GPU clock speed
Much higher Maximum operating temperature 100 °C vs 72.72 °C Around 40% higher Maximum operating temperature
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Much lower annual home energy cost 8.43 $/year vs 20.24 $/year 2.4x lower annual home energy cost
Much lower annual commercial energy cost 30.66 $/year vs 73.58 $/year 2.4x lower annual commercial energy cost

Benchmarks Real world tests of Core i7 4770K vs i5 2515E

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 4770K  vs
i5 2515E 
Clock speed 3.5 GHz 2.5 GHz
Turbo clock speed 3.9 GHz 3.1 GHz
Cores Quad core Dual core
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
F16C
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
FMA3
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 84W 35W
Annual home energy cost 20.24 $/year 8.43 $/year
Annual commercial energy cost 73.58 $/year 30.66 $/year
Performance per watt 11.31 pt/W 4.05 pt/W
Typical power consumption 68.25W 28.44W

bus

Architecture DMI 2.0 DMI
Number of links 0 1
Transfer rate 5,000 MT/s 5,000 MT/s

details

Core i7 4770K  vs
i5 2515E 
Architecture x86-64 x86-64
Threads 8 4
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 8 MB 3 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 22 nm 32 nm
Max CPUs 1 1
Operating temperature Unknown - 72.72°C Unknown - 100°C

overclocking

Overclocked clock speed 4.48 GHz 2.5 GHz
Overclocked clock speed (Water) 4.55 GHz 2.5 GHz
Overclocked clock speed (Air) 4.48 GHz 2.5 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 4600 Intel® HD Graphics 3000
Number of displays supported 3 2
GPU clock speed 350 MHz 650 MHz
Turbo clock speed 1,250 MHz 1,100 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3L-1600
DDR3-1333
DDR3-1066
DDR3
Channels Dual Channel Dual Channel
Supports ECC No Yes
Maximum bandwidth 25,600 MB/s 21,333.32 MB/s
Maximum memory size 32,768 MB 16,998.4 MB
Intel Core i7 4770K
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Intel Core i5 2515E
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