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Differences What are the advantages of each

Front view of Intel Core i7 4770R

Reasons to consider the
Intel Core i7 4770R

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Much newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better turbo clock speed 1,300 MHz vs 1,100 MHz Around 20% better turbo clock speed
More number of displays supported 3 vs 2 1 more number of displays supported
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 higher GPU clock speed 850 MHz vs 200 MHz 4.2x higher GPU clock speed

Benchmarks Real world tests of Core i7 4770R vs i5 2500K

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 4770R
4,880,000 MB/s
Core i5 2500K
2,530,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench (64-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 4770R  vs
i5 2500K 
Clock speed 3.2 GHz 3.3 GHz
Turbo clock speed 3.9 GHz 3.7 GHz
Cores Quad core Quad core
Is unlocked No Yes

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 65W 95W
Annual home energy cost 15.66 $/year 41.29 $/year
Annual commercial energy cost 56.94 $/year 110.03 $/year
Performance per watt 20.21 pt/W 6.8 pt/W
Typical power consumption 52.81W 112.55W

bus

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

details

Core i7 4770R  vs
i5 2500K 
Architecture x86-64 x86-64
Threads 8 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 22 nm 32 nm
Max CPUs 1 1
Operating temperature Unknown - 66.45°C 5 - 72.6°C

overclocking

Overclocked clock speed 3.82 GHz 4.99 GHz
Overclocked clock speed (Water) 3.2 GHz 4.79 GHz
PassMark (Overclocked) 3,694.7 5,433.6
Overclocked clock speed (Air) 3.82 GHz 4.99 GHz

integrated graphics

GPU GPU GPU
Label Intel® Iris™ Pro Graphics 5200 Intel® HD Graphics 3000
Number of displays supported 3 2
GPU clock speed 200 MHz 850 MHz
Turbo clock speed 1,300 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 12,800 MB/s 21,333.32 MB/s
Maximum memory size 32,768 MB 32,768 MB
Intel Core i7 4770R
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Intel Core i5 2500K
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