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Intel Core i7 4785T

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 Front view of Intel Core i7 4785T
Front view of Intel Core i7 4770

Intel Core i7 4770

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Differences What are the advantages of each

Front view of Intel Core i7 4785T

Reasons to consider the
Intel Core i7 4785T

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Much lower typical power consumption 28.44W vs 68.25W 2.4x lower typical power consumption
Much lower annual commercial energy cost 30.66 $/year vs 73.58 $/year 2.4x lower annual commercial energy cost
Much lower annual home energy cost 8.43 $/year vs 20.24 $/year 2.4x lower annual home energy cost
Newer Feb, 2014 vs Jun, 2013 Release date 8 months later
Front view of Intel Core i7 4770

Reasons to consider the
Intel Core i7 4770

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Much higher clock speed 3.4 GHz vs 2.2 GHz Around 55% higher clock speed
Much higher Maximum operating temperature 72.72 °C vs 66.35 °C Around 10% higher Maximum operating temperature

Benchmarks Real world tests of Core i7 4785T vs 4770

PCMark 8 Home 3.0 Accelerated Data courtesy FutureMark

Core i7 4785T
2,879
Core i7 4770
3,198

Sky Diver Data courtesy FutureMark

Core i7 4785T
3,578
Core i7 4770
3,547

Cloud Gate Data courtesy FutureMark

Core i7 4785T
6,464
Core i7 4770
7,496

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i7 4785T
9,908
Core i7 4770
13,342

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i7 4785T
2,736
Core i7 4770
3,514

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i7 4785T
3,250,000 MB/s
Core i7 4770
4,500,000 MB/s

PassMark Data courtesy Passmark

Core i7 4785T
7,591
Core i7 4770
9,523

PassMark (Single Core)

Core i7 4785T
1,783
Core i7 4770
2,029

Specifications Full list of technical specs

summary

 Core i7 4785T  vs
4770 
Clock speed 2.2 GHz 3.4 GHz
Turbo clock speed 3.2 GHz 3.9 GHz
Cores Quad core Quad core
Is unlocked No No

features
Has a NX bit Yes Yes
Supports trusted computing Yes 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

memory controller
Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3L-1600
DDR3-1333
Channels Dual Channel Dual Channel
Supports ECC No No
Maximum bandwidth 25,600 MB/s 25,600 MB/s
Maximum memory size 32,768 MB 32,768 MB

details

 Core i7 4785T  vs
4770 
Architecture x86-64 x86-64
Threads 8 8
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 8 MB 8 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 1 1
Operating temperature Unknown - 66.35°C Unknown - 72.72°C

integrated graphics
GPU GPU GPU
Label Intel® HD Graphics 4600 Intel® HD Graphics 4600
Number of displays supported 3 3
GPU clock speed 350 MHz 350 MHz
Turbo clock speed 1,200 MHz 1,200 MHz

power consumption
TDP 35W 84W
Annual home energy cost 8.43 $/year 20.24 $/year
Annual commercial energy cost 30.66 $/year 73.58 $/year
Performance per watt 23.51 pt/W 10.41 pt/W
Typical power consumption 28.44W 68.25W

bus
Architecture DMI 2.0 DMI 2.0
Number of links 0 0
Transfer rate 5,000 MT/s 5,000 MT/s
Intel Core i7 4785T
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