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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 62.56W 2.2x lower typical power consumption
Much lower annual commercial energy cost 30.66 $/year vs 67.45 $/year 2.2x lower annual commercial energy cost
Much lower annual home energy cost 8.43 $/year vs 18.55 $/year 2.2x lower annual home energy cost
Newer Feb, 2014 vs Apr, 2012 Release date over 1 years later
Front view of Intel Core i7 3770

Reasons to consider the
Intel Core i7 3770

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Much higher clock speed 3.4 GHz vs 2.2 GHz Around 55% higher clock speed
Higher Maximum operating temperature 67.4 °C vs 66.35 °C Almost the same

Benchmarks Real world tests of Core i7 4785T vs 3770

PCMark 8 Home 3.0 Accelerated Data courtesy FutureMark

Sky Diver Data courtesy FutureMark

Cloud Gate 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 i7 4785T
3,250,000 MB/s
Core i7 3770
2,660,000 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 4785T  vs
3770 
Clock speed 2.2 GHz 3.4 GHz
Turbo clock speed 3.2 GHz 3.9 GHz
Cores Quad core Quad core
Socket type
LGA 1150
LGA 1155
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
DDR3
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
3770 
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
Clock multiplier 22 34
Operating temperature Unknown - 66.35°C Unknown - 67.4°C

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 4600 Intel® HD Graphics 4000
Number of displays supported 3 3
GPU clock speed 350 MHz 650 MHz
Turbo clock speed 1,200 MHz 1,150 MHz

power consumption

TDP 35W 77W
Annual home energy cost 8.43 $/year 18.55 $/year
Annual commercial energy cost 30.66 $/year 67.45 $/year
Performance per watt 23.51 pt/W 7.25 pt/W
Typical power consumption 28.44W 62.56W

bus

Architecture DMI 2.0 DMI
Number of links 0 1
Transfer rate 5,000 MT/s 5,000 MT/s
Intel Core i7 4785T
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Intel Core i7 3770
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