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Differences What are the advantages of each

Front view of Intel Core i7 3770T

Reasons to consider the
Intel Core i7 3770T

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Much more l3 cache 8 MB vs 0.5 MB 16x more l3 cache; more data can be stored in the l3 cache for quick access later
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much newer manufacturing process 22 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower typical power consumption 36.56W vs 137.63W 3.8x lower typical power consumption
Much better performance per watt 14.88 pt/W vs 0.79 pt/W Around 19x better performance per watt
Much more l3 cache per core 2 MB/core vs 0.13 MB/core 16x more l3 cache per core
Much lower annual home energy cost 10.84 $/year vs 48.4 $/year 4.5x lower annual home energy cost
Much lower annual commercial energy cost 39.42 $/year vs 137.53 $/year 3.5x lower annual commercial energy cost
Newer Apr, 2012 vs Jan, 2010 Release date over 2 years later
Front view of AMD Athlon II X4 635

Reasons to consider the
AMD Athlon II X4 635

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Much more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Significantly higher clock speed 2.9 GHz vs 2.5 GHz More than 15% higher clock speed
Much more l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Better overclocked clock speed (Air) 3.58 GHz vs 3.5 GHz Almost the same
Higher Maximum operating temperature 71 °C vs 69.8 °C Almost the same
Significantly better overclocked clock speed (Water) 2.9 GHz vs 2.5 GHz More than 15% better overclocked clock speed (Water)

Benchmarks Real world tests of Core i7 3770T vs Athlon II X4 635

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 3770T
2,150,000 MB/s
Athlon II X4 635
116,950 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 3770T  vs
Athlon II X4 635 
Clock speed 2.5 GHz 2.9 GHz
Cores Quad core Quad core
Socket type
LGA 1155
AM3
Is unlocked No No

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 45W 95W
Annual home energy cost 10.84 $/year 48.4 $/year
Annual commercial energy cost 39.42 $/year 137.53 $/year
Performance per watt 14.88 pt/W 0.79 pt/W
Typical power consumption 36.56W 137.63W

details

Core i7 3770T  vs
Athlon II X4 635 
Architecture x86-64 x86-64
Threads 8 4
L2 cache 1 MB 2 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 8 MB 0.5 MB
L3 cache per core 2 MB/core 0.13 MB/core
Manufacture process 22 nm 45 nm
Max CPUs 1 1
Voltage range 0.92 - 1.1V 0.85 - 1.25V
Operating temperature Unknown - 69.8°C Unknown - 71°C

overclocking

Overclocked clock speed 3.5 GHz 3.58 GHz
Overclocked clock speed (Water) 2.5 GHz 2.9 GHz
Overclocked clock speed (Air) 3.5 GHz 3.58 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics 4000 N/A
Number of displays supported 3 N/A
GPU clock speed 650 MHz N/A
Turbo clock speed 1,150 MHz N/A

bus

Clock speed 2,500 MHz 2,000 MHz
Intel Core i7 3770T
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AMD Athlon II X4 635
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