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Intel Core i7 620LM

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Front view of Intel Core i7 620LM

Differences What are the advantages of each

Front view of Intel Core i7 620LM

Reasons to consider the
Intel Core i7 620LM

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Much better 3DMark06 CPU score 2,358 vs 19.9 Around 118.5x better 3DMark06 CPU score
Significantly higher turbo clock speed 2.8 GHz vs 1.84 GHz More than 50% higher turbo clock speed
Higher clock speed 2 GHz vs 1.44 GHz Around 40% higher clock speed
Supports dynamic frequency scaling Yes vs No Somewhat common; Allows for maximum performance when needed, while conserving power and minimizing heat production when not needed
Better geekbench 3 single core score 1,379 vs 761 More than 80% better geekbench 3 single core score
Higher GPU clock speed 266 MHz vs 200 MHz Around 35% higher GPU clock speed
Better overclocked clock speed (Air) 2 GHz vs 1.53 GHz More than 30% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 2 GHz vs 1.44 GHz Around 40% better overclocked clock speed (Water)
Front view of Intel Atom x5 x5-Z8300

Reasons to consider the
Intel Atom x5 x5-Z8300

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much better performance per dollar 5.43 pt/$ vs 1.33 pt/$ More than 4x better performance per dollar
Significantly 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
Much newer manufacturing process 14 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Newer Apr, 2015 vs Jan, 2010 Release date over 5 years later
More cores 4 vs 2 Twice as many cores; run more applications at once

Benchmarks Real world tests of Core i7 620LM vs Atom x5 x5-Z8300

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 620LM
962,800 MB/s
Atom x5 x5-Z8300
279,050 MB/s

3D Mark 06 (CPU)

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 620LM  vs
Atom x5 x5-Z8300 
Clock speed 2 GHz 1.44 GHz
Turbo clock speed 2.8 GHz 1.84 GHz
Cores Dual core Quad core
Is unlocked No Yes

features

Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes No

power consumption

Typical power consumption 20.31W N/A

bus

Architecture DMI FSB
Number of links 1 1

details

Core i7 620LM  vs
Atom x5 x5-Z8300 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 1 MB 2 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
Manufacture process 32 nm 14 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 2 GHz 1.53 GHz
Overclocked clock speed (Water) 2 GHz 1.44 GHz
Overclocked clock speed (Air) 2 GHz 1.53 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics Intel® HD Graphics
Number of displays supported 2 2
GPU clock speed 266 MHz 200 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1066
DDR3-800
DDR3
Channels Dual Channel Single Channel
Maximum bandwidth 17,066.66 MB/s 6,400 MB/s
Maximum memory size 8,192 MB 2,048 MB
Intel Core i7 620LM
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Intel Atom x5 x5-Z8300
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