CPUBoss Review Our evaluation of 4800MQ vs 3920XM among laptop CPUs (over 15W)

Performance

Benchmark performance using all cores

PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Sky Diver and Cloud Gate

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

8.3

CPUBoss Score

Combination of all six facets

Winner
Intel Core i7 4800MQ 

CPUBoss recommends the Intel Core i7 4800MQ  based on its power consumption and value.

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VS

Intel Core i7 4800MQ

CPUBoss Winner
Front view of Intel Core i7 4800MQ

Differences What are the advantages of each

Front view of Intel Core i7 4800MQ

Reasons to consider the
Intel Core i7 4800MQ

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Newer Apr, 2013 vs Apr, 2012 Release date 11 months later
Lower typical power consumption 38.19W vs 44.69W Around 15% lower typical power consumption
Better geekbench 3 AES single core score 4,140,000 MB/s vs 2,620,000 MB/s Around 60% better geekbench 3 AES single core score
Better performance per dollar 2.09 pt/$ vs 0.92 pt/$ More than 2.2x better performance per dollar
Lower annual home energy cost 11.32 $/year vs 13.25 $/year Around 15% lower annual home energy cost
Front view of Intel Core i7 3920XM

Reasons to consider the
Intel Core i7 3920XM

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Significantly more l3 cache 8 MB vs 6 MB Around 35% more l3 cache; more data can be stored in the l3 cache for quick access later
Much higher Maximum operating temperature 105 °C vs 100 °C 5% higher Maximum operating temperature
Higher clock speed 2.9 GHz vs 2.7 GHz More than 5% higher clock speed
Much higher GPU clock speed 650 MHz vs 400 MHz Around 65% higher GPU clock speed
Higher turbo clock speed 3.8 GHz vs 3.7 GHz Around 5% higher turbo clock speed
Significantly more l3 cache per core 2 MB/core vs 1.5 MB/core Around 35% more l3 cache per core
Significantly better overclocked clock speed (Air) 4.48 GHz vs 3.79 GHz Around 20% better overclocked clock speed (Air)
Better PassMark score 9,168 vs 8,568 More than 5% better PassMark score
Better overclocked clock speed (Water) 2.9 GHz vs 2.7 GHz More than 5% better overclocked clock speed (Water)

Benchmarks Real world tests of Core i7 4800MQ vs 3920XM

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 4800MQ
4,140,000 MB/s
Core i7 3920XM
2,620,000 MB/s

3D Mark 11 (Physics)

3D Mark 06 (CPU)

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 4800MQ  vs
3920XM 
Clock speed 2.7 GHz 2.9 GHz
Turbo clock speed 3.7 GHz 3.8 GHz
Cores Quad core Quad core
Is unlocked No Yes

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 47W 55W
Annual home energy cost 11.32 $/year 13.25 $/year
Performance per watt 18.24 pt/W 18.42 pt/W
Typical power consumption 38.19W 44.69W

bus

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

details

Core i7 4800MQ  vs
3920XM 
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 6 MB 8 MB
L3 cache per core 1.5 MB/core 2 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 1 1
Operating temperature Unknown - 100°C Unknown - 105°C

overclocking

Overclocked clock speed 3.79 GHz 4.48 GHz
Overclocked clock speed (Water) 2.7 GHz 2.9 GHz
Overclocked clock speed (Air) 3.79 GHz 4.48 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 4600 Intel® HD Graphics 4000
Number of displays supported 3 3
GPU clock speed 400 MHz 650 MHz
Turbo clock speed 1,300 MHz 1,300 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3L-1600
DDR3L-1333
DDR3RS-1333
DDR3RS-1600
Channels Dual Channel Dual Channel
Supports ECC No No
Maximum bandwidth 25,600 MB/s 25,600 MB/s
Intel Core i7 4800MQ
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Intel Core i7 3920XM
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