CPUBoss Review Our evaluation of 2920XM vs 2720QM among laptop CPUs (over 15W)

Performance

Benchmark performance using all cores
Core i7 2920XM
8.7
Core i7 2720QM
7.6
Core i5 2520M
4.1
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance
Core i7 2920XM
3.3
Core i7 2720QM
2.1
Core i5 2520M
2.2
PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics
Core i7 2920XM
n.d.
Core i7 2720QM
n.d.
Core i5 2520M
n.d.
Sky Diver and Cloud Gate

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing
Core i7 2920XM
n.d.
Core i7 2720QM
0.0
Core i5 2520M
n.d.
CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?
Core i7 2920XM
1.3
Core i7 2720QM
0.0
Core i5 2520M
0.3
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?
Core i7 2920XM
6.9
Core i7 2720QM
7.4
Core i5 2520M
8.8
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more
4.9

CPUBoss Score

Combination of all six facets
Core i7 2920XM
4.9
Core i7 2720QM
0.0
Core i5 2520M
1.1

Winner
Intel Core i7 2920XM 

CPUBoss recommends the Intel Core i7 2920XM  based on its .

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VS

Intel Core i7 2920XM

Front view of Intel Core i7 2920XM
Front view of Intel Core i7 2720QM

Intel Core i7 2720QM

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Differences What are the advantages of each

Front view of Intel Core i7 2920XM

Reasons to consider the
Intel Core i7 2920XM

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Front view of Intel Core i7 2720QM

Reasons to consider the
Intel Core i7 2720QM

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CPUBoss is not aware of any important advantages of the 2720QM vs the 2920XM Extreme Edition.

Benchmarks Real world tests of Core i7 2920XM vs 2720QM

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i7 2920XM
10,503.5
Core i7 2720QM
9,184

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i7 2920XM
2,808
Core i7 2720QM
2,545

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i7 2920XM
2,335 MB/s
Core i7 2720QM
2,140,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Core i7 2920XM
9,899
Core i7 2720QM
8,244

GeekBench (64-bit) Data courtesy Primate Labs

Core i7 2920XM
13,578
Core i7 2720QM
9,379

GeekBench

Core i7 2920XM
13,578
Core i7 2720QM
11,389

PassMark Data courtesy Passmark

Core i7 2920XM
7,066
Core i7 2720QM
6,101

PassMark (Single Core)

Core i7 2920XM
1,656
Core i7 2720QM
1,455

Specifications Full list of technical specs

summary

 Core i7 2920XM  vs
2720QM 
Clock speed 2.5 GHz 2.2 GHz
Turbo clock speed 3.5 GHz 3.3 GHz
Cores Quad core Quad core
Socket type
rPGA 988B
BGA 1224
Is unlocked Yes No

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

power consumption
TDP 55W 45W
Annual home energy cost 13.25 $/year 10.84 $/year
Performance per watt 3.61 pt/W 17.94 pt/W
Typical power consumption 44.69W 36.56W

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

details

 Core i7 2920XM  vs
2720QM 
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 6 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 1 1
Clock multiplier 25 22
Operating temperature Unknown - 100°C Unknown - 100°C

overclocking
Overclocked clock speed 4.22 GHz 2.93 GHz
Overclocked clock speed (Water) 2.5 GHz 2.2 GHz
Overclocked clock speed (Air) 4.22 GHz 2.93 GHz

integrated graphics
GPU GPU GPU
Label Intel® HD Graphics 3000 Intel HD Graphics 3000
Number of displays supported 2 2
GPU clock speed 650 MHz 650 MHz
Turbo clock speed 1,300 MHz 1,300 MHz

memory controller
Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3-1066
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
Intel Core i7 2920XM
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Intel Core i7 2720QM
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