CPUBoss Review Our evaluation of 2820QM vs 3320M 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

6.5

CPUBoss Score

Combination of all six facets

Winner
Intel Core i7 2820QM 

CPUBoss recommends the Intel Core i7 2820QM  based on its .

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VS

Differences What are the advantages of each

Front view of Intel Core i7 2820QM

Reasons to consider the
Intel Core i7 2820QM

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CPUBoss is not aware of any important advantages of the Core i7 2820QM vs the Core i5 3320M.

Front view of Intel Core i5 3320M

Reasons to consider the
Intel Core i5 3320M

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CPUBoss is not aware of any important advantages of the Core i5 3320M vs the Core i7 2820QM.

Benchmarks Real world tests of Core i7 2820QM vs i5 3320M

CompuBench 1.5 (Ocean surface simulation) Data courtesy CompuBench

Core i7 2820QM
61.16 fps
Core i5 3320M
123.42 fps

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 2820QM
2,200,000 MB/s
Core i5 3320M
2,140,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench (64-bit) Data courtesy Primate Labs

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 2820QM  vs
i5 3320M 
Clock speed 2.3 GHz 2.6 GHz
Turbo clock speed 3.4 GHz 3.3 GHz
Cores Quad core Dual core
Socket type
BGA 1224
rPGA 988B
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
MMX
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 45W 35W
Annual home energy cost 10.84 $/year 8.43 $/year
Performance per watt 18.51 pt/W 12.64 pt/W
Typical power consumption 36.56W 28.44W

bus

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

details

Core i7 2820QM  vs
i5 3320M 
Architecture x86-64 x86-64
Threads 8 4
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 8 MB 3 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 1 1
Clock multiplier 23 26
Operating temperature Unknown - 100°C Unknown - 105°C

overclocking

Overclocked clock speed 3.04 GHz 3.07 GHz
Overclocked clock speed (Water) 2.3 GHz 2.6 GHz
Overclocked clock speed (Air) 3.04 GHz 3.07 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 3000 Intel® HD Graphics 4000
Number of displays supported 2 3
GPU clock speed 650 MHz 650 MHz
Turbo clock speed 1,300 MHz 1,200 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 12,800 MB/s
Maximum memory size 32,768 MB 32,768 MB
Intel Core i7 2820QM
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Intel Core i5 3320M
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