CPUBoss Review Our evaluation of 2020M vs 3120M 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

No winner declared

Too close to call

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VS
Front view of Intel Core i3 3120M

Intel Core i3 3120M

CPUBoss Winner

Differences What are the advantages of each

Front view of Intel Pentium 2020M

Reasons to consider the
Intel Pentium 2020M

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Slightly better performance per dollar 0.95 pt/$ vs 0.57 pt/$ More than 65% better performance per dollar
Front view of Intel Core i3 3120M

Reasons to consider the
Intel Core i3 3120M

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More l3 cache 3 MB vs 2 MB 50% more l3 cache; more data can be stored in the l3 cache for quick access later
More threads 4 vs 2 Twice as many threads
Slightly higher clock speed 2.5 GHz vs 2.4 GHz Around 5% higher clock speed
Better geekbench 2 (64-bit) score 4,075 vs 3,291 Around 25% better geekbench 2 (64-bit) score
Better geekbench 2 (32-bit) score 3,978 vs 3,156 More than 25% better geekbench 2 (32-bit) score
Significantly more l3 cache per core 1.5 MB/core vs 1 MB/core 50% more l3 cache per core
Better CompuBench 1.5 face detection score 5.68 mPixels/s vs 2.77 mPixels/s More than 2x better CompuBench 1.5 face detection score
Better 3DMark06 CPU score 3,057 vs 2,449 Around 25% better 3DMark06 CPU score
Better geekbench 3 Multi-Core score 4,146 vs 3,289 More than 25% better geekbench 3 Multi-Core score

Benchmarks Real world tests of Pentium 2020M vs Core i3 3120M

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

Pentium 2020M
3.24 mHash/s
Core i3 3120M
9.79 mHash/s

CompuBench 1.5 (Face detection)

Pentium 2020M
2.77 mPixels/s
Core i3 3120M
5.68 mPixels/s

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

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

Pentium 2020M
125,700 MB/s
Core i3 3120M
131,100 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Pentium 2020M  vs
Core i3 3120M 
Clock speed 2.4 GHz 2.5 GHz
Cores Dual core Dual core
Socket type
rPGA 988B

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 35W 35W
Annual home energy cost 8.43 $/year 8.43 $/year
Performance per watt 3.64 pt/W 5.04 pt/W
Typical power consumption 28.44W 28.44W

bus

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

details

Pentium 2020M  vs
Core i3 3120M 
Architecture x86-64 x86-64
Threads 2 4
L2 cache 1 MB 1 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
L3 cache 2 MB 3 MB
L3 cache per core 1 MB/core 1.5 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 1 1
Clock multiplier 24 25
Operating temperature Unknown - 90°C Unknown - 90°C

overclocking

Overclocked clock speed 2.4 GHz 2.53 GHz
Overclocked clock speed (Water) 2.4 GHz 2.5 GHz
Overclocked clock speed (Air) 2.4 GHz 2.53 GHz

integrated graphics

GPU GPU GPU
Label HD Graphics Intel® HD Graphics 4000
Number of displays supported 3 3
GPU clock speed 650 MHz 650 MHz
Turbo clock speed 1,100 MHz 1,100 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3L-1600
DDR3-1333
DDR3L-1333
DDR3RS-1600
DDR3RS-1333
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 Pentium 2020M
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Intel Core i3 3120M
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