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Differences What are the advantages of each

Front view of Intel Pentium G645

Reasons to consider the
Intel Pentium G645

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Much more l2 cache 1 MB vs 0.25 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Much higher clock speed 2.9 GHz vs 1.9 GHz Around 55% higher clock speed
Much better PassMark score 2,602 vs 1,043 Around 2.5x better PassMark score
Much better geekbench 2 (32-bit) score 3,567 vs 1,157 More than 3x better geekbench 2 (32-bit) score
More cores 2 vs 1 Twice as many cores; run more applications at once
Much better turbo clock speed 1,100 MHz vs 1,000 MHz 10% better turbo clock speed
Much better overclocked clock speed (Air) 3 GHz vs 2.02 GHz Around 50% better overclocked clock speed (Air)
Much more l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Significantly higher Maximum operating temperature 69.1 °C vs 65.5 °C More than 5% higher Maximum operating temperature
Much better overclocked clock speed (Water) 3.09 GHz vs 2.01 GHz Around 55% better overclocked clock speed (Water)
Front view of Intel Celeron G465

Reasons to consider the
Intel Celeron G465

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Much lower typical power consumption 28.44W vs 52.81W More than 45% lower typical power consumption
Significantly lower annual commercial energy cost 30.66 $/year vs 56.94 $/year More than 45% lower annual commercial energy cost
Significantly lower annual home energy cost 8.43 $/year vs 15.66 $/year More than 45% lower annual home energy cost

Benchmarks Real world tests of Pentium G645 vs Celeron G465

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 G645
143,500 MB/s
Celeron G465
72,600 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Pentium G645  vs
Celeron G465 
Clock speed 2.9 GHz 1.9 GHz
Cores Dual core Single core
Socket type
LGA 1155

features

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

power consumption

TDP 65W 35W
Annual home energy cost 15.66 $/year 8.43 $/year
Annual commercial energy cost 56.94 $/year 30.66 $/year
Performance per watt 2.37 pt/W 1.91 pt/W
Typical power consumption 52.81W 28.44W

bus

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

details

Pentium G645  vs
Celeron G465 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 1 MB 0.25 MB
L2 cache per core 0.5 MB/core 0.25 MB/core
L3 cache 3 MB 1.5 MB
L3 cache per core 1.5 MB/core 1.5 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 1 1
Clock multiplier 29 19
Operating temperature Unknown - 69.1°C Unknown - 65.5°C

overclocking

Overclocked clock speed 3 GHz 2.02 GHz
Overclocked clock speed (Water) 3.09 GHz 2.01 GHz
Overclocked clock speed (Air) 3 GHz 2.02 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics Intel® HD Graphics
Number of displays supported 2 2
GPU clock speed 850 MHz 650 MHz
Turbo clock speed 1,100 MHz 1,000 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1066
DDR3
Channels Dual Channel Dual Channel
Maximum bandwidth 17,066.66 MB/s 17,066.66 MB/s
Maximum memory size 32,768 MB 32,768 MB
Intel Pentium G645
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Intel Celeron G465
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