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Differences What are the advantages of each

Front view of Intel Core i5 650

Reasons to consider the
Intel Core i5 650

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Much more l2 cache 1 MB vs 0.5 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Much better overclocked clock speed (Water) 5.08 GHz vs 3.2 GHz Around 60% better overclocked clock speed (Water)
Front view of Intel Core i3 550

Reasons to consider the
Intel Core i3 550

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Much lower typical power consumption 59.31W vs 100.22W More than 40% lower typical power consumption
Significantly better overclocked clock speed (Air) 4.54 GHz vs 4.31 GHz More than 5% better overclocked clock speed (Air)
Much lower annual home energy cost 17.59 $/year vs 37.54 $/year 2.1x lower annual home energy cost
Much lower annual commercial energy cost 63.95 $/year vs 96.89 $/year Around 35% lower annual commercial energy cost

Benchmarks Real world tests of Core i5 650 vs i3 550

PCMark 8 Home 3.0 Accelerated Data courtesy FutureMark

Core i5 650
1,826
Core i3 550
1,820

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i5 650
4,709
Core i3 550
4,220

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i5 650
2,168
Core i3 550
2,011

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i5 650
1,550,000 MB/s
Core i3 550
128,500 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Core i5 650
4,675
Core i3 550
4,118

GeekBench (64-bit) Data courtesy Primate Labs

Core i5 650
4,902
Core i3 550
4,562

PassMark Data courtesy Passmark

Core i5 650
3,116
Core i3 550
2,834

PassMark (Single Core)

Core i5 650
1,319
Core i3 550
1,299

Specifications Full list of technical specs

summary

Core i5 650  vs
i3 550 
Clock speed 3.2 GHz 3.2 GHz
Cores Dual core Dual core
Socket type
LGA 1156
Is unlocked No No

features

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

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics Intel® HD Graphics
Number of displays supported 2 2
GPU clock speed 733 MHz 733 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3
Channels Dual Channel Dual Channel
Maximum bandwidth 21,333.32 MB/s 21,333.32 MB/s
Maximum memory size 16,773.12 MB 16,773.12 MB

details

Core i5 650  vs
i3 550 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 1 MB 0.5 MB
L2 cache per core 0.5 MB/core 0.25 MB/core
L3 cache 4 MB 4 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 32 nm 32 nm
Transistor count 382,000,000 382,000,000
Max CPUs 1 1
Clock multiplier 24 24
Voltage range 0.65 - 1.4V 0.65 - 1.4V
Operating temperature Unknown - 72.6°C Unknown - 72.6°C

overclocking

Overclock popularity 21 17
Overclocked clock speed 4.31 GHz 4.54 GHz
Overclocked clock speed (Water) 5.08 GHz 3.2 GHz
Overclocked clock speed (Air) 4.31 GHz 4.54 GHz

power consumption

TDP 73W 73W
Annual home energy cost 37.54 $/year 17.59 $/year
Annual commercial energy cost 96.89 $/year 63.95 $/year
Performance per watt 4.67 pt/W 1.98 pt/W
Typical power consumption 100.22W 59.31W

bus

Architecture DMI DMI
Number of links 1 1
Transfer rate 2,500 MT/s 2,500 MT/s
Intel Core i5 650
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Intel Core i3 550
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