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Front view of Intel Core i5 650

Intel Core i5 650

CPUBoss Winner

Differences What are the advantages of each

Front view of Intel Xeon X3470

Reasons to consider the
Intel Xeon X3470

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More l3 cache 8 MB vs 4 MB 2x more l3 cache; more data can be stored in the l3 cache for quick access later
Significantly lower typical power consumption 77.19W vs 100.22W Around 25% lower typical power consumption
More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 8 vs 4 Twice as many threads
Better PassMark score 5,195 vs 3,116 More than 65% better PassMark score
Much lower annual home energy cost 22.89 $/year vs 37.54 $/year Around 40% lower annual home energy cost
Lower annual commercial energy cost 83.22 $/year vs 96.89 $/year Around 15% lower annual commercial energy cost
Front view of Intel Core i5 650

Reasons to consider the
Intel Core i5 650

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Much better performance per dollar 3.83 pt/$ vs 0.4 pt/$ More than 9.5x better performance per dollar
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 3.2 GHz vs 2.93 GHz Around 10% higher clock speed
Significantly better performance per watt 4.67 pt/W vs 1.43 pt/W More than 3.2x better performance per watt
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Better overclocked clock speed (Air) 4.31 GHz vs 3.96 GHz Around 10% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 5.08 GHz vs 4.39 GHz More than 15% better overclocked clock speed (Water)
Newer Jan, 2010 vs Sep, 2009 Release date 3 months later

Benchmarks Real world tests of Xeon X3470 vs Core i5 650

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon X3470
Core i5 650

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon X3470
Core i5 650

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon X3470
108 MB/s
Core i5 650
1,550,000 MB/s

PassMark Data courtesy Passmark

Xeon X3470
Core i5 650

PassMark (Single Core)

Xeon X3470
Core i5 650

Specifications Full list of technical specs


Xeon X3470  vs
Core i5 650 
Clock speed 2.93 GHz 3.2 GHz
Turbo clock speed 3.6 GHz 3.46 GHz
Cores Quad core Dual core
Socket type
LGA 1156


Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 95W 73W
Annual home energy cost 22.89 $/year 37.54 $/year
Annual commercial energy cost 83.22 $/year 96.89 $/year
Performance per watt 1.43 pt/W 4.67 pt/W
Typical power consumption 77.19W 100.22W


Architecture DMI DMI
Number of links 1 1
Transfer rate 2,500 MT/s 2,500 MT/s


Xeon X3470  vs
Core i5 650 
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 4 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 45 nm 32 nm
Transistor count 774,000,000 382,000,000
Max CPUs 1 1
Clock multiplier 22 24
Voltage range 0.65 - 1.4V 0.65 - 1.4V
Operating temperature Unknown - 72.7°C Unknown - 72.6°C


Overclocked clock speed 3.96 GHz 4.31 GHz
Overclocked clock speed (Water) 4.39 GHz 5.08 GHz
Overclocked clock speed (Air) 3.96 GHz 4.31 GHz

integrated graphics

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

memory controller

Memory controller Built-in Built-in
Memory type
Channels Dual Channel Dual Channel
Maximum bandwidth 21,333.32 MB/s 21,333.32 MB/s
Maximum memory size 32,768 MB 16,773.12 MB
Intel Xeon X3470
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Intel Core i5 650
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