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Front view of Intel Core i5 3470

Intel Core i5 3470

CPUBoss Winner

Differences What are the advantages of each

Front view of Intel Xeon E5645

Reasons to consider the
Intel Xeon E5645

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Significantly more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much better geekbench 3 Multi-Core score 20,172 vs 9,436 Around 2.2x better geekbench 3 Multi-Core score
More l3 cache 12 MB vs 6 MB 2x more l3 cache; more data can be stored in the l3 cache for quick access later
Significantly lower typical power consumption 65W vs 86.05W Around 25% lower typical power consumption
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
More threads 12 vs 4 Three times as many threads
Significantly better performance per watt 8.49 pt/W vs 4.41 pt/W More than 90% better performance per watt
More cores 6 vs 4 2 more cores; run more applications at once
More l3 cache per core 2 MB/core vs 1.5 MB/core Around 35% more l3 cache per core
Supports more RAM 294,912 MB vs 32,768 MB Supports 9x more RAM
Higher Maximum operating temperature 76.2 °C vs 67.4 °C Around 15% higher Maximum operating temperature
Much lower annual home energy cost 19.27 $/year vs 31.22 $/year Around 40% lower annual home energy cost
More l2 cache per core 0.33 MB/core vs 0.25 MB/core Around 35% more l2 cache per core
Lower annual commercial energy cost 70.08 $/year vs 84.62 $/year More than 15% lower annual commercial energy cost
Front view of Intel Core i5 3470

Reasons to consider the
Intel Core i5 3470

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Significantly higher turbo clock speed 3.6 GHz vs 2.67 GHz Around 35% higher turbo clock speed
Significantly higher clock speed 3.2 GHz vs 2.4 GHz Around 35% higher clock speed
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much better performance per dollar 2.7 pt/$ vs 1.2 pt/$ Around 2.2x better performance per dollar
Significantly newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly better PassMark (Single core) score 1,906 vs 1,083 More than 75% better PassMark (Single core) score
Newer Jun, 2012 vs Mar, 2010 Release date over 2 years later
Much better overclocked clock speed (Water) 4.09 GHz vs 2.4 GHz More than 70% better overclocked clock speed (Water)
Better overclocked clock speed (Air) 3.67 GHz vs 3.39 GHz Around 10% better overclocked clock speed (Air)

Benchmarks Real world tests of Xeon E5645 vs Core i5 3470

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E5645
20,172
Core i5 3470
9,436

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon E5645
1,968
Core i5 3470
2,983

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5645
1,340,000 MB/s
Core i5 3470
2,470,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon E5645
11,304
Core i5 3470
9,226

GeekBench (64-bit) Data courtesy Primate Labs

Xeon E5645
11,929
Core i5 3470
10,031

GeekBench

Xeon E5645
11,929
Core i5 3470
12,141

PassMark Data courtesy Passmark

Xeon E5645
6,545
Core i5 3470
6,607

PassMark (Single Core)

Xeon E5645
1,083
Core i5 3470
1,906

Specifications Full list of technical specs

summary

Xeon E5645  vs
Core i5 3470 
Clock speed 2.4 GHz 3.2 GHz
Turbo clock speed 2.67 GHz 3.6 GHz
Cores Hexa core Quad core
Socket type
LGA 1366
LGA 1155

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 80W 77W
Annual home energy cost 19.27 $/year 31.22 $/year
Annual commercial energy cost 70.08 $/year 84.62 $/year
Performance per watt 8.49 pt/W 4.41 pt/W
Typical power consumption 65W 86.05W

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3-1066
DDR3
DDR3-800
Channels Triple Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 31,999.98 MB/s 25,600 MB/s
Maximum memory size 294,912 MB 32,768 MB

details

Xeon E5645  vs
Core i5 3470 
Architecture x86-64 x86-64
Threads 12 4
L2 cache 2 MB 1 MB
L2 cache per core 0.33 MB/core 0.25 MB/core
L3 cache 12 MB 6 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 2 1
Clock multiplier 18 32
Voltage range 0.75 - 1.35V Unknown - 1.13V
Operating temperature Unknown - 76.2°C Unknown - 67.4°C

overclocking

Overclock popularity 3 22
Overclocked clock speed 3.39 GHz 3.67 GHz
Overclocked clock speed (Water) 2.4 GHz 4.09 GHz
Overclocked clock speed (Air) 3.39 GHz 3.67 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics 2500
Latest DirectX N/A 11.0
Number of displays supported N/A 3
GPU clock speed N/A 650 MHz
Turbo clock speed N/A 1,100 MHz

bus

Architecture QPI DMI 2.0
Number of links 2 1
Data rate 46,928 MB/s 2,560 MB/s
Transfer rate 5,860 MT/s 5,000 MT/s
Intel Xeon E5645
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Intel Core i5 3470
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