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Differences What are the advantages of each

Front view of Intel Core2 QX9775

Reasons to consider the
Intel Core2 QX9775

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Much more l2 cache 12 MB vs 0.5 MB 24x more l2 cache; more data can be stored in the l2 cache for quick access later
Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
More cores 4 vs 2 Twice as many cores; run more applications at once
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Much more l2 cache per core 3 MB/core vs 0.25 MB/core 12x more l2 cache per core
Much better overclocked clock speed (Air) 4.04 GHz vs 3.43 GHz Around 20% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.45 GHz vs 3.46 GHz Around 30% better overclocked clock speed (Water)
Front view of Intel Core i3 3220

Reasons to consider the
Intel Core i3 3220

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much newer manufacturing process 22 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower typical power consumption 44.69W vs 121.88W 2.7x lower typical power consumption
Higher clock speed 3.3 GHz vs 3.2 GHz Around 5% higher clock speed
Much lower annual commercial energy cost 48.18 $/year vs 131.4 $/year 2.7x lower annual commercial energy cost
Much lower annual home energy cost 13.25 $/year vs 36.13 $/year 2.7x lower annual home energy cost
Higher Maximum operating temperature 65.3 °C vs 63 °C Around 5% higher Maximum operating temperature
Newer Sep, 2012 vs Feb, 2008 Release date over 4 years later

Benchmarks Real world tests of Core2 QX9775 vs Core i3 3220

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core2 QX9775
11,259
Core i3 3220
5,399

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core2 QX9775
134,400 MB/s
Core i3 3220
173,000 MB/s

Specifications Full list of technical specs

summary

Core2 QX9775  vs
Core i3 3220 
Clock speed 3.2 GHz 3.3 GHz
Cores Quad core Dual core
Socket type
LGA 771
LGA 1155
Is unlocked Yes No

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
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 150W 55W
Annual home energy cost 36.13 $/year 13.25 $/year
Annual commercial energy cost 131.4 $/year 48.18 $/year
Performance per watt 1.53 pt/W 2.69 pt/W
Typical power consumption 121.88W 44.69W

details

Core2 QX9775  vs
Core i3 3220 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 12 MB 0.5 MB
L2 cache per core 3 MB/core 0.25 MB/core
Manufacture process 45 nm 22 nm
Max CPUs 2 1
Clock multiplier 8 33
Operating temperature Unknown - 63°C Unknown - 65.3°C

overclocking

Overclocked clock speed 4.04 GHz 3.43 GHz
Overclocked clock speed (Water) 4.45 GHz 3.46 GHz
PassMark (Overclocked) 1,791.4 3,775.1
Overclocked clock speed (Air) 4.04 GHz 3.43 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics 2500
Number of displays supported N/A 3
GPU clock speed N/A 650 MHz
Turbo clock speed N/A 1,050 MHz

bus

Architecture FSB DMI
Number of links 1 1
Intel Core2 QX9775
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Intel Core i3 3220
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