CPUBoss Review Our evaluation of Q6600 vs 955 among desktop CPUs (over 75W)

Performance

Benchmark performance using all cores
Core2 Quad Q6600
4.8
Phenom II X4 955
5.3
Core i5 3570K
7.3
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance
Core2 Quad Q6600
4.9
Phenom II X4 955
5.3
Core i5 3570K
8.1
PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics
Core2 Quad Q6600
0.0
Phenom II X4 955
0.0
Core i5 3570K
7.2
Fire Strike

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing
Core2 Quad Q6600
0.0
Phenom II X4 955
0.0
Core i5 3570K
6.8
CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?
Core2 Quad Q6600
5.4
Phenom II X4 955
5.3
Core i5 3570K
9.6
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?
Core2 Quad Q6600
n.d.
Phenom II X4 955
6.3
Core i5 3570K
6.9
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more
5.3

CPUBoss Score

Combination of all six facets
Core2 Quad Q6600
4.9
Phenom II X4 955
5.3
Core i5 3570K
8.7

Winner
AMD Phenom II X4 955 

CPUBoss recommends the AMD Phenom II X4 955  based on its performance, single-core performance and value.

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VS

Intel Core2 Quad Q6600

Front view of Intel Core2 Quad Q6600
Front view of AMD Phenom II X4 955

AMD Phenom II X4 955

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Differences What are the advantages of each

Front view of Intel Core2 Quad Q6600

Reasons to consider the
Intel Core2 Quad Q6600

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Much more l2 cache 8 MB vs 2 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Much lower typical power consumption 85.31W vs 101.56W More than 15% lower typical power consumption
Much more l2 cache per core 2 MB/core vs 0.5 MB/core 4x more l2 cache per core
Much lower annual commercial energy cost 91.98 $/year vs 109.5 $/year More than 15% lower annual commercial energy cost
Much lower annual home energy cost 25.29 $/year vs 30.11 $/year More than 15% lower annual home energy cost
Front view of AMD Phenom II X4 955

Reasons to consider the
AMD Phenom II X4 955

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Much higher clock speed 3.2 GHz vs 2.4 GHz Around 35% higher clock speed
Much better cinebench r10 32Bit 1-core score 3,675 vs 2,778 More than 30% better cinebench r10 32Bit 1-core score
Much better PassMark score 4,019 vs 2,993 Around 35% better PassMark score
Much better performance per dollar 1.98 pt/$ vs 0.94 pt/$ More than 2x better performance per dollar
Much better cinebench r10 32Bit score 13,242 vs 9,681 More than 35% better cinebench r10 32Bit score
Newer Nov, 2009 vs Jan, 2007 Release date over 2 years later
Significantly better overclocked clock speed (Air) 3.99 GHz vs 3.52 GHz Around 15% better overclocked clock speed (Air)
Significantly better overclocked clock speed (Water) 4.19 GHz vs 3.74 GHz More than 10% better overclocked clock speed (Water)

Benchmarks Real world tests of Core2 Quad Q6600 vs Phenom II X4 955

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core2 Quad Q6600
4,490
Phenom II X4 955
5,898

GeekBench 3 (Single core) Data courtesy Primate Labs

Core2 Quad Q6600
1,306
Phenom II X4 955
1,679

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core2 Quad Q6600
102,800 MB/s
Phenom II X4 955
129,850 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Core2 Quad Q6600
4,161
Phenom II X4 955
5,649

GeekBench (64-bit) Data courtesy Primate Labs

Core2 Quad Q6600
4,541
Phenom II X4 955
5,696

GeekBench

Core2 Quad Q6600
5,918
Phenom II X4 955
7,600

PassMark Data courtesy Passmark

Core2 Quad Q6600
2,993
Phenom II X4 955
4,019

PassMark (Single Core)

Core2 Quad Q6600
922
Phenom II X4 955
1,123

Reviews Word on the street

Core2 Quad Q6600  vs Phenom II X4 955 
8.0
read review
8.0
read review
But in terms of a re-encode/compress test and Stalker at 800 x 600, and it's quite apparent what two extra cores can do.
Core2 Quad Q6600
9.4
read review
8.7
read review
Unfortunately because it is old and there have been many new releases, 1366 1156, 1155 and now 2011, it is quite hard to recommend it, however if you do own one already I would always say don't get rid of it, keep it as a backup rig, this was truly one of those chips that could take a lot.
Core2 Quad Q6600

Overall
8.9 Out of 10
8.8 Out of 10

Specifications Full list of technical specs

summary

 Core2 Quad Q6600  vs
Phenom II X4 955 
Clock speed 2.4 GHz 3.2 GHz
Cores Quad core Quad core
Socket type
LGA 775
AM3

features
Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
3DNow!
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption
TDP 105W 125W
Annual home energy cost 25.29 $/year 30.11 $/year
Annual commercial energy cost 91.98 $/year 109.5 $/year
Performance per watt 1.39 pt/W 1.5 pt/W
Typical power consumption 85.31W 101.56W

bus
Clock speed 1,066 MHz 2,000 MHz

details

 Core2 Quad Q6600  vs
Phenom II X4 955 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 8 MB 2 MB
L2 cache per core 2 MB/core 0.5 MB/core
Manufacture process 65 nm 45 nm
Max CPUs 1 1
Voltage range 0.85 - 1.5V 0.88 - 1.5V
Operating temperature Unknown - 62.2°C Unknown - 62°C

overclocking
Overclock popularity 278 259
Overclock review score 5 4
Overclocked clock speed 3.52 GHz 3.99 GHz
Overclocked clock speed (Water) 3.74 GHz 4.19 GHz
Overclocked clock speed (Air) 3.52 GHz 3.99 GHz

integrated graphics
GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A
Intel Core2 Quad Q6600
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AMD Phenom II X4 955
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