CPUBoss Review Our evaluation of X6800 vs Q9650 among desktop CPUs

Performance

Benchmark performance using all cores

PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Fire Strike

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

4

CPUBoss Score

Combination of all six facets

Winner
Intel Core2 X6800 

CPUBoss recommends the Intel Core2 X6800  based on its .

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Differences What are the advantages of each

Front view of Intel Core2 X6800

Reasons to consider the
Intel Core2 X6800

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Significantly lower typical power consumption 60.94W vs 77.19W More than 20% lower typical power consumption
Significantly lower annual home energy cost 18.07 $/year vs 22.89 $/year More than 20% lower annual home energy cost
Significantly lower annual commercial energy cost 65.7 $/year vs 83.22 $/year More than 20% lower annual commercial energy cost
Front view of Intel Core2 Quad Q9650

Reasons to consider the
Intel Core2 Quad Q9650

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Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 4 vs 2 Twice as many threads
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Much better overclocked clock speed (Air) 4.15 GHz vs 3.54 GHz More than 15% better overclocked clock speed (Air)
Much higher Maximum operating temperature 71.4 °C vs 60.4 °C Around 20% higher Maximum operating temperature
Newer Aug, 2008 vs Jul, 2006 Release date over 2 years later
Better overclocked clock speed (Water) 4.25 GHz vs 4.07 GHz Around 5% better overclocked clock speed (Water)

Benchmarks Real world tests of Core2 X6800 vs Quad Q9650

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core2 X6800
125,200 MB/s
Core2 Quad Q9650
128,200 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

3D Mark 11 (Physics)

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core2 X6800  vs
Quad Q9650 
Clock speed 2.93 GHz 3 GHz
Cores Dual core Quad core
Socket type
LGA 775
Is unlocked Yes Yes

features

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

power consumption

TDP 75W 95W
Annual home energy cost 18.07 $/year 22.89 $/year
Annual commercial energy cost 65.7 $/year 83.22 $/year
Performance per watt 1.59 pt/W 1.47 pt/W
Typical power consumption 60.94W 77.19W

details

Core2 X6800  vs
Quad Q9650 
Architecture x86-64 x86-64
Threads 2 4
L2 cache 4 MB 12 MB
L2 cache per core 2 MB/core 3 MB/core
Manufacture process 65 nm 45 nm
Transistor count 291,000,000 820,000,000
Max CPUs 1 1
Clock multiplier 11 9
Voltage range 0.85 - 1.5V 0.85 - 1.36V
Operating temperature Unknown - 60.4°C Unknown - 71.4°C

overclocking

Overclocked clock speed 3.54 GHz 4.15 GHz
Overclocked clock speed (Water) 4.07 GHz 4.25 GHz
Overclocked clock speed (Air) 3.54 GHz 4.15 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

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 1,066 MHz 1,333 MHz
Intel Core2 X6800
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Intel Core2 Quad Q9650
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