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Front view of AMD FX 8300

AMD FX 8300

CPUBoss Winner

Differences What are the advantages of each

Front view of Intel Xeon E5440

Reasons to consider the
Intel Xeon E5440

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Much more l2 cache 12 MB vs 8 MB 50% more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 3 MB/core vs 1 MB/core 3x more l2 cache per core
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Lower typical power consumption 65W vs 77.19W More than 15% lower typical power consumption
Lower annual home energy cost 19.27 $/year vs 22.89 $/year More than 15% lower annual home energy cost
Lower annual commercial energy cost 70.08 $/year vs 83.22 $/year More than 15% lower annual commercial energy cost
Front view of AMD FX 8300

Reasons to consider the
AMD FX 8300

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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 3.3 GHz vs 2.83 GHz More than 15% higher clock speed
Much better performance per watt 10.58 pt/W vs 2 pt/W More than 5.2x better performance per watt
More cores 8 vs 4 Twice as many cores; run more applications at once
Better PassMark score 7,682 vs 4,000 More than 90% better PassMark score
Newer Dec, 2012 vs Nov, 2007 Release date over 5 years later
Significantly better overclocked clock speed (Air) 4.61 GHz vs 3.61 GHz Around 30% better overclocked clock speed (Air)
More threads 8 vs 4 Twice as many threads
Better PassMark (Single core) score 1,396 vs 1,208 More than 15% better PassMark (Single core) score
Slightly higher Maximum operating temperature 70.5 °C vs 67 °C More than 5% higher Maximum operating temperature
Better overclocked clock speed (Water) 4.51 GHz vs 3.96 GHz Around 15% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon E5440 vs FX 8300

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E5440
6,294
FX 8300
10,502

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon E5440
1,532
FX 8300
2,159

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5440
120,650 MB/s
FX 8300
2,420,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon E5440
5,178
FX 8300
9,123

GeekBench

Xeon E5440
5,178
FX 8300
10,686

PassMark Data courtesy Passmark

Xeon E5440
4,000
FX 8300
7,682

PassMark (Single Core)

Xeon E5440
1,208
FX 8300
1,396

Specifications Full list of technical specs

summary

Xeon E5440  vs
FX 8300 
Clock speed 2.83 GHz 3.3 GHz
Cores Quad core Octa core
Socket type
LGA 771
AM3+

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
AVX 1.1
SSE2
F16C
MMX
XOP
AVX
SSE3
SSE
ABM
BMI1
CLMUL
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
CVT16
AMD-V
Supplemental SSE3
AES
TBM
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 80W 95W
Annual home energy cost 19.27 $/year 22.89 $/year
Annual commercial energy cost 70.08 $/year 83.22 $/year
Performance per watt 2 pt/W 10.58 pt/W
Typical power consumption 65W 77.19W

details

Xeon E5440  vs
FX 8300 
Architecture x86-64 x86-64
Threads 4 8
L2 cache 12 MB 8 MB
L2 cache per core 3 MB/core 1 MB/core
Manufacture process 45 nm 32 nm
Transistor count 820,000,000 1,200,000,000
Max CPUs 2 1
Clock multiplier 8 21
Voltage range 0.85 - 1.35V 0.82 - 1.43V
Operating temperature Unknown - 67°C Unknown - 70.5°C

overclocking

Overclocked clock speed 3.61 GHz 4.61 GHz
Overclocked clock speed (Water) 3.96 GHz 4.51 GHz
Overclocked clock speed (Air) 3.61 GHz 4.61 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 Xeon E5440
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AMD FX 8300
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