CPUBoss Review Our evaluation of X3320 vs 840 among all 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

Sky Diver and Cloud Gate

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?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

No winner declared

Too close to call

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VS
Front view of AMD Phenom II X4 840

AMD Phenom II X4 840

CPUBoss Winner

Differences What are the advantages of each

Front view of Intel Xeon X3320

Reasons to consider the
Intel Xeon X3320

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Much more l2 cache 6 MB vs 2 MB 3x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 1.5 MB/core vs 0.5 MB/core 3x more l2 cache per core
Front view of AMD Phenom II X4 840

Reasons to consider the
AMD Phenom II X4 840

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Higher clock speed 3.2 GHz vs 2.5 GHz Around 30% higher clock speed
Better PassMark (Single core) score 1,537 vs 1,075 Around 45% better PassMark (Single core) score
Newer Jan, 2011 vs Jan, 2008 Release date over 3 years later
Better overclocked clock speed (Air) 3.94 GHz vs 3.38 GHz More than 15% better overclocked clock speed (Air)
Better PassMark score 5,029 vs 3,335 More than 50% better PassMark score
Better overclocked clock speed (Water) 3.2 GHz vs 2.5 GHz Around 30% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon X3320 vs Phenom II X4 840

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

Xeon X3320
134,000 MB/s
Phenom II X4 840
129,500 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon X3320  vs
Phenom II X4 840 
Clock speed 2.5 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
SSE4.1
3DNow!
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 95W 95W
Annual home energy cost 22.89 $/year 22.89 $/year
Annual commercial energy cost 83.22 $/year 83.22 $/year
Performance per watt 1.64 pt/W 1.87 pt/W
Typical power consumption 77.19W 77.19W

bus

Clock speed 1,333 MHz 2,000 MHz

details

Xeon X3320  vs
Phenom II X4 840 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 6 MB 2 MB
L2 cache per core 1.5 MB/core 0.5 MB/core
Manufacture process 45 nm 45 nm
Max CPUs 1 1
Voltage range 0.85 - 1.36V 0.85 - 1.4V
Operating temperature Unknown - 71.4°C Unknown - 71°C

overclocking

Overclocked clock speed 3.38 GHz 3.94 GHz
Overclocked clock speed (Water) 2.5 GHz 3.2 GHz
PassMark (Overclocked) 1,364.9 1,971.6
Overclocked clock speed (Air) 3.38 GHz 3.94 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 X3320
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AMD Phenom II X4 840
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