CPUBoss Review Our evaluation of E5620 vs P9500 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

Differences What are the advantages of each

Front view of Intel Xeon E5620

Reasons to consider the
Intel Xeon E5620

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Much better geekbench 3 Multi-Core score 14,086 vs 2,481 Around 5.8x better geekbench 3 Multi-Core score
Much better performance per dollar 2.18 pt/$ vs 0.3 pt/$ Around 7.2x better performance per dollar
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
More threads 8 vs 2 6 more threads
Significantly better performance per watt 7.59 pt/W vs 4.38 pt/W Around 75% better performance per watt
More cores 4 vs 2 Twice as many cores; run more applications at once
Significantly better overclocked clock speed (Air) 3.75 GHz vs 2.9 GHz Around 30% better overclocked clock speed (Air)
Better geekbench 3 single core score 1,898 vs 1,388 More than 35% better geekbench 3 single core score
Much better overclocked clock speed (Water) 4.33 GHz vs 2.53 GHz More than 70% better overclocked clock speed (Water)
Newer Mar, 2010 vs Jul, 2008 Release date over 1 years later
Front view of Intel Core2 Duo P9500

Reasons to consider the
Intel Core2 Duo P9500

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Much more l2 cache 6 MB vs 1 MB 6x 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 0.25 MB/core 12x more l2 cache per core
Much lower typical power consumption 20.31W vs 65W 3.2x lower typical power consumption
Much lower annual home energy cost 6.02 $/year vs 19.27 $/year 3.2x lower annual home energy cost
Much lower annual commercial energy cost 21.9 $/year vs 70.08 $/year 3.2x lower annual commercial energy cost

Benchmarks Real world tests of Xeon E5620 vs Core2 Duo P9500

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 E5620
1,280,000 MB/s
Core2 Duo P9500
109,300 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench (64-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E5620  vs
Core2 Duo P9500 
Clock speed 2.4 GHz 2.53 GHz
Cores Quad core Dual core
Socket type
LGA 1366
479
P

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 80W 25W
Annual home energy cost 19.27 $/year 6.02 $/year
Annual commercial energy cost 70.08 $/year 21.9 $/year
Performance per watt 7.59 pt/W 4.38 pt/W
Typical power consumption 65W 20.31W

details

Xeon E5620  vs
Core2 Duo P9500 
Architecture x86-64 x86-64
Threads 8 2
L2 cache 1 MB 6 MB
L2 cache per core 0.25 MB/core 3 MB/core
Manufacture process 32 nm 45 nm
Max CPUs 2 1
Clock multiplier 18 9

overclocking

Overclocked clock speed 3.75 GHz 2.9 GHz
Overclocked clock speed (Water) 4.33 GHz 2.53 GHz
Overclocked clock speed (Air) 3.75 GHz 2.9 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 QPI FSB
Number of links 2 1
Clock speed 2,930 MHz 1,066 MHz
Intel Xeon E5620
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Intel Core2 Duo P9500
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