CPUBoss Review Our evaluation of E5620 vs E5345 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

5.2

CPUBoss Score

Combination of all six facets

Winner
Intel Xeon E5620 

CPUBoss recommends the Intel Xeon E5620  based on its performance, single-core performance and value.

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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

Report a correction
Much better performance per watt 7.59 pt/W vs 1.81 pt/W Around 4.2x better performance per watt
Much better performance per dollar 2.18 pt/$ vs 0.31 pt/$ Around 7x better performance per dollar
Much better overclocked clock speed (Air) 3.75 GHz vs 2.7 GHz Around 40% better overclocked clock speed (Air)
Significantly newer manufacturing process 32 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Higher clock speed 2.4 GHz vs 2.33 GHz Around 5% higher clock speed
More threads 8 vs 4 Twice as many threads
Much better overclocked clock speed (Water) 4.33 GHz vs 2.33 GHz More than 85% better overclocked clock speed (Water)
Newer Mar, 2010 vs Nov, 2006 Release date over 3 years later
Front view of Intel Xeon E5345

Reasons to consider the
Intel Xeon E5345

Report a correction
Much more l2 cache 8 MB vs 1 MB 8x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 2 MB/core vs 0.25 MB/core 8x more l2 cache per core

Benchmarks Real world tests of Xeon E5620 vs E5345

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E5620
14,086
Xeon E5345
8,389

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon E5620
1,898
Xeon E5345
1,242

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5620
1,280,000 MB/s
Xeon E5345
94,300 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon E5620
8,737
Xeon E5345
4,114

GeekBench

Xeon E5620
11,417
Xeon E5345
4,114

PassMark Data courtesy Passmark

Xeon E5620
4,873
Xeon E5345
2,958

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E5620  vs
E5345 
Clock speed 2.4 GHz 2.33 GHz
Cores Quad core Quad core
Socket type
LGA 1366
LGA 771

features

Has a NX bit Yes Yes
Supports trusted computing Yes No
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 80W
Annual home energy cost 19.27 $/year 19.27 $/year
Annual commercial energy cost 70.08 $/year 70.08 $/year
Performance per watt 7.59 pt/W 1.81 pt/W
Typical power consumption 65W 65W

bus

Architecture QPI FSB
Number of links 2 1
Clock speed 2,930 MHz 1,333 MHz

details

Xeon E5620  vs
E5345 
Architecture x86-64 x86-64
Threads 8 4
L2 cache 1 MB 8 MB
L2 cache per core 0.25 MB/core 2 MB/core
Manufacture process 32 nm 65 nm
Max CPUs 2 2
Clock multiplier 18 7
Voltage range 0.75 - 1.35V 1 - 1.5V
Operating temperature Unknown - 77.6°C Unknown - 66°C

overclocking

Overclocked clock speed 3.75 GHz 2.7 GHz
Overclocked clock speed (Water) 4.33 GHz 2.33 GHz
Overclocked clock speed (Air) 3.75 GHz 2.7 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

memory controller

Memory controller Built-in Built-in
Supports ECC Yes No
Intel Xeon E5620
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Intel Xeon E5345
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