CPUBoss Review Our evaluation of W3520 vs 920 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

Intel Xeon W3520

CPUBoss Winner
Front view of Intel Xeon W3520

Differences What are the advantages of each

Front view of Intel Xeon W3520

Reasons to consider the
Intel Xeon W3520

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Lower typical power consumption 105.63W vs 135.63W More than 20% lower typical power consumption
Better performance per dollar 1.31 pt/$ vs 1.09 pt/$ More than 20% better performance per dollar
Significantly lower annual home energy cost 31.32 $/year vs 48.38 $/year More than 35% lower annual home energy cost
Newer Mar, 2009 vs Oct, 2008 Release date 5 months later
Lower annual commercial energy cost 113.88 $/year vs 134.55 $/year More than 15% lower annual commercial energy cost
Front view of Intel Core i7 920

Reasons to consider the
Intel Core i7 920

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Much better geekbench 3 AES single core score 143,700 MB/s vs 117,600 MB/s More than 20% better geekbench 3 AES single core score

Benchmarks Real world tests of Xeon W3520 vs Core i7 920

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon W3520
7,257
Core i7 920
7,014

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon W3520
1,935
Core i7 920
1,959

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon W3520
117,600 MB/s
Core i7 920
143,700 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon W3520
6,599
Core i7 920
7,125

GeekBench (64-bit) Data courtesy Primate Labs

Xeon W3520
7,836
Core i7 920
7,791

GeekBench

Xeon W3520
9,166
Core i7 920
9,242

PassMark Data courtesy Passmark

Xeon W3520
5,061
Core i7 920
4,958

PassMark (Single Core)

Xeon W3520
1,196
Core i7 920
1,164

Specifications Full list of technical specs

summary

Xeon W3520  vs
Core i7 920 
Clock speed 2.66 GHz 2.66 GHz
Turbo clock speed 2.93 GHz 2.93 GHz
Cores Quad core Quad core
Socket type
LGA 1366

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

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 QPI
Number of links 1 1
Data rate 19,200 MB/s 19,200 MB/s
Transfer rate 4,800 MT/s 4,800 MT/s
Clock speed 2,400 MHz 2,400 MHz

details

Xeon W3520  vs
Core i7 920 
Architecture x86-64 x86-64
Threads 8 8
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 8 MB 8 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 45 nm 45 nm
Transistor count 731,000,000 731,000,000
Max CPUs 1 1
Clock multiplier 20 20
Voltage range 0.8 - 1.38V 0.8 - 1.38V
Operating temperature Unknown - 67.9°C Unknown - 67.9°C

overclocking

Overclock popularity 6 491
Overclocked clock speed 4.38 GHz 4.22 GHz
Overclocked clock speed (Water) 4.54 GHz 4.17 GHz
Overclocked clock speed (Air) 4.38 GHz 4.22 GHz

power consumption

TDP 130W 130W
Annual home energy cost 31.32 $/year 48.38 $/year
Annual commercial energy cost 113.88 $/year 134.55 $/year
Performance per watt 1.38 pt/W 1.21 pt/W
Typical power consumption 105.63W 135.63W

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1066
DDR3-800
DDR3
Channels Triple Channel Triple Channel
Supports ECC Yes No
Maximum bandwidth 25,599.99 MB/s 25,599.99 MB/s
Intel Xeon W3520
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Intel Core i7 920
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