CPUBoss Review Our evaluation of W3540 vs W3520 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 W3540

Reasons to consider the
Intel Xeon W3540

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Significantly higher clock speed 2.93 GHz vs 2.66 GHz More than 10% higher clock speed
Higher turbo clock speed 3.2 GHz vs 2.93 GHz Around 10% higher turbo clock speed
Better overclocked clock speed (Air) 4.51 GHz vs 4.38 GHz Around 5% better overclocked clock speed (Air)
Front view of Intel Xeon W3520

Reasons to consider the
Intel Xeon W3520

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Much better overclocked clock speed (Water) 4.46 GHz vs 2.93 GHz More than 50% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon W3540 vs W3520

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon W3540
7,923
Xeon W3520
7,257

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon W3540
2,092
Xeon W3520
1,935

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon W3540
128,600 MB/s
Xeon W3520
117,600 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon W3540
8,045
Xeon W3520
6,599

GeekBench (64-bit) Data courtesy Primate Labs

Xeon W3540
8,799
Xeon W3520
7,836

GeekBench

Xeon W3540
9,879
Xeon W3520
9,166

PassMark Data courtesy Passmark

Xeon W3540
5,479
Xeon W3520
5,061

PassMark (Single Core)

Xeon W3540
1,300
Xeon W3520
1,196

Specifications Full list of technical specs

summary

Xeon W3540  vs
W3520 
Clock speed 2.93 GHz 2.66 GHz
Turbo clock speed 3.2 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 W3540  vs
W3520 
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 22 20
Voltage range 0.8 - 1.38V 0.8 - 1.38V
Operating temperature Unknown - 67.9°C Unknown - 67.9°C

overclocking

Overclock popularity 0 6
Overclocked clock speed 4.51 GHz 4.38 GHz
Overclocked clock speed (Water) 2.93 GHz 4.46 GHz
Overclocked clock speed (Air) 4.51 GHz 4.38 GHz

power consumption

TDP 130W 130W
Annual home energy cost 31.32 $/year 31.32 $/year
Annual commercial energy cost 113.88 $/year 113.88 $/year
Performance per watt 1.5 pt/W 1.38 pt/W
Typical power consumption 105.63W 105.63W

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1066
DDR3-800
DDR3
Channels Triple Channel Triple Channel
Supports ECC Yes Yes
Maximum bandwidth 25,599.99 MB/s 25,599.99 MB/s
Maximum memory size 24,576 MB 24,576 MB
Intel Xeon W3540
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Intel Xeon W3520
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