CPUBoss Review Our evaluation of X5550 vs W3540 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 X5550

CPUBoss Winner
Front view of Intel Xeon X5550

Differences What are the advantages of each

Front view of Intel Xeon X5550

Reasons to consider the
Intel Xeon X5550

Report a correction
Significantly lower typical power consumption 77.19W vs 105.63W More than 25% lower typical power consumption
Supports more RAM 147,456 MB vs 24,576 MB Supports 6x more RAM
Much better overclocked clock speed (Water) 4.23 GHz vs 2.93 GHz Around 45% better overclocked clock speed (Water)
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Significantly lower annual commercial energy cost 83.22 $/year vs 113.88 $/year More than 25% lower annual commercial energy cost
Significantly lower annual home energy cost 22.89 $/year vs 31.32 $/year More than 25% lower annual home energy cost
Front view of Intel Xeon W3540

Reasons to consider the
Intel Xeon W3540

Report a correction
Significantly higher clock speed 2.93 GHz vs 2.66 GHz More than 10% higher clock speed
Much better overclocked clock speed (Air) 4.51 GHz vs 3.72 GHz More than 20% better overclocked clock speed (Air)
Higher turbo clock speed 3.2 GHz vs 3.06 GHz Around 5% higher turbo clock speed

Benchmarks Real world tests of Xeon X5550 vs W3540

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon X5550
14,788
Xeon W3540
7,923

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon X5550
2,000
Xeon W3540
2,092

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon X5550
123,700 MB/s
Xeon W3540
128,600 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon X5550
9,860
Xeon W3540
8,045

GeekBench (64-bit) Data courtesy Primate Labs

Xeon X5550
9,635
Xeon W3540
8,799

GeekBench

Xeon X5550
10,669
Xeon W3540
9,879

PassMark Data courtesy Passmark

Xeon X5550
5,416
Xeon W3540
5,479

PassMark (Single Core)

Xeon X5550
1,252
Xeon W3540
1,300

Specifications Full list of technical specs

summary

Xeon X5550  vs
W3540 
Clock speed 2.66 GHz 2.93 GHz
Turbo clock speed 3.06 GHz 3.2 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

power consumption

TDP 95W 130W
Annual home energy cost 22.89 $/year 31.32 $/year
Annual commercial energy cost 83.22 $/year 113.88 $/year
Performance per watt 2.43 pt/W 1.5 pt/W
Typical power consumption 77.19W 105.63W

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3-800
DDR3
Channels Triple Channel Triple Channel
Supports ECC Yes Yes
Maximum bandwidth 31,999.98 MB/s 25,599.99 MB/s
Maximum memory size 147,456 MB 24,576 MB

details

Xeon X5550  vs
W3540 
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 2 1
Voltage range 0.75 - 1.35V 0.8 - 1.38V
Operating temperature Unknown - 75°C Unknown - 67.9°C

overclocking

Overclocked clock speed 3.72 GHz 4.51 GHz
Overclocked clock speed (Water) 4.23 GHz 2.93 GHz
Overclocked clock speed (Air) 3.72 GHz 4.51 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 QPI
Number of links 2 1
Data rate 51,200 MB/s 19,200 MB/s
Transfer rate 6,400 MT/s 4,800 MT/s
Clock speed 3,200 MHz 2,400 MHz
Intel Xeon X5550
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Intel Xeon W3540
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