Intel Xeon X5550 vs W3540

older Released March, 2009

Intel Xeon X5550

2.66 GHz
Quad core

Front view of Intel Xeon X5550

5.3 Out of 10

Reasons to buy the Intel Xeon X5550

	Significantly lower typical power consumption 77.19W		Supports more RAM 147,456 MB
	Much better overclocked clock speed (Water) 4.23 GHz		Supports more CPUs in SMP configuration 2

VS

older Released March, 2009

Intel Xeon W3540

2.93 GHz
Quad core

Front view of Intel Xeon W3540

5.2 Out of 10

Reasons to buy the W3540

	Significantly higher clock speed 2.93 GHz		Much better overclocked clock speed (Air) 4.51 GHz
	Higher turbo clock speed 3.2 GHz

	Performance
	Benchmark performance using all cores
Xeon X5550 5.8 Xeon W3540 5.7 Core i7 3770K 6.2
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

	Single-core Performance
	Individual core benchmark performance
Xeon X5550 8.1 Xeon W3540 8.1 Core i7 3770K 9.4
PassMark (Single Core), Geekbench 3 Single Core and 1 more

	Integrated Graphics
	Integrated GPU performance for graphics
Xeon X5550 n.d. Xeon W3540 n.d. Core i7 3770K n.d.
Sky Diver and Cloud Gate

	Integrated Graphics (OpenCL)
	Integrated GPU performance for parallel computing
Xeon X5550 0.0 Xeon W3540 0.0 Core i7 3770K 6.1
CompuBench 1.5 Bitcoin mining and 4 more

	Performance per Watt
	How efficiently does the processor use electricity?
Xeon X5550 5.0 Xeon W3540 5.0 Core i7 3770K 5.2
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

	Value
	Are you paying a premium for performance?
Xeon X5550 n.d. Xeon W3540 n.d. Core i7 3770K 8.1
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

No winner declared

Too close to call

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Intel Xeon X5550

CPUBoss Winner

Front view of Intel Xeon X5550

Front view of Intel Xeon W3540

Intel Xeon W3540

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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

GeekBench 3 (Multi-core) Data courtesy Primate Labs

14,788

7,923

GeekBench 3 (Single core) Data courtesy Primate Labs

2,000

2,092

GeekBench 3 (AES single core) Data courtesy Primate Labs

123,700 MB/s

128,600 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

9,860

8,045

GeekBench (64-bit) Data courtesy Primate Labs

9,635

8,799

GeekBench

10,669

9,879

PassMark Data courtesy Passmark

5,416

5,479

PassMark (Single Core)

1,252

1,300

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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