Intel Xeon E5450 vs E5420

	Performance
	Benchmark performance using all cores
Xeon E5450 5.5 Xeon E5420 5.4 Core2 Quad Q9650 5.5
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

	Single-core Performance
	Individual core benchmark performance
Xeon E5450 7.9 Xeon E5420 7.6 Core2 Quad Q9650 7.9
PassMark (Single Core), Geekbench 3 Single Core and 1 more

	Integrated Graphics
	Integrated GPU performance for graphics
Xeon E5450 n.d. Xeon E5420 n.d. Core2 Quad Q9650 n.d.
Sky Diver and Cloud Gate

	Integrated Graphics (OpenCL)
	Integrated GPU performance for parallel computing
Xeon E5450 0.0 Xeon E5420 0.0 Core2 Quad Q9650 0.0
CompuBench 1.5 Bitcoin mining and 4 more

	Performance per Watt
	How efficiently does the processor use electricity?
Xeon E5450 5.1 Xeon E5420 5.0 Core2 Quad Q9650 5.0
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

	Value
	Are you paying a premium for performance?
Xeon E5450 n.d. Xeon E5420 n.d. Core2 Quad Q9650 n.d.
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 E5450

Front view of Intel Xeon E5450

Front view of Intel Xeon E5420

Intel Xeon E5420

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Front view of Intel Xeon E5450

Reasons to consider the
Intel Xeon E5450

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Much higher clock speed

3 GHz

vs

2.5 GHz

20% higher clock speed

Much better overclocked clock speed (Air)

3.83 GHz

vs

3.19 GHz

Around 20% better overclocked clock speed (Air)

Better overclocked clock speed (Water)

4.1 GHz

vs

3.94 GHz

Around 5% better overclocked clock speed (Water)

Front view of Intel Xeon E5420

Reasons to consider the
Intel Xeon E5420

Report a correction

CPUBoss is not aware of any important advantages of the E5420 vs the E5450.

GeekBench 3 (Multi-core) Data courtesy Primate Labs

6,390

5,821

GeekBench 3 (Single core) Data courtesy Primate Labs

1,619

1,317

GeekBench 3 (AES single core) Data courtesy Primate Labs

128,600 MB/s

106,200 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

5,457

4,529

GeekBench (64-bit) Data courtesy Primate Labs

6,298

6,104

GeekBench

6,298

6,104

PassMark Data courtesy Passmark

4,244

3,534

PassMark (Single Core)

1,270

1,073

summary	Xeon E5450	vs	E5420
Clock speed	3 GHz		2.5 GHz
Cores	Quad core		Quad core
Socket type
LGA 771
features
Has a NX bit	Yes		Yes
Supports trusted computing	No		No
Has virtualization support	Yes		Yes
Instruction set extensions
SSE2
MMX
SSE3
SSE
SSE4.1
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	2.1 pt/W		1.78 pt/W
Typical power consumption	65W		65W
bus
Architecture	FSB		FSB
Number of links	1		1
Clock speed	1,333 MHz		1,333 MHz

details	Xeon E5450	vs	E5420
Architecture	x86-64		x86-64
Threads	4		4
L2 cache	12 MB		12 MB
L2 cache per core	3 MB/core		3 MB/core
Manufacture process	45 nm		45 nm
Transistor count	820,000,000		820,000,000
Max CPUs	2		2
Clock multiplier	9		7
Voltage range	0.85 - 1.35V		0.85 - 1.35V
Operating temperature	Unknown - 67°C		Unknown - 67°C
overclocking
Overclocked clock speed	3.83 GHz		3.19 GHz
Overclocked clock speed (Water)	4.1 GHz		3.94 GHz
Overclocked clock speed (Air)	3.83 GHz		3.19 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

Intel Xeon E5450

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Intel Xeon E5420

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