Intel Xeon X3440 vs Core i7 920

older Released September, 2009

Intel Xeon X3440

2.53 GHz
Quad core

Front view of Intel Xeon X3440

4.6 Out of 10

Reasons to buy the Intel Xeon X3440

	Much lower typical power consumption 77.19W		Supports trusted computing Yes
	Much lower annual home energy cost 22.89 $/year		Much lower annual commercial energy cost 83.22 $/year

VS

older Released October, 2008

Intel Core i7 920

2.66 GHz
Quad core

Front view of Intel Core i7 920

4.7 Out of 10

Reasons to buy the Core i7 920

Better geekbench 3 single core score

1,959

Better overclocked clock speed (Air)

4.22 GHz

	Performance
	Benchmark performance using all cores
Xeon X3440 5.8 Core i7 920 5.9 Core i7 6700K 7.4
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

	Single-core Performance
	Individual core benchmark performance
Xeon X3440 7.5 Core i7 920 7.8 Core i7 6700K 10.0
PassMark (Single Core), Geekbench 3 Single Core and 1 more

	Integrated Graphics
	Integrated GPU performance for graphics
Xeon X3440 n.d. Core i7 920 n.d. Core i7 6700K n.d.
Sky Diver and Cloud Gate

	Integrated Graphics (OpenCL)
	Integrated GPU performance for parallel computing
Xeon X3440 0.0 Core i7 920 0.0 Core i7 6700K 10.0
CompuBench 1.5 Bitcoin mining and 4 more

	Performance per Watt
	How efficiently does the processor use electricity?
Xeon X3440 5.0 Core i7 920 5.0 Core i7 6700K 5.4
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

	Value
	Are you paying a premium for performance?
Xeon X3440 n.d. Core i7 920 n.d. Core i7 6700K 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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VS

Intel Xeon X3440

Front view of Intel Xeon X3440

Front view of Intel Core i7 920

Intel Core i7 920

CPUBoss Winner

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Front view of Intel Xeon X3440

Reasons to consider the
Intel Xeon X3440

Report a correction

Much lower typical power consumption

77.19W

vs

135.63W

Around 45% lower typical power consumption

Supports trusted computing

Yes

vs

No

Somewhat common; Allows for safer, more reliable computing

Much lower annual home energy cost

22.89 $/year

vs

48.38 $/year

2.1x lower annual home energy cost

Much lower annual commercial energy cost

83.22 $/year

vs

134.55 $/year

Around 40% lower annual commercial energy cost

Better performance per dollar

0.71 pt/$

vs

0.61 pt/$

More than 15% better performance per dollar

Higher Maximum operating temperature

72.7 °C

vs

67.9 °C

More than 5% higher Maximum operating temperature

Newer

Sep, 2009

vs

Oct, 2008

Release date 11 months later

Front view of Intel Core i7 920

Reasons to consider the
Intel Core i7 920

Report a correction

Better geekbench 3 single core score

1,959

vs

1,726

Around 15% better geekbench 3 single core score

Better overclocked clock speed (Air)

4.22 GHz

vs

3.84 GHz

Around 10% better overclocked clock speed (Air)

GeekBench 3 (Multi-core) Data courtesy Primate Labs

6,898

7,014

GeekBench 3 (Single core) Data courtesy Primate Labs

1,726

1,959

GeekBench 3 (AES single core) Data courtesy Primate Labs

108,800 MB/s

143,700 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

6,463

7,125

GeekBench (64-bit) Data courtesy Primate Labs

9,536

7,791

GeekBench

9,536

9,242

PassMark Data courtesy Passmark

4,559

4,958

PassMark (Single Core)

1,036

1,164

Xeon X3440		vs	Core i7 920

	9.6 read review		8.8 read review

summary	Xeon X3440	vs	Core i7 920
Clock speed	2.53 GHz		2.66 GHz
Turbo clock speed	2.93 GHz		2.93 GHz
Cores	Quad core		Quad core
Socket type
LGA 1156
LGA 1366
features
Has a NX bit	Yes		Yes
Supports trusted computing	Yes		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	DMI		QPI
Number of links	1		1
Transfer rate	2,500 MT/s		4,800 MT/s

details	Xeon X3440	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	774,000,000		731,000,000
Max CPUs	1		1
Clock multiplier	19		20
Voltage range	0.65 - 1.4V		0.8 - 1.38V
Operating temperature	Unknown - 72.7°C		Unknown - 67.9°C
overclocking
Overclock popularity	5		491
Overclock review score	5		4.5
Overclocked clock speed	3.84 GHz		4.22 GHz
Overclocked clock speed (Water)	4.2 GHz		4.24 GHz
Overclocked clock speed (Air)	3.84 GHz		4.22 GHz
power consumption
TDP	95W		130W
Annual home energy cost	22.89 $/year		48.38 $/year
Annual commercial energy cost	83.22 $/year		134.55 $/year
Performance per watt	1.72 pt/W		1.21 pt/W
Typical power consumption	77.19W		135.63W
memory controller
Memory controller	Built-in		Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3-800
DDR3
Channels	Dual Channel		Triple Channel
Supports ECC	Yes		No
Maximum bandwidth	21,333.32 MB/s		25,599.99 MB/s

Intel Xeon X3440

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Intel Core i7 920

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