CPUBoss Review Our evaluation of 5140 vs 920 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
Front view of Intel Core i7 920

Intel Core i7 920

CPUBoss Winner

Differences What are the advantages of each

Front view of Intel Xeon 5140

Reasons to consider the
Intel Xeon 5140

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Much more l2 cache 4 MB vs 1 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Much lower typical power consumption 52.81W vs 135.63W 2.6x lower typical power consumption
Much more l2 cache per core 2 MB/core vs 0.25 MB/core 8x more l2 cache per core
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Much lower annual home energy cost 15.66 $/year vs 48.38 $/year 3.1x lower annual home energy cost
Much lower annual commercial energy cost 56.94 $/year vs 134.55 $/year 2.4x lower annual commercial energy cost
Front view of Intel Core i7 920

Reasons to consider the
Intel Core i7 920

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Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 2.66 GHz vs 2.33 GHz Around 15% higher clock speed
Significantly better geekbench 3 Multi-Core score 7,014 vs 3,990 More than 75% better geekbench 3 Multi-Core score
Much better overclocked clock speed (Air) 4.22 GHz vs 2.85 GHz Around 50% better overclocked clock speed (Air)
Significantly better performance per dollar 0.61 pt/$ vs 0.22 pt/$ Around 2.8x better performance per dollar
More threads 8 vs 2 6 more threads
Better geekbench 3 single core score 1,959 vs 1,256 More than 55% better geekbench 3 single core score
More cores 4 vs 2 Twice as many cores; run more applications at once
Newer Oct, 2008 vs Jun, 2006 Release date over 2 years later
Better overclocked clock speed (Water) 4.24 GHz vs 3.89 GHz Around 10% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon 5140 vs Core i7 920

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon 5140
3,990
Core i7 920
7,014

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon 5140
1,256
Core i7 920
1,959

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon 5140
99,100 MB/s
Core i7 920
143,700 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon 5140
2,326
Core i7 920
7,125

GeekBench

Xeon 5140
2,590
Core i7 920
9,242

PassMark Data courtesy Passmark

Xeon 5140
1,639
Core i7 920
4,958

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon 5140  vs
Core i7 920 
Clock speed 2.33 GHz 2.66 GHz
Cores Dual core Quad core
Socket type
LGA 771
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 65W 130W
Annual home energy cost 15.66 $/year 48.38 $/year
Annual commercial energy cost 56.94 $/year 134.55 $/year
Performance per watt 1.67 pt/W 1.21 pt/W
Typical power consumption 52.81W 135.63W

bus

Architecture FSB QPI
Number of links 1 1
Clock speed 1,333 MHz 2,400 MHz

details

Xeon 5140  vs
Core i7 920 
Architecture x86-64 x86-64
Threads 2 8
L2 cache 4 MB 1 MB
L2 cache per core 2 MB/core 0.25 MB/core
Manufacture process 65 nm 45 nm
Transistor count 291,000,000 731,000,000
Max CPUs 2 1
Clock multiplier 7 20
Voltage range 1 - 1.5V 0.8 - 1.38V
Operating temperature Unknown - 65°C Unknown - 67.9°C

overclocking

Overclocked clock speed 2.85 GHz 4.22 GHz
Overclocked clock speed (Water) 3.89 GHz 4.24 GHz
Overclocked clock speed (Air) 2.85 GHz 4.22 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 5140
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Intel Core i7 920
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