CPUBoss Review Our evaluation of E5540 vs E5-2670 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

5.4

CPUBoss Score

Combination of all six facets

Winner
Intel Xeon E5-2670 

CPUBoss recommends the Intel Xeon E5-2670  based on its performance, single-core performance and value.

See full details

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VS

Differences What are the advantages of each

Front view of Intel Xeon E5540

Reasons to consider the
Intel Xeon E5540

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Significantly lower typical power consumption 65W vs 93.44W More than 30% lower typical power consumption
Much better overclocked clock speed (Air) 3.57 GHz vs 3.13 GHz Around 15% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.45 GHz vs 3.08 GHz Around 45% better overclocked clock speed (Water)
Significantly lower annual commercial energy cost 70.08 $/year vs 100.74 $/year More than 30% lower annual commercial energy cost
Significantly lower annual home energy cost 19.27 $/year vs 27.7 $/year More than 30% lower annual home energy cost
Front view of Intel Xeon E5-2670

Reasons to consider the
Intel Xeon E5-2670

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Much more l3 cache 20 MB vs 8 MB 2.5x more l3 cache; more data can be stored in the l3 cache for quick access later
Significantly higher turbo clock speed 3.3 GHz vs 2.8 GHz Around 20% higher turbo clock speed
Much more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much better PassMark score 12,270 vs 4,857 More than 2.5x better PassMark score
Much better PassMark (Single core) score 1,590 vs 1,141 Around 40% better PassMark (Single core) score
More cores 8 vs 4 Twice as many cores; run more applications at once
Much better performance per watt 7.31 pt/W vs 2.24 pt/W More than 3.2x better performance per watt
More threads 16 vs 8 Twice as many threads
Supports more RAM 393,216 MB vs 147,456 MB Supports around 2.8x more RAM
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Much higher Maximum operating temperature 80 °C vs 76 °C More than 5% higher Maximum operating temperature
Higher clock speed 2.6 GHz vs 2.53 GHz Around 5% higher clock speed
Newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Newer Mar, 2012 vs Mar, 2009 Release date over 2 years later

Benchmarks Real world tests of Xeon E5540 vs E5-2670

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E5540
8,617
Xeon E5-2670
14,255

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon E5540
1,679
Xeon E5-2670
2,209

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5540
112,700 MB/s
Xeon E5-2670
1,740,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon E5540
7,362
Xeon E5-2670
22,189

GeekBench

Xeon E5540
8,085
Xeon E5-2670
22,189

PassMark Data courtesy Passmark

Xeon E5540
4,857
Xeon E5-2670
12,270

PassMark (Single Core)

Xeon E5540
1,141
Xeon E5-2670
1,590

Specifications Full list of technical specs

summary

Xeon E5540  vs
E5-2670 
Clock speed 2.53 GHz 2.6 GHz
Turbo clock speed 2.8 GHz 3.3 GHz
Cores Quad core Octa core
Socket type
LGA 1366
LGA 2011

features

Has a NX bit Yes Yes
Supports trusted computing No Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 80W 115W
Annual home energy cost 19.27 $/year 27.7 $/year
Annual commercial energy cost 70.08 $/year 100.74 $/year
Performance per watt 2.24 pt/W 7.31 pt/W
Typical power consumption 65W 93.44W

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3-1066
DDR3
DDR3-800
Channels Triple Channel Quad Channel
Supports ECC Yes Yes
Maximum bandwidth 25,599.99 MB/s 51,200 MB/s
Maximum memory size 147,456 MB 393,216 MB

details

Xeon E5540  vs
E5-2670 
Architecture x86-64 x86-64
Threads 8 16
L2 cache 1 MB 2 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 8 MB 20 MB
L3 cache per core 2 MB/core 2.5 MB/core
Manufacture process 45 nm 32 nm
Max CPUs 2 2
Clock multiplier 19 33
Voltage range 0.75 - 1.35V 0.6 - 1.35V
Operating temperature Unknown - 76°C Unknown - 80°C

overclocking

Overclock popularity 0 3
Overclocked clock speed 3.57 GHz 3.13 GHz
Overclocked clock speed (Water) 4.45 GHz 3.08 GHz
Overclocked clock speed (Air) 3.57 GHz 3.13 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 2
Data rate 46,928 MB/s 64,000 MB/s
Transfer rate 5,860 MT/s 8,000 MT/s
Clock speed 2,930 MHz 4,000 MHz
Intel Xeon E5540
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Intel Xeon E5-2670
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