CPUBoss Review Our evaluation of E5-2420 vs E3-1270 v5 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 E3-1270 v5 

CPUBoss recommends the Intel Xeon E3-1270 v5  based on its performance, single-core performance and power consumption.

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VS

Differences What are the advantages of each

Front view of Intel Xeon E5-2420

Reasons to consider the
Intel Xeon E5-2420

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Much better performance per dollar 2.6 pt/$ vs 0.87 pt/$ Around 3x better performance per dollar
More l3 cache 15 MB vs 8 MB Around 90% more l3 cache; more data can be stored in the l3 cache for quick access later
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
More cores 6 vs 4 2 more cores; run more applications at once
More threads 12 vs 8 4 more threads
Better performance per watt 5.48 pt/W vs 3.49 pt/W More than 55% better performance per watt
Supports more RAM 393,216 MB vs 65,536 MB Supports 6x more RAM
Front view of Intel Xeon E3-1270 v5

Reasons to consider the
Intel Xeon E3-1270 v5

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Much newer manufacturing process 14 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much higher turbo clock speed 4 GHz vs 2.4 GHz More than 65% higher turbo clock speed
Much higher clock speed 3.6 GHz vs 1.9 GHz Around 90% higher clock speed
Significantly better PassMark (Single core) score 2,144 vs 1,355 Around 60% better PassMark (Single core) score
Newer Oct, 2015 vs May, 2012 Release date over 3 years later
Better overclocked clock speed (Air) 4 GHz vs 2.36 GHz Around 70% better overclocked clock speed (Air)
Lower typical power consumption 65W vs 77.19W More than 15% lower typical power consumption
Slightly better geekbench 3 Multi-Core score 15,232 vs 10,344 More than 45% better geekbench 3 Multi-Core score
Better overclocked clock speed (Water) 4 GHz vs 1.9 GHz More than 2x better overclocked clock speed (Water)
Lower annual commercial energy cost 70.08 $/year vs 83.22 $/year More than 15% lower annual commercial energy cost
Lower annual home energy cost 19.27 $/year vs 22.89 $/year More than 15% lower annual home energy cost

Benchmarks Real world tests of Xeon E5-2420 vs E3-1270 v5

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5-2420
985,150 MB/s
Xeon E3-1270 v5
5,260 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E5-2420  vs
E3-1270 v5 
Clock speed 1.9 GHz 3.6 GHz
Turbo clock speed 2.4 GHz 4 GHz
Cores Hexa core Quad core

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 95W 80W
Annual home energy cost 22.89 $/year 19.27 $/year
Annual commercial energy cost 83.22 $/year 70.08 $/year
Performance per watt 5.48 pt/W 3.49 pt/W
Typical power consumption 77.19W 65W

bus

Architecture QPI FSB
Number of links 1 1
Transfer rate 7,200 MT/s 8,000 MT/s

details

Xeon E5-2420  vs
E3-1270 v5 
Architecture x86-64 x86-64
Threads 12 8
L3 cache 15 MB 8 MB
L3 cache per core 2.5 MB/core 2 MB/core
Manufacture process 32 nm 14 nm
Max CPUs 2 1
Voltage range 0.6 - 1.35V 0.55 - 1.52V

overclocking

Overclocked clock speed 2.36 GHz 4 GHz
Overclocked clock speed (Water) 1.9 GHz 4 GHz
Overclocked clock speed (Air) 2.36 GHz 4 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

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3L-1333
DDR3
DDR3-800
Channels Triple Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 31,999.98 MB/s 12,800 MB/s
Maximum memory size 393,216 MB 65,536 MB
Intel Xeon E5-2420
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Intel Xeon E3-1270 v5
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