CPUBoss Review Our evaluation of E3-1270 v2 vs 2500K 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

7.9

CPUBoss Score

Combination of all six facets

Winner
Intel Xeon E3-1270 v2 

CPUBoss recommends the Intel Xeon E3-1270 v2  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 E3-1270 v2

Reasons to consider the
Intel Xeon E3-1270 v2

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Much lower typical power consumption 56.06W vs 112.55W 2x lower typical power consumption
Significantly newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 3.5 GHz vs 3.3 GHz More than 5% higher clock speed
Slightly higher turbo clock speed 3.9 GHz vs 3.7 GHz More than 5% higher turbo clock speed
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Slightly more l3 cache 8 MB vs 6 MB Around 35% more l3 cache; more data can be stored in the l3 cache for quick access later
Better PassMark score 9,465 vs 6,383 Around 50% better PassMark score
More threads 8 vs 4 Twice as many threads
Much lower annual home energy cost 16.62 $/year vs 41.29 $/year 2.5x lower annual home energy cost
More l3 cache per core 2 MB/core vs 1.5 MB/core Around 35% more l3 cache per core
Better PassMark (Single core) score 2,072 vs 1,863 More than 10% better PassMark (Single core) score
Much lower annual commercial energy cost 60.44 $/year vs 110.03 $/year More than 45% lower annual commercial energy cost
Newer May, 2012 vs Jan, 2011 Release date over 1 years later
Front view of Intel Core i5 2500K

Reasons to consider the
Intel Core i5 2500K

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Much better performance per dollar 4.1 pt/$ vs 0.69 pt/$ Around 6x better performance per dollar
Many more number of displays supported 2 vs 0 2 more number of displays supported
Significantly better performance per watt 6.79 pt/W vs 3.52 pt/W Around 95% better performance per watt

Benchmarks Real world tests of Xeon E3-1270 v2 vs Core i5 2500K

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 E3-1270 v2
2,620 MB/s
Core i5 2500K
2,530,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E3-1270 v2  vs
Core i5 2500K 
Clock speed 3.5 GHz 3.3 GHz
Turbo clock speed 3.9 GHz 3.7 GHz
Cores Quad core Quad core
Socket type
LGA 1155

features

Has a NX bit Yes Yes
Supports trusted computing Yes No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 69W 95W
Annual home energy cost 16.62 $/year 41.29 $/year
Annual commercial energy cost 60.44 $/year 110.03 $/year
Performance per watt 3.52 pt/W 6.79 pt/W
Typical power consumption 56.06W 112.55W

bus

Architecture DMI DMI
Number of links 1 1
Transfer rate 5,000 MT/s 5,000 MT/s

details

Xeon E3-1270 v2  vs
Core i5 2500K 
Architecture x86-64 x86-64
Threads 8 4
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 8 MB 6 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 22 nm 32 nm
Max CPUs 1 1
Clock multiplier 35 33

overclocking

Overclock popularity 0 3,179

integrated graphics

GPU GPU GPU
Number of displays supported 0 2

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3-1066
DDR3
Channels Dual Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 25,600 MB/s 21,333.32 MB/s
Maximum memory size 33,556.48 MB 32,768 MB
Intel Xeon E3-1270 v2
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Intel Core i5 2500K
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