CPUBoss Review Our evaluation of E3-1276 v3 vs E3-1231 v3 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

8.4

CPUBoss Score

Combination of all six facets

Winner
Intel Xeon E3-1231 v3 

CPUBoss recommends the Intel Xeon E3-1231 v3  based on its cost to run and value.

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VS

Differences What are the advantages of each

Front view of Intel Xeon E3-1276 v3

Reasons to consider the
Intel Xeon E3-1276 v3

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Significantly higher clock speed 3.6 GHz vs 3.4 GHz More than 5% higher clock speed
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Higher turbo clock speed 4 GHz vs 3.8 GHz More than 5% higher turbo clock speed
Front view of Intel Xeon E3-1231 v3

Reasons to consider the
Intel Xeon E3-1231 v3

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Much better performance per watt 18.71 pt/W vs 3.4 pt/W More than 5.5x better performance per watt
Much better performance per dollar 5.83 pt/$ vs 0.83 pt/$ More than 7x better performance per dollar
Better overclocked clock speed (Air) 3.76 GHz vs 3.6 GHz Around 5% better overclocked clock speed (Air)
Significantly better overclocked clock speed (Water) 3.81 GHz vs 3.6 GHz More than 5% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon E3-1276 v3 vs E3-1231 v3

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 E3-1276 v3
5,310 MB/s
Xeon E3-1231 v3
4,175,000 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E3-1276 v3  vs
E3-1231 v3 
Clock speed 3.6 GHz 3.4 GHz
Turbo clock speed 4 GHz 3.8 GHz
Cores Quad 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 84W 80W
Annual home energy cost 20.24 $/year 19.27 $/year
Annual commercial energy cost 73.58 $/year 70.08 $/year
Performance per watt 3.4 pt/W 18.71 pt/W
Typical power consumption 68.25W 65W

bus

Architecture DMI 2.0 DMI 2.0
Number of links 0 0
Transfer rate 5,000 MT/s 5,000 MT/s

details

Xeon E3-1276 v3  vs
E3-1231 v3 
Architecture x86-64 x86-64
Threads 8 8
L3 cache 8 MB 8 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.6 GHz 3.76 GHz
Overclocked clock speed (Water) 3.6 GHz 3.81 GHz
Overclocked clock speed (Air) 3.6 GHz 3.76 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics P4600 N/A
Number of displays supported 3 N/A
GPU clock speed 350 MHz N/A
Turbo clock speed 1,250 MHz N/A

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3
Channels Dual Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 25,600 MB/s 25,600 MB/s
Maximum memory size 32,768 MB 32,768 MB
Intel Xeon E3-1276 v3
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Intel Xeon E3-1231 v3
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