CPUBoss Review Our evaluation of E5-2658A v3 vs E3-1275 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

8.2

CPUBoss Score

Combination of all six facets

Winner
Intel Xeon E3-1275 v3 

CPUBoss recommends the Intel Xeon E3-1275 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 E5-2658A v3

Reasons to consider the
Intel Xeon E5-2658A v3

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Much more l3 cache 30 MB vs 8 MB 3.8x more l3 cache; more data can be stored in the l3 cache for quick access later
More threads 24 vs 8 Three times as many threads
Supports more RAM 786,432 MB vs 32,768 MB Supports 24x more RAM
More cores 12 vs 4 Three times as many cores; run more applications at once
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Newer Jan, 2015 vs Apr, 2013 Release date over 1 years later
Front view of Intel Xeon E3-1275 v3

Reasons to consider the
Intel Xeon E3-1275 v3

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Much higher clock speed 3.5 GHz vs 2.2 GHz Around 60% higher clock speed
Much higher turbo clock speed 3.9 GHz vs 2.9 GHz Around 35% higher turbo clock speed
Much better overclocked clock speed (Air) 3.88 GHz vs 2.2 GHz More than 75% better overclocked clock speed (Air)
Much better performance per watt 13.73 pt/W vs 1.47 pt/W More than 9.2x better performance per watt
Much better performance per dollar 3.2 pt/$ vs 0.08 pt/$ More than 38x better performance per dollar
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Lower typical power consumption 68.25W vs 85.31W 20% lower typical power consumption
Much better overclocked clock speed (Water) 3.5 GHz vs 2.2 GHz Around 60% better overclocked clock speed (Water)
Lower annual commercial energy cost 73.58 $/year vs 91.98 $/year 20% lower annual commercial energy cost
Lower annual home energy cost 20.24 $/year vs 25.29 $/year Around 20% lower annual home energy cost

Benchmarks Real world tests of Xeon E5-2658A v3 vs E3-1275 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 E5-2658A v3
3,450 MB/s
Xeon E3-1275 v3
4,185,000 MB/s

Specifications Full list of technical specs

summary

Xeon E5-2658A v3  vs
E3-1275 v3 
Clock speed 2.2 GHz 3.5 GHz
Turbo clock speed 2.9 GHz 3.9 GHz
Cores Duodeca core Quad core

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
F16C
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
FMA3
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 105W 84W
Annual home energy cost 25.29 $/year 20.24 $/year
Annual commercial energy cost 91.98 $/year 73.58 $/year
Performance per watt 1.47 pt/W 13.73 pt/W
Typical power consumption 85.31W 68.25W

bus

Architecture QPI DMI
Number of links 2 0
Transfer rate 9,600 MT/s 5,000 MT/s

details

Xeon E5-2658A v3  vs
E3-1275 v3 
Architecture x86-64 x86-64
Threads 24 8
L3 cache 30 MB 8 MB
L3 cache per core 2.5 MB/core 2 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 2 1

overclocking

Overclocked clock speed 2.2 GHz 3.88 GHz
Overclocked clock speed (Water) 2.2 GHz 3.5 GHz
Overclocked clock speed (Air) 2.2 GHz 3.88 GHz

integrated graphics

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

memory controller

Memory controller Built-in Built-in
Channels Quad Channel Dual Channel
Supports ECC Yes Yes
Maximum memory size 786,432 MB 32,768 MB
Intel Xeon E5-2658A v3
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Intel Xeon E3-1275 v3
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