CPUBoss Review Our evaluation of E3-1275 v3 vs E3-1245 v3

Performance

Benchmark performance using all cores

Passmark and GeekBench

Single-core Performance

Individual core benchmark performance

Passmark (Single Core)

Power Consumption

How much power does the processor require?

TDP

Value

Performance Per Dollar

No winner declared

Too close to call

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Differences What are the advantages of each

Front view of Intel Xeon E3-1275 v3

Reasons to consider the
Intel Xeon E3-1275 v3

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Better overclocked clock speed (Air) 3.9 GHz vs 3.4 GHz Around 15% better overclocked clock speed (Air)
Front view of Intel Xeon E3-1245 v3

Reasons to consider the
Intel Xeon E3-1245 v3

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Better performance per dollar 5.36 pt/$ vs 4.47 pt/$ More than 20% better performance per dollar

Benchmarks Real world tests of Xeon E3-1275 v3 vs E3-1245 v3

Specifications Full list of technical specs

summary

Xeon E3-1275 v3  vs
E3-1245 v3 
Clock speed 3.5 GHz 3.4 GHz
Turbo clock speed 3.9 GHz 3.8 GHz
Cores Quad core Quad core
Is hyperthreaded Yes Yes

features

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

gpu

GPU GPU GPU
Label Intel® HD Graphics P4600 Intel® HD Graphics P4600
Number of displays supported 3 3
GPU clock speed 350 MHz 350 MHz
Turbo clock speed 1,250 MHz 1,200 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
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

details

Xeon E3-1275 v3  vs
E3-1245 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 nms 22 nms
Max CPUs 1 1

overclocking

Overclocked clock speed 3.9 GHz 3.4 GHz
Overclocked clock speed (Water) 3.5 GHz 3.4 GHz
Overclocked clock speed (Air) 3.9 GHz 3.4 GHz

power consumption

TDP 84W 84W
Annual home energy cost 20.24 $/year 20.24 $/year
Annual commercial energy cost 73.58 $/year 73.58 $/year
Performance per watt 18.61 pt/W 18.46 pt/W
Typical power consumption 68.25W 68.25W

bus

Architecture DMI DMI
Number of links 0 0
Transfer rate 5,000 MT/s 5,000 MT/s
Intel Xeon E3-1275 v3
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Intel Xeon E3-1245 v3
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