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

8.6

CPUBoss Score

Combination of all six facets

Winner
Intel Xeon E3-1245 v3 

CPUBoss recommends the Intel Xeon E3-1245 v3  based on its value.

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VS

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 turbo clock speed 1,250 MHz vs 1,200 MHz Around 5% better turbo clock speed
Better CompuBench 1.5 bitcoin mining score 16.57 mHash/s vs 7.65 mHash/s Around 2.2x better CompuBench 1.5 bitcoin mining score
Better overclocked clock speed (Air) 3.88 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

Report a correction
Better performance per dollar 3.55 pt/$ vs 3.05 pt/$ More than 15% better performance per dollar

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

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

Xeon E3-1275 v3
16.57 mHash/s
Xeon E3-1245 v3
7.65 mHash/s

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

Xeon E3-1275 v3
1.76 fps
Xeon E3-1245 v3
1.29 fps

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 E3-1275 v3
4,185,000 MB/s
Xeon E3-1245 v3
4,420,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench (64-bit) Data courtesy Primate Labs

PassMark Data courtesy Passmark

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

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 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 13.06 pt/W 12.25 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

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 nm 22 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.88 GHz 3.4 GHz
Overclocked clock speed (Water) 3.5 GHz 3.4 GHz
Overclocked clock speed (Air) 3.88 GHz 3.4 GHz

integrated graphics

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
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 E3-1275 v3
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Intel Xeon E3-1245 v3
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