CPUBoss Review Our evaluation of E5-2620 v3 vs E3-1245 v2 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

8.3

CPUBoss Score

Combination of all six facets

Winner
Intel Xeon E3-1245 v2 

CPUBoss recommends the Intel Xeon E3-1245 v2  based on its cost to run.

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VS

Differences What are the advantages of each

Front view of Intel Xeon E5-2620 v3

Reasons to consider the
Intel Xeon E5-2620 v3

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Much more l3 cache 15 MB vs 8 MB Around 90% more l3 cache; more data can be stored in the l3 cache for quick access later
Supports more RAM 786,432 MB vs 33,556.48 MB Supports around 23.5x more RAM
More cores 6 vs 4 2 more cores; run more applications at once
More threads 12 vs 8 4 more threads
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 Jul, 2014 vs May, 2012 Release date over 2 years later
Front view of Intel Xeon E3-1245 v2

Reasons to consider the
Intel Xeon E3-1245 v2

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Much higher clock speed 3.4 GHz vs 2.4 GHz More than 40% higher clock speed
Significantly higher turbo clock speed 3.8 GHz vs 3.2 GHz Around 20% higher turbo clock speed
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much better overclocked clock speed (Air) 3.75 GHz vs 2.66 GHz More than 40% better overclocked clock speed (Air)
Lower typical power consumption 62.56W vs 69.06W Around 10% lower typical power consumption
Much better overclocked clock speed (Water) 3.4 GHz vs 2.87 GHz Around 20% better overclocked clock speed (Water)
Lower annual home energy cost 18.55 $/year vs 20.48 $/year Around 10% lower annual home energy cost
Lower annual commercial energy cost 67.45 $/year vs 74.46 $/year Around 10% lower annual commercial energy cost

Benchmarks Real world tests of Xeon E5-2620 v3 vs E3-1245 v2

CompuBench 1.5 (Ocean surface simulation) Data courtesy CompuBench

Xeon E5-2620 v3
194.02 fps
Xeon E3-1245 v2
83.73 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 E5-2620 v3
2,750,000 MB/s
Xeon E3-1245 v2
2,520,000 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E5-2620 v3  vs
E3-1245 v2 
Clock speed 2.4 GHz 3.4 GHz
Turbo clock speed 3.2 GHz 3.8 GHz
Cores Hexa 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 85W 77W
Annual home energy cost 20.48 $/year 18.55 $/year
Annual commercial energy cost 74.46 $/year 67.45 $/year
Performance per watt 12.6 pt/W 9.49 pt/W
Typical power consumption 69.06W 62.56W

bus

Architecture QPI DMI
Number of links 2 1
Transfer rate 8,000 MT/s 5,000 MT/s

details

Xeon E5-2620 v3  vs
E3-1245 v2 
Architecture x86-64 x86-64
Threads 12 8
L3 cache 15 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 2.66 GHz 3.75 GHz
Overclocked clock speed (Water) 2.87 GHz 3.4 GHz
Overclocked clock speed (Air) 2.66 GHz 3.75 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics P4000
Number of displays supported N/A 3
GPU clock speed N/A 650 MHz
Turbo clock speed N/A 1,250 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3
DDR
Channels Quad Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 6,400 MB/s 25,600 MB/s
Maximum memory size 786,432 MB 33,556.48 MB
Intel Xeon E5-2620 v3
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Intel Xeon E3-1245 v2
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