CPUBoss Review Our evaluation of E5-2603 v3 vs 5820K 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

5.5

CPUBoss Score

Combination of all six facets

Winner
Intel Core i7 5820K 

CPUBoss recommends the Intel Core i7 5820K  based on its performance, single-core performance and value.

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VS
Front view of Intel Core i7 5820K

Intel Core i7 5820K

CPUBoss Winner

Differences What are the advantages of each

Front view of Intel Xeon E5-2603 v3

Reasons to consider the
Intel Xeon E5-2603 v3

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Much lower typical power consumption 69.06W vs 113.75W Around 40% lower typical power consumption
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Supports more RAM 786,432 MB vs 65,536 MB Supports 12x more RAM
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Much lower annual home energy cost 20.48 $/year vs 33.73 $/year Around 40% lower annual home energy cost
Much lower annual commercial energy cost 74.46 $/year vs 122.64 $/year Around 40% lower annual commercial energy cost
Front view of Intel Core i7 5820K

Reasons to consider the
Intel Core i7 5820K

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Much higher clock speed 3.3 GHz vs 1.6 GHz More than 2x higher clock speed
Much better performance per dollar 3.87 pt/$ vs 0.81 pt/$ More than 4.8x better performance per dollar
Much better overclocked clock speed (Air) 4.34 GHz vs 1.68 GHz More than 2.5x better overclocked clock speed (Air)
Much better performance per watt 10.79 pt/W vs 2.14 pt/W More than 5x better performance per watt
Much better PassMark score 12,995 vs 5,140 More than 2.5x better PassMark score
Much better PassMark (Single core) score 2,017 vs 938 Around 2.2x better PassMark (Single core) score
More threads 12 vs 6 Twice as many threads
Much better overclocked clock speed (Water) 4.51 GHz vs 1.6 GHz More than 2.8x better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon E5-2603 v3 vs Core i7 5820K

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E5-2603 v3
15,585.5
Core i7 5820K
19,546

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5-2603 v3
2,265 MB/s
Core i7 5820K
4,050,000 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E5-2603 v3  vs
Core i7 5820K 
Clock speed 1.6 GHz 3.3 GHz
Cores Hexa core Hexa core

features

Has a NX bit Yes Yes
Supports trusted computing Yes No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 85W 140W
Annual home energy cost 20.48 $/year 33.73 $/year
Annual commercial energy cost 74.46 $/year 122.64 $/year
Performance per watt 2.14 pt/W 10.79 pt/W
Typical power consumption 69.06W 113.75W

bus

Architecture QPI QPI
Number of links 2 0
Transfer rate 6,400 MT/s 0 MT/s
Clock speed 3,200 MHz 0 MHz

details

Xeon E5-2603 v3  vs
Core i7 5820K 
Architecture x86-64 x86-64
Threads 6 12
L3 cache 15 MB 15 MB
L3 cache per core 2.5 MB/core 2.5 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 2 1

overclocking

Overclocked clock speed 1.68 GHz 4.34 GHz
Overclocked clock speed (Water) 1.6 GHz 4.51 GHz
Overclocked clock speed (Air) 1.68 GHz 4.34 GHz

integrated graphics

GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A

memory controller

Memory controller Built-in Built-in
Memory type
DDR4-1600
DDR4-1333
DDR4-2133
Channels Quad Channel Quad Channel
Supports ECC Yes No
Maximum memory size 786,432 MB 65,536 MB
Intel Xeon E5-2603 v3
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Intel Core i7 5820K
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