CPUBoss Review Our evaluation of E5-4603 vs E5-2650 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

No winner declared

Too close to call

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VS

Differences What are the advantages of each

Front view of Intel Xeon E5-4603

Reasons to consider the
Intel Xeon E5-4603

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Supports more CPUs in SMP configuration 4 vs 2 Twice as many CPUs in SMP configuration
Front view of Intel Xeon E5-2650

Reasons to consider the
Intel Xeon E5-2650

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Much more l3 cache 20 MB vs 10 MB 2x more l3 cache; more data can be stored in the l3 cache for quick access later
Much more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much better PassMark score 10,190 vs 5,014 More than 2x better PassMark score
More cores 8 vs 4 Twice as many cores; run more applications at once
Much better performance per watt 6.61 pt/W vs 1.71 pt/W Around 4x better performance per watt
More threads 16 vs 8 Twice as many threads
Much better overclocked clock speed (Air) 2.55 GHz vs 2 GHz Around 30% better overclocked clock speed (Air)

Benchmarks Real world tests of Xeon E5-4603 vs E5-2650

PassMark Data courtesy Passmark

Xeon E5-4603
5,014
Xeon E5-2650
10,190

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E5-4603  vs
E5-2650 
Clock speed 2 GHz 2 GHz
Cores Quad core Octa core
Socket type
LGA 2011

features

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

power consumption

TDP 95W 95W
Annual home energy cost 22.89 $/year 22.89 $/year
Annual commercial energy cost 83.22 $/year 83.22 $/year
Performance per watt 1.71 pt/W 6.61 pt/W
Typical power consumption 77.19W 77.19W

bus

Architecture QPI QPI
Number of links 2 2
Data rate 51,200 MB/s 64,000 MB/s
Transfer rate 6,400 MT/s 8,000 MT/s
Clock speed 3,200 MHz 4,000 MHz

details

Xeon E5-4603  vs
E5-2650 
Architecture x86-64 x86-64
Threads 8 16
L2 cache 1 MB 2 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 10 MB 20 MB
L3 cache per core 2.5 MB/core 2.5 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 4 2
Voltage range 0.6 - 1.35V 0.6 - 1.35V

overclocking

Overclocked clock speed 2 GHz 2.55 GHz
Overclocked clock speed (Water) 2 GHz 2 GHz
Overclocked clock speed (Air) 2 GHz 2.55 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
DDR3-1600
DDR3-1333
DDR3-1066
DDR3
DDR3-800
Channels Quad Channel Quad Channel
Supports ECC Yes Yes
Maximum bandwidth 34,133.32 MB/s 51,200 MB/s
Maximum memory size 393,216 MB 393,216 MB
Intel Xeon E5-4603
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Intel Xeon E5-2650
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