CPUBoss Review Our evaluation of E5-4650L vs 3970X 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 3970X 

CPUBoss recommends the Intel Core i7 3970X  based on its performance, single-core performance and value.

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VS

Differences What are the advantages of each

Front view of Intel Xeon E5-4650L

Reasons to consider the
Intel Xeon E5-4650L

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Supports more CPUs in SMP configuration 4 vs 1 3 supports more CPUs in SMP configuration
More l3 cache 20 MB vs 15 MB Around 35% more l3 cache; more data can be stored in the l3 cache for quick access later
Significantly lower typical power consumption 93.44W vs 121.88W Around 25% lower typical power consumption
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
More cores 8 vs 6 2 more cores; run more applications at once
More threads 16 vs 12 4 more threads
Supports more RAM 393,216 MB vs 65,996.8 MB Supports around 6x more RAM
Significantly lower annual home energy cost 27.7 $/year vs 36.13 $/year Around 25% lower annual home energy cost
Significantly lower annual commercial energy cost 100.74 $/year vs 131.4 $/year Around 25% lower annual commercial energy cost
Front view of Intel Core i7 3970X

Reasons to consider the
Intel Core i7 3970X

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Significantly higher clock speed 3.5 GHz vs 2.6 GHz Around 35% higher clock speed
Significantly higher turbo clock speed 4 GHz vs 3.1 GHz Around 30% higher turbo clock speed
Much better performance per dollar 1.11 pt/$ vs 0.09 pt/$ Around 12.8x better performance per dollar
Much better overclocked clock speed (Air) 4.57 GHz vs 2.79 GHz Around 65% better overclocked clock speed (Air)
Much better performance per watt 8.17 pt/W vs 2.77 pt/W Around 3x better performance per watt
Significantly better PassMark (Single core) score 2,047 vs 1,367 Around 50% better PassMark (Single core) score
Much better overclocked clock speed (Water) 4.44 GHz vs 2.6 GHz More than 70% better overclocked clock speed (Water)
Better PassMark score 12,923 vs 11,821 Around 10% better PassMark score
More l2 cache per core 0.33 MB/core vs 0.25 MB/core Around 35% more l2 cache per core
Newer Nov, 2012 vs May, 2012 Release date 6 months later

Benchmarks Real world tests of Xeon E5-4650L vs Core i7 3970X

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E5-4650L  vs
Core i7 3970X 
Clock speed 2.6 GHz 3.5 GHz
Turbo clock speed 3.1 GHz 4 GHz
Cores Octa core Hexa core
Socket type
LGA 2011

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
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 115W 150W
Annual home energy cost 27.7 $/year 36.13 $/year
Annual commercial energy cost 100.74 $/year 131.4 $/year
Performance per watt 2.77 pt/W 8.17 pt/W
Typical power consumption 93.44W 121.88W

bus

Architecture QPI DMI 2.0
Number of links 2 1
Transfer rate 8,000 MT/s 5,000 MT/s

details

Xeon E5-4650L  vs
Core i7 3970X 
Architecture x86-64 x86-64
Threads 16 12
L2 cache 2 MB 2 MB
L2 cache per core 0.25 MB/core 0.33 MB/core
L3 cache 20 MB 15 MB
L3 cache per core 2.5 MB/core 2.5 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 4 1
Voltage range 0.6 - 1.35V 0.6 - 1.35V

overclocking

Overclocked clock speed 2.79 GHz 4.57 GHz
Overclocked clock speed (Water) 2.6 GHz 4.44 GHz
Overclocked clock speed (Air) 2.79 GHz 4.57 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 No
Maximum bandwidth 51,200 MB/s 51,200 MB/s
Maximum memory size 393,216 MB 65,996.8 MB
Intel Xeon E5-4650L
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Intel Core i7 3970X
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