CPUBoss Review Our evaluation of E5-2648L v3 vs E5-2640 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

5.6

CPUBoss Score

Combination of all six facets

Winner
Intel Xeon E5-2640 v3 

CPUBoss recommends the Intel Xeon E5-2640 v3  based on its value.

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VS

Differences What are the advantages of each

Front view of Intel Xeon E5-2648L v3

Reasons to consider the
Intel Xeon E5-2648L v3

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Much more l3 cache 30 MB vs 20 MB 50% more l3 cache; more data can be stored in the l3 cache for quick access later
Much higher Maximum operating temperature 87.03 °C vs 74.3 °C More than 15% higher Maximum operating temperature
More threads 24 vs 16 8 more threads
Lower typical power consumption 60.94W vs 73.13W More than 15% lower typical power consumption
Lower annual commercial energy cost 65.7 $/year vs 78.84 $/year More than 15% lower annual commercial energy cost
Lower annual home energy cost 18.07 $/year vs 21.68 $/year More than 15% lower annual home energy cost
Front view of Intel Xeon E5-2640 v3

Reasons to consider the
Intel Xeon E5-2640 v3

Report a correction
Much higher clock speed 2.6 GHz vs 1.8 GHz Around 45% higher clock speed
Much higher turbo clock speed 3.4 GHz vs 2.5 GHz More than 35% higher turbo clock speed
Much better performance per watt 24.65 pt/W vs 4.45 pt/W More than 5.5x better performance per watt
Much better performance per dollar 2.22 pt/$ vs 0.22 pt/$ More than 10.2x better performance per dollar
Much better overclocked clock speed (Air) 2.6 GHz vs 1.8 GHz Around 45% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 2.6 GHz vs 1.8 GHz Around 45% better overclocked clock speed (Water)

Features Key features of the Xeon E5-2648L v3  vs E5-2640 v3 

clock speed

turbo clock speed

L3 cache

overclocked clock speed (air)

overclocked clock speed (water)

Specifications Full list of technical specs

summary

Xeon E5-2648L v3  vs
E5-2640 v3 
Clock speed 1.8 GHz 2.6 GHz
Turbo clock speed 2.5 GHz 3.4 GHz
Cores Duodeca core Octa core

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
AES
AVX
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 75W 90W
Annual home energy cost 18.07 $/year 21.68 $/year
Annual commercial energy cost 65.7 $/year 78.84 $/year
Performance per watt 4.45 pt/W 24.65 pt/W
Typical power consumption 60.94W 73.13W

bus

Architecture QPI QPI
Number of links 2 2
Data rate 76,800 MB/s 64,000 MB/s
Transfer rate 9,600 MT/s 8,000 MT/s
Clock speed 4,800 MHz 4,000 MHz

details

Xeon E5-2648L v3  vs
E5-2640 v3 
Architecture x86-64 x86-64
Threads 24 16
L3 cache 30 MB 20 MB
L3 cache per core 2.5 MB/core 2.5 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 2 2
Operating temperature Unknown - 87.03°C Unknown - 74.3°C

overclocking

Overclocked clock speed 1.8 GHz 2.6 GHz
Overclocked clock speed (Water) 1.8 GHz 2.6 GHz
Overclocked clock speed (Air) 1.8 GHz 2.6 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
DDR
Channels Quad Channel Quad Channel
Supports ECC Yes Yes
Maximum bandwidth 6,400 MB/s 6,400 MB/s
Maximum memory size 786,432 MB 786,432 MB
Intel Xeon E5-2648L v3
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Intel Xeon E5-2640 v3
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