CPUBoss Review Our evaluation of 2643 v2 vs 6700 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

8.6

CPUBoss Score

Combination of all six facets

Winner
Intel Core i7 6700 

CPUBoss recommends the Intel Core i7 6700  based on its power consumption.

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VS

Differences What are the advantages of each

Front view of Intel Xeon E5 2643 v2

Reasons to consider the
Intel Xeon E5 2643 v2

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Much more l2 cache 2.5 MB vs 1 MB 2.5x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l3 cache 25 MB vs 8 MB Around 3.2x more l3 cache; more data can be stored in the l3 cache for quick access later
Much more l3 cache per core 4.17 MB/core vs 2 MB/core More than 2x more l3 cache per core
More threads 20 vs 8 12 more threads
Much better performance per watt 10.7 pt/W vs 4.09 pt/W More than 2.5x better performance per watt
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
More cores 6 vs 4 2 more cores; run more applications at once
More l2 cache per core 0.42 MB/core vs 0.25 MB/core More than 65% more l2 cache per core
Front view of Intel Core i7 6700

Reasons to consider the
Intel Core i7 6700

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much lower typical power consumption 52.81W vs 105.63W 2x lower typical power consumption
Significantly newer manufacturing process 14 nm vs 22 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Slightly higher turbo clock speed 4 GHz vs 3.8 GHz More than 5% higher turbo clock speed
Much lower annual home energy cost 15.66 $/year vs 31.32 $/year 2x lower annual home energy cost
Much lower annual commercial energy cost 56.94 $/year vs 113.88 $/year 2x lower annual commercial energy cost
Better overclocked clock speed (Air) 3.98 GHz vs 3.57 GHz More than 10% better overclocked clock speed (Air)

Features Key features of the Xeon E5 2643 v2  vs Core i7 6700 

clock speed

Xeon E5 2643 v2
3.5 GHz
Core i7 6700
3.4 GHz

turbo clock speed

L2 cache

L3 cache

overclocked clock speed (air)

Xeon E5 2643 v2
3.57 GHz
Core i7 6700
3.98 GHz

overclocked clock speed (water)

Xeon E5 2643 v2
4.07 GHz
Core i7 6700
4.18 GHz

Specifications Full list of technical specs

summary

Xeon E5 2643 v2  vs
Core i7 6700 
Clock speed 3.5 GHz 3.4 GHz
Turbo clock speed 3.8 GHz 4 GHz
Cores Hexa core Quad core
Is unlocked No No

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 130W 65W
Annual home energy cost 31.32 $/year 15.66 $/year
Annual commercial energy cost 113.88 $/year 56.94 $/year
Performance per watt 10.7 pt/W 4.09 pt/W
Typical power consumption 105.63W 52.81W

bus

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

details

Xeon E5 2643 v2  vs
Core i7 6700 
Architecture x86-64 x86-64
Threads 20 8
L2 cache 2.5 MB 1 MB
L2 cache per core 0.42 MB/core 0.25 MB/core
L3 cache 25 MB 8 MB
L3 cache per core 4.17 MB/core 2 MB/core
Manufacture process 22 nm 14 nm
Max CPUs 2 1
Operating temperature Unknown - 74°C Unknown - 71°C

overclocking

Overclocked clock speed 3.57 GHz 3.98 GHz
Overclocked clock speed (Water) 4.07 GHz 4.18 GHz
Overclocked clock speed (Air) 3.57 GHz 3.98 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics 530
Number of displays supported N/A 3
GPU clock speed N/A 350 MHz
Turbo clock speed N/A 1,150 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3L-1600
DDR3
Channels Quad Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 25,600 MB/s 25,600 MB/s
Maximum memory size 786,432 MB 65,536 MB
Intel Xeon E5 2643 v2
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Intel Core i7 6700
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