CPUBoss Review Our evaluation of 6500 vs 6400 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

CPUBoss Score

Combination of all six facets

Winner
Intel Core i5 6500 

CPUBoss recommends the Intel Core i5 6500  based on its performance and single-core performance.

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VS

Differences What are the advantages of each

Front view of Intel Core i5 6500

Reasons to consider the
Intel Core i5 6500

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Higher clock speed 3.2 GHz vs 2.7 GHz Around 20% higher clock speed
Higher turbo clock speed 3.6 GHz vs 3.3 GHz Around 10% higher turbo clock speed
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Better turbo clock speed 1,050 MHz vs 950 MHz More than 10% better turbo clock speed
Better geekbench 3 Multi-Core score 13,537 vs 3,989.5 Around 3.5x better geekbench 3 Multi-Core score
Better performance per watt 3.9 pt/W vs 2.62 pt/W Around 50% better performance per watt
Front view of Intel Core i5 6400

Reasons to consider the
Intel Core i5 6400

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Better performance per dollar 1.07 pt/$ vs 0.63 pt/$ Around 70% better performance per dollar

Benchmarks Real world tests of Core i5 6500 vs 6400

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

Core i5 6500
30.46 mHash/s
Core i5 6400
24.14 mHash/s

CompuBench 1.5 (Face detection)

Core i5 6500
22.75 mPixels/s
Core i5 6400
19.56 mPixels/s

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

Core i5 6500
1.55 fps
Core i5 6400
1.16 fps

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i5 6500
13,537
Core i5 6400
3,989.5

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i5 6500
4,233
Core i5 6400
2,428.5

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i5 6500
5,880 MB/s
Core i5 6400
155.25 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i5 6500  vs
6400 
Clock speed 3.2 GHz 2.7 GHz
Turbo clock speed 3.6 GHz 3.3 GHz
Cores Quad core Quad core
Is unlocked No No

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
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 65W 65W
Annual home energy cost 15.66 $/year 15.66 $/year
Annual commercial energy cost 56.94 $/year 56.94 $/year
Performance per watt 3.9 pt/W 2.62 pt/W
Typical power consumption 52.81W 52.81W

bus

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

details

Core i5 6500  vs
6400 
Architecture x86-64 x86-64
Threads 4 4
L3 cache 6 MB 6 MB
L3 cache per core 1.5 MB/core 1.5 MB/core
Manufacture process 14 nm 14 nm
Max CPUs 1 1
Operating temperature Unknown - 71°C Unknown - 71°C

overclocking

Overclocked clock speed 3.8 GHz 3.64 GHz
Overclocked clock speed (Water) 4.33 GHz 4.46 GHz
Overclocked clock speed (Air) 3.8 GHz 3.64 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 530 Intel® HD Graphics 530
Number of displays supported 3 3
GPU clock speed 350 MHz 350 MHz
Turbo clock speed 1,050 MHz 950 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3L-1600
Channels Dual Channel Dual Channel
Supports ECC No No
Maximum bandwidth 25,600 MB/s 25,600 MB/s
Maximum memory size 65,536 MB 65,536 MB
Intel Core i5 6500
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Intel Core i5 6400
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