CPUBoss Review Our evaluation of 6500 vs 6400T 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 i5 6400T 

CPUBoss recommends the Intel Core i5 6400T  based on its power consumption.

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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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Much better 3DMark06 CPU score 65 vs 52.8 Around 25% better 3DMark06 CPU score
Significantly higher clock speed 3.2 GHz vs 2.2 GHz More than 45% higher clock speed
Higher turbo clock speed 3.6 GHz vs 2.8 GHz Around 30% higher turbo clock speed
Much better geekbench 3 Multi-Core score 13,537 vs 4,389 More than 3x better geekbench 3 Multi-Core score
Much better geekbench 3 AES single core score 5,880 MB/s vs 853 MB/s Around 7x better geekbench 3 AES single core score
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 performance per watt 3.9 pt/W vs 2.9 pt/W Around 35% better performance per watt
Higher Maximum operating temperature 71 °C vs 66 °C Around 10% higher Maximum operating temperature
Front view of Intel Core i5 6400T

Reasons to consider the
Intel Core i5 6400T

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Significantly lower typical power consumption 28.44W vs 52.81W More than 45% lower typical power consumption
Significantly lower annual home energy cost 8.43 $/year vs 15.66 $/year More than 45% lower annual home energy cost
Significantly lower annual commercial energy cost 30.66 $/year vs 56.94 $/year More than 45% lower annual commercial energy cost

Benchmarks Real world tests of Core i5 6500 vs 6400T

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i5 6500
5,880 MB/s
Core i5 6400T
853 MB/s

3D Mark 06 (CPU)

Specifications Full list of technical specs

summary

Core i5 6500  vs
6400T 
Clock speed 3.2 GHz 2.2 GHz
Turbo clock speed 3.6 GHz 2.8 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

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

details

Core i5 6500  vs
6400T 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
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 - 66°C

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

power consumption

TDP 65W 35W
Annual home energy cost 15.66 $/year 8.43 $/year
Annual commercial energy cost 56.94 $/year 30.66 $/year
Performance per watt 3.9 pt/W 2.9 pt/W
Typical power consumption 52.81W 28.44W

bus

Architecture FSB FSB
Number of links 1 1
Transfer rate 8,000 MT/s 8,000 MT/s
Intel Core i5 6500
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Intel Core i5 6400T
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