Intel Core i5-6400 vs Intel Core i7-8650U

Compare Intel 6th Generation Core i5 4 core CPU vs Intel 8th Generation Core i7 4 core processor, specs and benchmark score. Which is the better CPU for gaming?

Benchmark Score
Other Benchmarks
Specifications
Comments (0)
Popular Comparisons

CPU Comparison

Quickly search and compare processors

Benchmark Score

Overall Score

A combined score of all workloads

2127 points

6% slightly better overall score

2006 points

Gaming Score

The raw gaming performance with a fast GPU

3959 points

16% slightly better gaming score

3386 points

Multitasking Score

Performance in workloads using up to 8 cores

1617 points

0.43% slightly better multitasking score

1610 points

Heavy Workload Score

Performance in workloads using up to 16 cores

1551 points

0.78% slightly better heavy workload score

1539 points

Free CPU Benchmark

Want to compare your processor against the Core i5-6400 and the Core i7-8650U? Download our free and quick PC Performance Test.

Download CPU Benchmark

Other Benchmarks

Blender score

Cycles Render (Samples per minute)

39.92 points

45.01 points

12% slightly higher Blender score

Geekbench 5 (multi) score

Multi threaded benchmark

2948 points

8% slightly higher Geekbench 5 (multi) score

2710 points

Geekbench 5 (single) score

Single threaded benchmark

1079 points

20% slightly higher Geekbench 5 (single) score

895 points

Specifications

Cores

Number of physical processing units

Identical

Threads

Number of logical processing units

100% significantly more threads

Clock Speed

Base frequency at which the chip operates

2.7 GHz

42% slightly higher clock speed

1.9 GHz

Turbo Speed

Higher frequency used for heavy workloads

3.3 GHz

4.2 GHz

27% slightly higher turbo speed

TDP

Thermal Design Power: Measure of heat generated by the CPU

65 W

15 W

333% significantly lower TDP

PCIe Lanes

Number of physical connections between the CPU and expansion slots

33% slightly more pcie lanes

Memory Channels

Lanes for simultaneous memory access

Identical

Supported Memory

Maximum amount of RAM supported by this CPU

64 GiB

100% significantly more supported memory

32 GiB

L1 Cache

Smallest embedded memory, but the fastest

256 KiB

Identical

256 KiB

L2 Cache

Secondary embedded memory, slower than L1 cache

1 MiB

Identical

1 MiB

L3 Cache

General memory pool for all cores

6 MiB

8 MiB

33% slightly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

699th of 1,089

715th of 1,089

Family

The product line

6th Generation Core i5

8th Generation Core i7

Release date

The official date of release of this chip

2015 August

2017 August

Memory Type

The type of memory used by this chip

DDR4-1866

DDR4-2400

Is Unlocked

Can this CPU can be overclocked

Supports ECC memory

Does this CPU support error correcting memory

Core i5-6400 vs Core i7-8650U benchmarks

According to the hardwareDB Benchmark tool, the Core i5-6400 is faster than the Core i7-8650U. Furthermore, our gaming benchmark shows that it also outperforms the Core i7-8650U in all gaming tests too.

Info from our database shows that they both have the same core count but the Core i7-8650U has more threads. Our comparison shows that the Core i5-6400 has a slightly higher clock speed compared to the Core i7-8650U. Despite this, the Core i7-8650U has a slightly higher turbo speed. The Core i7-8650U outputs less heat than Core i5-6400 thanks to a significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption. In terms of cache, both these CPUs have the same amount of L2 cache. The Core i7-8650U also has slightly more L3 cache.

Modern CPUs generally have more logical cores than physical cores, this means that each core is split into multiple virtual cores, improving efficiency for parallel workloads. For instance, the Core i5-6400 has the same number of threads as cores. This means the the CPU does not support hyperthreading.