Intel Core i5-8400 vs Intel Core i7-6850K

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

Benchmark Score
Other Benchmarks
Specifications
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Intel Core i7-6850K

Price

The cheapest price from our partner retailers

$ 169.99

$ 85.00

$ 84.99 significantly less expensive

Benchmark Score

Overall Score

A combined score of all workloads

3741 points

4066 points

8% slightly better overall score

Gaming Score

The raw gaming performance with a fast GPU

6024 points

8% slightly better gaming score

5576 points

Multitasking Score

Performance in workloads using up to 8 cores

3030 points

3611 points

19% slightly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

2906 points

3510 points

20% slightly better heavy workload score

Free CPU Benchmark

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Other Benchmarks

3DMark Physics score

Physics simulation benchmark

3658 points

6133 points

67% significantly higher 3DMark Physics score

Blender score

Cycles Render (Samples per minute)

77.12 points

103.26 points

33% slightly higher Blender score

Geekbench 5 (multi) score

Multi threaded benchmark

4729 points

5539 points

17% slightly higher Geekbench 5 (multi) score

Geekbench 5 (single) score

Single threaded benchmark

1312 points

8% slightly higher Geekbench 5 (single) score

1210 points

Geekbench 6 (multi) score

Multi threaded benchmark

4858 points

5746 points

18% slightly higher Geekbench 6 (multi) score

Geekbench 6 (single) score

Single threaded benchmark

1380 points

7% slightly higher Geekbench 6 (single) score

1278 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

2.8 GHz

3.6 GHz

28% slightly higher clock speed

Turbo Speed

Higher frequency used for heavy workloads

4 GHz

5% slightly higher turbo speed

3.8 GHz

TDP

Thermal Design Power: Measure of heat generated by the CPU

65 W

115% significantly lower TDP

140 W

PCIe Lanes

Number of physical connections between the CPU and expansion slots

150% significantly more pcie lanes

Memory Channels

Lanes for simultaneous memory access

100% significantly more memory channels

Supported Memory

Maximum amount of RAM supported by this CPU

128 GiB

Identical

128 GiB

L1 Cache

Smallest embedded memory, but the fastest

384 KiB

Identical

384 KiB

L2 Cache

Secondary embedded memory, slower than L1 cache

1.5 MiB

Identical

1.5 MiB

L3 Cache

General memory pool for all cores

9 MiB

15 MiB

66% significantly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

456th of 1,089

429th of 1,089

Family

The product line

8th Generation Core i5

Core X-series

Release date

The official date of release of this chip

2017 November

2016 May

Memory Type

The type of memory used by this chip

DDR4-2666

DDR4-2400

Is Unlocked

Can this CPU can be overclocked

Supports ECC memory

Does this CPU support error correcting memory

Core i5-8400 vs Core i7-6850K comparison

According to the hardwareDB Benchmark tool, the Core i5-8400 is faster than the Core i7-6850K. Furthermore, our gaming benchmark shows that it also outperforms the Core i7-6850K in all gaming tests too.

Info from our database shows that they both have the same core count but the Core i7-6850K has more threads. With our hardware info, we find that the Core i7-6850K has a slightly higher clock speed than the Core i5-8400. Despite this, the Core i5-8400 has a slightly higher turbo speed. A Core i5-8400 CPU outputs less heat than a Core i7-6850K CPU because of its 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 i7-6850K also has significantly 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 i5-8400 has the same number of threads as cores. This means the the CPU does not support hyperthreading.