Intel Core i5-8400 vs Intel Core i7-8700T

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

CPU Comparison

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Benchmark Score

Overall Score

A combined score of all workloads

45 %
46 %
2% slightly better overall score

Gaming Score

The raw gaming performance with a fast GPU

71 %
10% slightly better gaming score
64 %

Multitasking Score

Performance in workloads using up to 8 cores

36 %
40 %
11% slightly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

35 %
39 %
11% slightly better heavy workload score

Free CPU Benchmark

Want to compare your processor against the Core i5-8400 and the Core i7-8700T? Download our free and quick PC Performance Test.

Other Benchmarks

Geekbench (multi) score

Multi threaded benchmark

4,496
4,762
5% slightly higher Geekbench (multi) score

Geekbench (single) score

Single threaded benchmark

1,032
0% slightly higher Geekbench (single) score
1,025

Specifications

Cores

Number of physical processing units

6
Identical
6

Threads

Number of logical processing units

6
12
100% significantly more threads

Clock Speed

Base frequency at which the chip operates

3 GHz
16% slightly higher clock speed
2 GHz

Turbo Speed

Higher frequency used for heavy workloads

4 GHz
Identical
4 GHz

TDP

Thermal Design Power: Measure of heat generated by the CPU

65 W
35 W
85% significantly lower TDP

PCIe Lanes

Number of physical connections between the CPU and expansion slots

16
Identical
16

Memory Channels

Lanes for simultaneous memory access

2
Identical
2

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

2 MiB
Identical
2 MiB

L3 Cache

General memory pool for all cores

9 MiB
12 MiB
33% slightly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

391st of 1,327
370th of 1,327

Family

The product line

8th Generation Core i5
8th Generation Core i7

Release date

The official date of release of this chip

November 2017
May 2018

Memory Type

The type of memory used by this chip

DDR4-2666
DDR4-2666

Is Unlocked

Can this CPU can be overclocked

No
No

Supports ECC memory

Does this CPU support error correcting memory

No
No

Core i5-8400 vs Core i7-8700T benchmarks

According to the hardwareDB Benchmark tool, the Core i7-8700T is faster than the Core i5-8400. Despite this, the Core i5-8400 has the advantage in our gaming benchmark.

Our spec comparison shows that they have an identical amount of cores but the Core i7-8700T has more threads. Our comparison shows that the Core i5-8400 has a slightly higher clock speed compared to the Core i7-8700T. In addition, both chips have the same turbo speed. The Core i7-8700T outputs less heat than Core i5-8400 thanks to a significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption. The data shows that both these CPUs have same sized L2 caches. The Core i7-8700T also has slightly more L3 cache.

The more cores a CPU has, the better the overall performance will be in parallel workloads such as multitasking. Many CPUs have more threads than cores, this means that each physical core is split into multiple logical cores, making them more efficient. For instance, the Core i5-8400 has the same number of threads as cores. This means the the CPU does not support hyperthreading.

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