Intel Core i5-8400H Review

Mid-range Laptop processor released in 2018 with 4 cores and 8 threads. With base clock at 2.5GHz, max speed at 4.2GHz, and a 45W power rating. Core i5-8400H is based on the Coffee Lake-H 14nm family and part of the Core i5 series.
Price 69%
Speed 58%
Productivity 39%
Gaming 83%
Category Laptop
Target mid-range
Socket Compatibility 1440
Integrated Graphics
Cooler Included Yes
Overclock Potential 0 %
Year 2018 Model
Price 250 USD
Number of Cores 4 Cores
Number of Threads 8 Threads
Core Frequency 2.5 GHz
Boost Frequency 4.2 GHz
Max Stable Overclock 4.2 GHz
Power Consumption 45 W
Manufacturing Process 14 nm
L3 Cache 8 MB
Maximum Supported Memory 64 GB
Price-Value Score 69 %
Speed Score 58 %
Productivity Score 39 %
Gaming Score 83 %
Max 1080p Bottleneck 36.4 %
Max 1440p Bottleneck 18.2 %
Max 4K Bottleneck 9.1 %
Overall Score 38/100

The Core i5-8400H is one of Intel's mid-range Laptop processors. It was released in 2018 with 4 cores and 8 threads. With base clock at 2.5GHz, max speed at 4.2GHz, and a 45W power rating. The Core i5-8400H is based on the Coffee Lake-H 14nm family and is part of the Core i5 series.

Core i5-8400H is also the successor of Intel's last gen Core i5-7300HQ processor that was based on the Kaby Lake M and 14nm process and was released in 2017.

In our mind, the best processors are the ones that deliver outstanding performance at a reasonable price point. And, the Core i5-8400H absolutely nails this concept.

As the higher-priced version of the Core i5-8300H, the Core i5-8400H has higher base and Boost frequencies of 2.5 and 4.2 GHz, respectively. That's an increase in base frequency and a bump to boost clocks, but the real advantage should lay in the higher Package Power Tracking (PPT) envelope, which is a measurement of the maximum amount of power delivered to the socket. The Core i5-8300H's PPT tops out at 45W, while the motherboard can pump up to 142W to the Core i5-8400H at peak performance. That opens up much more aggressive boost behavior, on both single and multiple cores, that could widen the performance gap beyond what we see on the spec sheet.

What this all means is that the Intel Core i5-8400H is an absolute beast when it comes to multi-threaded workloads, especially at this price point. If you're counting on doing some video editing or compiling one hell of an Excel spreadsheet, you're going to see firsthand a performance boost with the Core i5-8400H.

The Intel Core i5-8400H is another impressive release from Intel and its 8 Generation of Core i5 chips. With it, you’re getting 4-cores and 8-threads, with a boost clock of 4.2GHz. It may not be the strongest contender ever made on paper, but when you see and feel the actual performance gains it offers, you’re certainly getting a lot of bang for your $250 buck.

Bear in mind, however, that if you already have something like the Core i5-7300HQ, this generation doesn't offer the biggest boost in performance. You might want to wait another year or so before dropping a few hundred bucks, or even opt to splurge on a higher-end but pricier chip.

One of the nice things about the Intel Core i5-8400H processors is that the retail boxed models come with a CPU cooler. So, you can pick something like the Intel Core i5-8400H up for $250 and don’t need to spend any extra money on CPU cooling.

The Intel Core i5-8400H retail boxed processor comes with the traditional ‘pancake’ CPU cooler. Nothing fancy, but it gets the job done on this processor which is rated at 45W TDP. You do not need to have an aftermarket cooling solution unless you want to.

The gaming tests with an NVIDIA GeForce RTX 2080 Ti installed in the test system showed the Intel Core i5-8400H was more capable than many might have expected. The basic mid-range processor from Intel that can be picked up for $250 was able to out perform the Ryzen 5 3580U that runs $286.26 shipped in the three games we tested on. We know that you can’t test on just three games and declare something the overall victor, but it just goes to show that 4-core processors can still manage to get by today. Being able to play current game titles and stream to Twitch on the Core i5-8400H was something we give playable results, but we were pleasantly surprised. As games become more threaded the ‘value’ in a 4-core processor continues to go down, but you can still get by with something like the Core i5-8400H in a pinch.

If extended overclocking and boost frequencies are trivial matters to you, Intel also offers the Core i5-8300H at $250. It’s still outfitted with 4-cores and 8-threads, but clocks in at a slower 2.3GHz and maxes out at only 4GHz.

Now the biggest question is can Intel’s Core i5 processor play games? The answer is simply yes as it got a respectable gaming score of 83% in our benchmarks.

Which GPU to Pick for Intel Core i5-8400H

Below is a comparison of all graphics cards average FPS performance (using an average of 80+ games at ultra quality settings), combined with the Intel Core i5-8400H.

Graphics Card Price Cost Per Frame Avg 1080p Avg 1440p Avg 4K
NVIDIA GeForce RTX 4090 24GB $ 1,599 $ 6.4 251.6 FPS
247.7 FPS
174.4 FPS
NVIDIA GeForce RTX 4080 Ti 20GB $ 799 $ 3.4 234.8 FPS
231.1 FPS
162.8 FPS
AMD Radeon RX 7900 XTX 24GB $ 999 $ 4.4 227.1 FPS
219.4 FPS
140.7 FPS
NVIDIA GeForce RTX 4080 16GB $ 1,199 $ 5.5 218.1 FPS
214.5 FPS
151.1 FPS
NVIDIA GeForce RTX 4070 Ti 12GB $ 799 $ 3.8 209.5 FPS
206 FPS
145 FPS
AMD Radeon RX 7900 XT 20GB $ 899 $ 4.4 206.5 FPS
199.5 FPS
127.8 FPS
NVIDIA GeForce RTX 3090 24GB $ 1,499 $ 7.6 196 FPS
186 FPS
123.3 FPS
AMD Radeon RX 6950 XT 16GB $ 1,099 $ 5.9 187.6 FPS
181.3 FPS
116.1 FPS
NVIDIA GeForce RTX 3090 Ti 24GB $ 1,999 $ 10.8 184.5 FPS
181.5 FPS
127.9 FPS
AMD Radeon RX 6900 XT 16GB $ 999 $ 5.4 183.7 FPS
175.4 FPS
114.3 FPS
AMD Radeon RX 6800 XT 16GB $ 649 $ 3.8 173 FPS
165.1 FPS
107.7 FPS
NVIDIA GeForce RTX 3080 Ti 20GB $ 799 $ 4.7 170.9 FPS
165.4 FPS
113.7 FPS
NVIDIA GeForce RTX 3080 10GB $ 699 $ 4.1 170.8 FPS
162.1 FPS
107.5 FPS
NVIDIA GeForce RTX 4070 12GB $ 599 $ 3.6 164.9 FPS
158.2 FPS
110.1 FPS
NVIDIA GeForce RTX 3070 Ti 10GB $ 599 $ 4.1 146.6 FPS
140.2 FPS
94.6 FPS
AMD Radeon RX 6800 16GB $ 579 $ 4.2 137 FPS
130.8 FPS
85.2 FPS
NVIDIA GeForce RTX 3070 8GB $ 499 $ 3.8 130.7 FPS
124.1 FPS
82.2 FPS
NVIDIA TITAN RTX 24GB $ 2,499 $ 20.8 120 FPS
117.6 FPS
78.5 FPS
NVIDIA GeForce RTX 2080 Ti 11GB $ 1,299 $ 11.1 116.8 FPS
114.5 FPS
76.4 FPS
AMD Radeon RX 6700 XT 12GB $ 479 $ 4.2 115.3 FPS
110.9 FPS
71.3 FPS
NVIDIA GeForce RTX 4060 Ti 8 GB 8GB $ 399 $ 3.5 113.4 FPS
110.2 FPS
75.3 FPS
NVIDIA GeForce RTX 3060 Ti 8GB $ 399 $ 3.7 107.1 FPS
104.3 FPS
70.5 FPS
NVIDIA GeForce RTX 2080 SUPER 8GB $ 699 $ 6.6 106 FPS
102.9 FPS
68.3 FPS
AMD Radeon RX 6650 XT 8GB $ 399 $ 3.9 102.3 FPS
98.8 FPS
64.7 FPS
NVIDIA TITAN V 12GB $ 2,999 $ 29.5 101.6 FPS
99.6 FPS
67.8 FPS
NVIDIA GeForce RTX 4060 8GB $ 299 $ 2.9 101.5 FPS
99.3 FPS
67.8 FPS
AMD Radeon RX 7600 8GB $ 269 $ 2.7 101.5 FPS
98.2 FPS
64.1 FPS
NVIDIA GeForce RTX 2080 8GB $ 699 $ 7 100.2 FPS
96.3 FPS
63.3 FPS
AMD Radeon RX 6600 XT 8GB $ 379 $ 3.9 96 FPS
92.3 FPS
60.1 FPS
NVIDIA GeForce GTX 1080 Ti 11GB $ 759 $ 8.1 93.9 FPS
91.8 FPS
60.9 FPS
NVIDIA GeForce RTX 2070 SUPER 8GB $ 499 $ 5.3 93.4 FPS
88.6 FPS
58.7 FPS
NVIDIA TITAN Xp 12GB $ 1,199 $ 13 92.1 FPS
88.6 FPS
60.1 FPS
AMD Radeon VII 16GB $ 699 $ 7.6 92.1 FPS
88 FPS
57.4 FPS
AMD Radeon RX 5700 XT 8GB $ 399 $ 4.4 89.7 FPS
85.6 FPS
55.8 FPS
NVIDIA GeForce RTX 2070 8GB $ 499 $ 5.6 88.5 FPS
82.8 FPS
55.5 FPS
NVIDIA GeForce RTX 4050 8GB $ 200 $ 2.3 88.5 FPS
85.6 FPS
58.5 FPS
NVIDIA GeForce RTX 3060 12GB $ 329 $ 3.7 87.8 FPS
83.6 FPS
56 FPS
NVIDIA GeForce RTX 2060 SUPER 8GB $ 400 $ 4.8 83.7 FPS
77.1 FPS
50.8 FPS
AMD Radeon RX 5700 8GB $ 349 $ 4.2 82.2 FPS
78.5 FPS
51.1 FPS
NVIDIA GeForce GTX 1080 8GB $ 499 $ 6.3 79.8 FPS
75.1 FPS
49 FPS
NVIDIA GeForce RTX 2060 6GB $ 350 $ 4.4 78.8 FPS
70.9 FPS
45.9 FPS
AMD Radeon RX 5600 XT 6GB $ 279 $ 3.6 77.5 FPS
73.4 FPS
47.7 FPS
AMD Radeon R9 295X2 4GB $ 1,499 $ 20 74.8 FPS
69.3 FPS
48.2 FPS
AMD Radeon RX Vega 64 8GB $ 499 $ 6.7 74.6 FPS
71.3 FPS
46.3 FPS
NVIDIA GeForce GTX 1070 Ti 8GB $ 409 $ 5.5 73.9 FPS
69.5 FPS
45.2 FPS
NVIDIA GeForce RTX 3050 Ti 6GB $ 249 $ 3.4 72.3 FPS
67.5 FPS
44.7 FPS
NVIDIA GeForce GTX TITAN X 12GB $ 999 $ 13.9 71.9 FPS
66.8 FPS
43.5 FPS
NVIDIA GeForce GTX 1660 Ti 6GB $ 279 $ 4 70.3 FPS
66.2 FPS
43 FPS
AMD Radeon RX Vega 56 8GB $ 399 $ 5.7 69.9 FPS
66.6 FPS
43.3 FPS
NVIDIA GeForce GTX 1070 8GB $ 399 $ 5.9 68.1 FPS
63.4 FPS
41 FPS
NVIDIA GeForce GTX 1660 SUPER 6GB $ 229 $ 3.5 66.3 FPS
62.4 FPS
40.7 FPS
NVIDIA GeForce GTX 980 Ti 6GB $ 649 $ 10.4 62.5 FPS
58.5 FPS
38.1 FPS
NVIDIA GeForce GTX 1660 6GB $ 220 $ 3.5 62.4 FPS
58.7 FPS
38.2 FPS
AMD Radeon RX 590 8GB $ 279 $ 4.7 59.2 FPS
54.1 FPS
34.4 FPS
AMD Radeon R9 FURY X 4GB $ 649 $ 11.4 56.8 FPS
55.6 FPS
37.2 FPS
NVIDIA GeForce GTX 1650 SUPER 4GB $ 160 $ 2.9 54.3 FPS
51 FPS
33.1 FPS
AMD Radeon RX 5500 XT 8GB 8GB $ 199 $ 3.7 53.8 FPS
49.2 FPS
31.2 FPS
NVIDIA GeForce GTX 980 4GB $ 549 $ 10.2 53.6 FPS
49.6 FPS
32.5 FPS
AMD Radeon RX 580 8GB $ 229 $ 4.4 52.5 FPS
47.9 FPS
30.3 FPS
AMD Radeon R9 Nano 4GB $ 649 $ 12.6 51.7 FPS
49.7 FPS
33 FPS
NVIDIA GeForce GTX TITAN BLACK 6GB $ 999 $ 19.9 50.1 FPS
46 FPS
31.4 FPS
AMD Radeon R9 FURY 4GB $ 549 $ 11.3 48.8 FPS
46.8 FPS
30.7 FPS
NVIDIA GeForce GTX 1060 6GB 6GB $ 254 $ 5.2 48.7 FPS
44.8 FPS
29.2 FPS
AMD Radeon RX 5500 XT 4GB 4GB $ 169 $ 3.5 48.3 FPS
44.2 FPS
28 FPS
AMD Radeon R9 390X 8GB $ 429 $ 9.1 47 FPS
44.9 FPS
29.6 FPS
NVIDIA GeForce GTX 1060 3GB 3GB $ 170 $ 3.7 46.2 FPS
42.6 FPS
27.8 FPS
NVIDIA GeForce GTX 970 4GB $ 329 $ 7.2 45.4 FPS
41.4 FPS
28.1 FPS
AMD Radeon RX 480 8GB $ 400 $ 9 44.2 FPS
41.8 FPS
27.9 FPS
AMD Radeon R9 390 8GB $ 329 $ 7.5 43.9 FPS
41 FPS
25.5 FPS
AMD Radeon RX 570 4GB $ 169 $ 3.9 43.3 FPS
40.4 FPS
25.8 FPS
NVIDIA GeForce GTX 1650 4GB $ 149 $ 3.6 41.4 FPS
38.6 FPS
25 FPS
AMD Radeon RX 470 4GB $ 179 $ 4.6 38.7 FPS
36.3 FPS
23.5 FPS
AMD Radeon R9 380X 4GB $ 229 $ 7 32.5 FPS
30.2 FPS
20 FPS
AMD Radeon R9 285 2GB $ 249 $ 8.5 29.2 FPS
27.2 FPS
17 FPS
AMD Radeon R9 380 2GB $ 199 $ 6.9 29 FPS
26.9 FPS
17 FPS
NVIDIA GeForce GTX 1050 Ti 4GB $ 169 $ 5.9 28.5 FPS
26.6 FPS
17.3 FPS
AMD Radeon R9 280 3GB $ 279 $ 9.9 28.3 FPS
26.5 FPS
16.3 FPS
NVIDIA GeForce GTX 960 2GB $ 199 $ 7.1 27.9 FPS
25.8 FPS
16.6 FPS
NVIDIA GeForce GTX 1050 3GB $ 169 $ 7 24.3 FPS
22.4 FPS
14.3 FPS
AMD Radeon RX 560 4GB $ 99 $ 4.4 22.5 FPS
20.5 FPS
13.1 FPS
NVIDIA GeForce GTX 950 2GB $ 159 $ 7.2 22 FPS
20.1 FPS
13.3 FPS
AMD Radeon R7 370 2GB $ 149 $ 6.9 21.6 FPS
18.9 FPS
12.6 FPS
AMD Radeon R7 265 2GB $ 149 $ 6.9 21.5 FPS
18.3 FPS
12.2 FPS
AMD Radeon RX 460 4GB $ 140 $ 7 19.9 FPS
18.2 FPS
11.7 FPS
NVIDIA GeForce GTX 750 Ti 2GB $ 149 $ 7.8 19.2 FPS
15.6 FPS
10.5 FPS
AMD Radeon RX 550 2GB $ 79 $ 5 15.7 FPS
14.5 FPS
9.2 FPS
NVIDIA GeForce GT 1030 2GB $ 79 $ 5.3 15 FPS
13.7 FPS
8.5 FPS
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