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Intel Core i5-8400 vs Intel Core i7-8086K

Intel Core i5-8400

► remove from comparison Intel i5-8400

The Intel Core i5-8400 is a mid-range 6-core CPU. The processor belongs to the Coffee Lake generation and was presented in September 2017. It does not support Hyper-Threading, which means it can run six threads simultaneously. The base clock rate is 2.8 GHz and the CPU can speed up to 4.0 GHz under high load. Despite belonging to the new generation of CPUs, the Core i5-8400 is manufactured in an improved 14nm process.

Performance

The processor offers a strong performance increase compared to the Core i5-7400 due to its two additional cores. Single-core performance has not improved significantly compared to its Kaby Lake predecessor. As a mid-range model, the Core i5-8400 should be suitable for demanding games and programs.

Graphics

The integrated Intel UHD Graphics 630 iGPU is supposed to offer higher performance as its clock rate has been increased by 50 MHz. The build is identical to that of the Intel HD Graphics 630. We do expect a performance improvement, but as a low-end solution it will probably only display current games smoothly at reduced details - if at all.

Power Consumption

Intel specifies the TDP with 65 watts. Therefore, well-dimensioned cooling systems should easily manage to deal with the created heat. We expect increased efficiency due to the higher performance.

Intel Core i7-8086K

► remove from comparison Intel i7-8086K

The Intel Core i7-8086K is a high-end desktop processor with six cores based on the Coffee Lake architecture and was announced in mid 2018. It is a limited edition for the 40 year X86 anniversary and at the time of announcement the fastest Coffee-Lake CPU. The processor clocks at between 3.7 and 5 GHz and can execute up to twelve threads simultaneously thanks to Hyper-Threading. According to Intel, the CPU is manufactured in an improved 14nm (14nm++) process. The i7-8086K is comparatively easy to overclock thanks to the unlocked multiplier. Compared to the cheaper i7-8700K (-66 Dollars) only the single core Turbo clock speed is faster (5 GHz versus 4.7 GHz).

Performance

Due to the two additional cores, performance has increased by almost 50% compared to the Core i7-7700K when all cores are in use. Compared to the cheaper Core i7-8700K, the 8086K offers only a higher single core Turbo Boost and therefore in daily usage and gaming not faster. As a high-end model, the i7-8086K is suitable for the most demanding applications and games.

Graphics

The integrated Intel UHD Graphics 630 iGPU is supposed to offer higher performance as its clock rate has been increased by 50 MHz. The build is identical to that of the Intel HD Graphics 630. We do expect a performance improvement, but as a low-end solution it will probably only display current games smoothly at reduced details - if at all.

Power Consumption

Intel specifies the TDP with 95 watts. Therefore, well-dimensioned cooling systems should easily manage to deal with the created heat. We expect increased efficiency due to the higher performance.

ModelIntel Core i5-8400Intel Core i7-8086K
SeriesIntel Coffee LakeIntel Coffee Lake
CodenameCoffee Lake-SCoffee Lake-S
Series: Coffee Lake Coffee Lake-S
Intel Core i7-8086K3.7 - 5 GHz6 / 1212 MB
Intel Core i7-8700K compare3.7 - 4.7 GHz6 / 1212 MB
Intel Core i7-8700 compare3.2 - 4.6 GHz6 / 1212 MB
Intel Core i5-8600K compare3.6 - 4.3 GHz6 / 69 MB
Intel Core i5-8500 compare3 - 4.1 GHz6 / 69 MB
» Intel Core i5-84002.8 - 4 GHz6 / 69 MB
Intel Core i5-8500T compare2.1 - 3.5 GHz6 / 69 MB
» Intel Core i7-8086K3.7 - 5 GHz6 / 1212 MB
Intel Core i7-8700K compare3.7 - 4.7 GHz6 / 1212 MB
Intel Core i7-8700 compare3.2 - 4.6 GHz6 / 1212 MB
Intel Core i5-8600K compare3.6 - 4.3 GHz6 / 69 MB
Intel Core i5-8500 compare3 - 4.1 GHz6 / 69 MB
Intel Core i5-84002.8 - 4 GHz6 / 69 MB
Intel Core i5-8500T compare2.1 - 3.5 GHz6 / 69 MB
Clock2800 - 4000 MHz3700 - 5000 MHz
L1 Cache384 KB384 KB
L2 Cache1.5 MB1.5 MB
L3 Cache9 MB12 MB
Cores / Threads6 / 66 / 12
TDP65 Watt95 Watt
Technology14 nm14 nm
SocketFCLGA1151FCLGA1151
FeaturesDual-Channel DDR3(L)-1600/DDR4-2666 Memory Controller, HyperThreading, AVX, AVX2, AES-NI, TSX-NI, Quick Sync, Virtualization, vProDual-Channel DDR3(L)-1600/DDR4-2666 Memory Controller, HyperThreading, AVX, AVX2, AES-NI, TSX-NI, Quick Sync, Virtualization, vPro
iGPUIntel UHD Graphics 630 (350 - 1050 MHz)Intel UHD Graphics 630 (350 - 1200 MHz)
Architecturex86x86
Announced
ManufacturerIntel Coffee Lake i5-8400Intel Coffee Lake i7-8086K
max. Temp.100 °C
$425 U.S.

Benchmarks

Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU - i7-8086K
47.8 pt (56%)
Cinebench R23 - Cinebench R23 Multi Core
8686 Points (14%)
Cinebench R23 - Cinebench R23 Single Core
1260 Points (63%)
Cinebench R20 - Cinebench R20 CPU (Single Core)
min: 488     avg: 495     median: 495 (64%)     max: 502 Points
Cinebench R20 - Cinebench R20 CPU (Multi Core)
min: 2998     avg: 3111     median: 3111 (13%)     max: 3224 Points
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 939     avg: 943     median: 941 (10%)     max: 949 Points
050100150200250300350400450500550600650700750800850900Tooltip
min: 1340     avg: 1366     median: 1349 (14%)     max: 1408 Points
07515022530037545052560067575082590097510501125120012751350Tooltip
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
min: 167     avg: 169.5     median: 169.5 (58%)     max: 172 Points
min: 202     avg: 205     median: 206 (71%)     max: 207 Points
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
11 Points (20%)
min: 14.67     avg: 15     median: 15 (28%)     max: 15.41 Points
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
1.9 Points (54%)
min: 2.2     avg: 2.3     median: 2.3 (65%)     max: 2.35 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 6356     avg: 6364     median: 6363.5 (57%)     max: 6371 Points
min: 6541     avg: 7216     median: 7216 (64%)     max: 7891 Points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 30658     avg: 30790     median: 30789.5 (42%)     max: 30921 Points
min: 33064     avg: 35896     median: 35896 (49%)     max: 38728 Points
wPrime 2.10 - wPrime 2.0 1024m *
191.8 s (2%)
min: 119.7     avg: 119.8     median: 119.8 (1%)     max: 119.9 s
wPrime 2.10 - wPrime 2.0 32m *
6.2 s (1%)
min: 4.041     avg: 4.1     median: 4.1 (1%)     max: 4.21 s
WinRAR - WinRAR 4.0
5173 Points (30%)
min: 6637     avg: 6752     median: 6751.5 (39%)     max: 6866 Points
7-Zip 18.03 - 7-Zip 18.03 Multli Thread 4 runs
min: 35473     avg: 36060     median: 36059.5 (26%)     max: 36646 MIPS
7-Zip 18.03 - 7-Zip 18.03 Single Thread 4 runs
min: 5325     avg: 5417     median: 5416.5 (78%)     max: 5508 MIPS
X264 HD Benchmark 4.0 - x264 Pass 2
61.4 fps (28%)
min: 85.1     avg: 85.5     median: 85.5 (39%)     max: 85.8 fps
X264 HD Benchmark 4.0 - x264 Pass 1
223.8 fps (61%)
min: 227.5     avg: 230.6     median: 230.6 (63%)     max: 233.6 fps
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
min: 11.2     avg: 11.3     median: 11.3 (24%)     max: 11.4 fps
0123456789101112131415161718Tooltip
TrueCrypt - TrueCrypt Serpent
0.5 GB/s (17%)
min: 0.792     avg: 0.8     median: 0.8 (27%)     max: 0.795 GB/s
TrueCrypt - TrueCrypt Twofish
0.8 GB/s (17%)
1.4 GB/s (29%)
TrueCrypt - TrueCrypt AES
5 GB/s (19%)
min: 7.8     avg: 7.9     median: 7.9 (29%)     max: 7.9 GB/s
Blender - Blender 2.79 BMW27 CPU *
488 Seconds (3%)
min: 315     avg: 383.7     median: 316 (2%)     max: 520 Seconds
R Benchmark 2.5 - R Benchmark 2.5 *
min: 0.567     avg: 0.6     median: 0.6 (13%)     max: 0.5974 sec
3DMark 06 - CPU - 3DMark 06 - CPU
9474 Points (20%)
min: 10397     avg: 11218     median: 11218 (24%)     max: 12039 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
9.5 s (2%)
min: 7.74     avg: 8.5     median: 8.5 (2%)     max: 9.261 s
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
21.6 s (1%)
min: 17.06     avg: 18.8     median: 18.8 (1%)     max: 20.59 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
526 s (2%)
min: 429.9     avg: 467     median: 467 (2%)     max: 504 s
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
100%
1 i5-8400 +
35310 Points (36%)
3DMark 11 - 3DM11 Performance Physics
min: 9057     avg: 9453     median: 9453 (33%)     max: 9849 Points
min: 11434     avg: 12861     median: 11554 (40%)     max: 15596 Points
3DMark - 3DMark Ice Storm Extreme Physics
100%
1 i5-8400 +
65891 Points (55%)
3DMark - 3DMark Ice Storm Unlimited Physics
100%
1 i5-8400 +
69971 Points (59%)
3DMark - 3DMark Cloud Gate Physics
100%
1 i5-8400 +
7891 Points (20%)
3DMark - 3DMark Fire Strike Standard Physics
100%
1 i5-8400 +
min: 10911     avg: 11774     median: 12066 (30%)     max: 12346 Points
3DMark - 3DMark Time Spy CPU
min: 4372     avg: 4941     median: 4940.5 (26%)     max: 5509 Points
6745 Points (36%)
Geekbench 3 - Geekbench 3 64 Bit Multi-Core
100%
1 i5-8400 +
19334 Points (30%)
Geekbench 3 - Geekbench 3 64 Bit Single-Core
100%
1 i5-8400 +
4283 Points (87%)
Geekbench 4.0 - Geekbench 4.0 64 Bit Single-Core
100%
1 i5-8400 +
4996 Points (77%)
Geekbench 4.0 - Geekbench 4.0 64 Bit Multi-Core
100%
1 i5-8400 +
19500 Points (47%)
Geekbench 4.1 - 4.4 - Geekbench 4.1 - 4.4 64 Bit Single-Core
5104 Points (59%)
min: 5768     avg: 5821     median: 5792 (67%)     max: 5904 Points
Geekbench 4.1 - 4.4 - Geekbench 4.1 - 4.4 64 Bit Multi-Core
20500 Points (25%)
min: 22817     avg: 24618     median: 24527 (30%)     max: 26509 Points
Geekbench 5.0 - Geekbench 5.0 64 Bit Single-Core
min: 1234     avg: 1276     median: 1276 (65%)     max: 1318 Points
Geekbench 5.0 - Geekbench 5.0 64 Bit Multi-Core
min: 5618     avg: 5644     median: 5644 (18%)     max: 5670 Points
Geekbench 5.3 - Geekbench 5.1 - 5.4 64 Bit Single-Core
1240 Points (61%)
Geekbench 5.3 - Geekbench 5.1 - 5.4 64 Bit Multi-Core
5485 Points (19%)
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
min: 861     avg: 862     median: 862 (1%)     max: 863 ms
WebXPRT 3 - WebXPRT 3 Score
min: 216     avg: 217     median: 217 (59%)     max: 218 Points
Power Consumption - Prime95 Power Consumption - external Monitor *
100%
1 i5-8400 +
115 Watt (20%)
Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
100%
1 i5-8400 +
97 Watt (26%)
Power Consumption - Cinebench R15 Multi Power Efficiency - external Monitor
100%
1 i5-8400 +
9.7 Points per Watt (11%)

Average Benchmarks Intel Core i5-8400 → 100% n=23

Average Benchmarks Intel Core i7-8086K → 123% n=23

- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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show all (including archived), 2022, 2021
v1.17
log 25. 19:05:54

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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Processor Comparison - Head 2 Head
Redaktion, 2017-09- 8 (Update: 2017-09-11)