Intel Core i5-8600K vs Intel Core i5-8400 vs Intel Core i5-8500T

Intel Core i5-8600K

► remove from comparison Intel i5-8600K

The Intel Core i5-8600K is a high-end desktop processor with six cores based on the Coffee Lake architecture and was announced in September 2017. The processor clocks at between 3.6 and 4.3 GHz and can execute up to six threads simultaneously (no HyperThreading). According to Intel, the CPU is manufactured in an improved 14nm (14nm++) process. The i5-8600K is comparatively easy to overclock thanks to the unlocked multiplier.

Performance

Due to the two additional cores, performance has increased significantly compared to the Core i7-7700K when all cores are in use. Single-core performance has not improved since its Kaby Lake predecessor. As a high-end model, the i5-8600K is suitable for the most demanding applications and games.

Graphics

The integrated Intel UHD Graphics 630 iGPU is basically identical to the previous generation Intel HD Graphics 630. Only some low demanding games are playable with this graphics card (see GPU page linked above).

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.

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 i5-8500T

► remove from comparison

The Intel Core i5-8500T is a desktop processor of the Coffee Lake generation. It offers 6 cores clocked at 2.1 - 3.5 GHz and is manufactured in the again improved 14nm process (14nm++). As a "T" model, te i5-8500T is rated with a low 35 Watt TDP and therefore sometimes even used in laptops.

Thanks to the additional 2 cores, the Coffee Lake 6-core CPUs can offer a performance uplift of up to 50% in multithreaded workloads compared to the Kaby Lake predecessors. 

Intel Core i5-8600KIntel Core i5-8400Intel Core i5-8500T
Intel Coffee LakeIntel Coffee LakeIntel Coffee Lake
Coffee Lake-SCoffee Lake-SCoffee Lake-S
Series: Coffee Lake Coffee Lake-S
Intel Core i7-8086K3.7 - 5 GHz6 / 1212 MB
Intel Core i7-8700K3.7 - 4.7 GHz6 / 1212 MB
Intel Core i7-87003.2 - 4.6 GHz6 / 1212 MB
» Intel Core i5-8600K3.6 - 4.3 GHz6 / 69 MB
Intel Core i5-85003 - 4.1 GHz6 / 69 MB
Intel Core i5-84002.8 - 4 GHz6 / 69 MB
Intel Core i5-8500T2.1 - 3.5 GHz6 / 69 MB
Intel Core i7-8086K3.7 - 5 GHz6 / 1212 MB
Intel Core i7-8700K3.7 - 4.7 GHz6 / 1212 MB
Intel Core i7-87003.2 - 4.6 GHz6 / 1212 MB
Intel Core i5-8600K3.6 - 4.3 GHz6 / 69 MB
Intel Core i5-85003 - 4.1 GHz6 / 69 MB
» Intel Core i5-84002.8 - 4 GHz6 / 69 MB
Intel Core i5-8500T2.1 - 3.5 GHz6 / 69 MB
Intel Core i7-8086K3.7 - 5 GHz6 / 1212 MB
Intel Core i7-8700K3.7 - 4.7 GHz6 / 1212 MB
Intel Core i7-87003.2 - 4.6 GHz6 / 1212 MB
Intel Core i5-8600K3.6 - 4.3 GHz6 / 69 MB
Intel Core i5-85003 - 4.1 GHz6 / 69 MB
Intel Core i5-84002.8 - 4 GHz6 / 69 MB
» Intel Core i5-8500T2.1 - 3.5 GHz6 / 69 MB
3600 - 4300 MHz2800 - 4000 MHz2100 - 3500 MHz
384 KB384 KB384 KB
1.5 MB1.5 MB1.5 MB
9 MB9 MB9 MB
6 / 66 / 66 / 6
95 65 35
14 14 14++
FCLGA1151FCLGA1151FCLGA1151
Dual-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, vProDual-Channel DDR4-2666 Memory Controller, AVX, AVX2, AES-NI, TSX-NI, Quick Sync, Virtualization, vPro
iGPUIntel UHD Graphics 630 (350 - 1150 MHz)Intel UHD Graphics 630 (350 - 1050 MHz)Intel UHD Graphics 630 (350 - 1100 MHz)
Architecturex86x86x86
Intel Coffee Lake i5-8600KIntel Coffee Lake i5-8400Intel Coffee Lake i5-8500T

Benchmarks

Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 988     avg: 990     median: 989.5 (22%)     max: 991 Points
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min: 939     avg: 943     median: 941 (21%)     max: 949 Points
0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350360370380390400410420430440450460470480490500510520530540550560570580590600610620630640650660670680690700710720730740750760770780790800810820830840850860870880890900910920930940950Tooltip
843 Points (19%)
0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350360370380390400410420430440450460470480490500510520530540550560570580590600610620630640650660670680690700710720730740750760770Tooltip
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
181 Points (67%)
min: 167     avg: 170     median: 169.5 (62%)     max: 172 Points
145 Points (53%)
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
10.8 Points (22%)
11 Points (22%)
8.6 Points (17%)
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
2.1 Points (66%)
1.9 Points (61%)
1.7 Points (53%)
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
6875 (61%)
min: 6356     avg: 6364     median: 6363.5 (57%)     max: 6371
5493 (49%)
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
32863 (55%)
min: 30658     avg: 30790     median: 30789.5 (52%)     max: 30921
25971 (44%)
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
30617 Points (29%)
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
7199 Points (54%)
wPrime 2.10 - wPrime 2.0 1024m *
189 s (2%)
192 s (2%)
235 s (3%)
wPrime 2.10 - wPrime 2.0 32m *
5.7 s (1%)
6.2 s (1%)
8 s (2%)
WinRAR - WinRAR 4.0
4583 (29%)
5173 (33%)
4331 (28%)
X264 HD Benchmark 4.0 - x264 Pass 2
min: 61     avg: 63.4     median: 63.4 (29%)     max: 65.7 fps
61.4 fps (28%)
51.8 fps (23%)
X264 HD Benchmark 4.0 - x264 Pass 1
min: 230.3     avg: 233     median: 232.7 (69%)     max: 235 fps
224 fps (66%)
196 fps (58%)
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
6.3 fps (20%)
TrueCrypt - TrueCrypt Serpent
0.5 GB/s (22%)
0.5 GB/s (21%)
0.4 GB/s (15%)
TrueCrypt - TrueCrypt Twofish
0.9 GB/s (24%)
0.8 GB/s (22%)
0.6 GB/s (17%)
TrueCrypt - TrueCrypt AES
5.4 GB/s (20%)
5 GB/s (19%)
3.4 GB/s (13%)
Blender 2.79 - Blender 2.79 BMW27 CPU *
100%
1 i5-8400 +
488 Seconds (3%)
561 Seconds (4%)
3DMark 06 - CPU - 3DMark 06 - CPU
9078 Points (50%)
9474 Points (52%)
8062 Points (45%)
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
min: 8.72     avg: 8.8     median: 8.8 (2%)     max: 8.8 s
9.5 s (2%)
10.7 s (2%)
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
min: 19.674     avg: 19.7     median: 19.7 (1%)     max: 19.8 s
21.6 s (1%)
24 s (1%)
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
min: 488.9     avg: 496     median: 496.4 (2%)     max: 503.9 s
526 s (2%)
567 s (3%)
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
100%
1 i5-8400 +
35310 Points (41%)
25448 Points (29%)
3DMark 11 - 3DM11 Performance Physics
min: 10708     avg: 10833     median: 10833 (45%)     max: 10958 Points
min: 9057     avg: 9453     median: 9453 (39%)     max: 9849 Points
8816 Points (36%)
3DMark - 3DMark Ice Storm Physics
74934 Points (48%)
59535 Points (38%)
3DMark - 3DMark Ice Storm Extreme Physics
74763 Points (79%)
65891 Points (70%)
59859 Points (64%)
3DMark - 3DMark Ice Storm Unlimited Physics
100%
1 i5-8400 +
69971 Points (72%)
61363 Points (63%)
3DMark - 3DMark Cloud Gate Physics
min: 8492     avg: 8523     median: 8522.5 (22%)     max: 8553 Points
7891 Points (20%)
6928 Points (18%)
3DMark - 3DMark Fire Strike Standard Physics
min: 12916     avg: 13019     median: 13018.5 (33%)     max: 13121 Points
min: 10911     avg: 11774     median: 12066 (30%)     max: 12346 Points
10393 Points (26%)
3DMark - 3DMark Time Spy CPU
100%
1 i5-8400 +
min: 4372     avg: 4941     median: 4940.5 (34%)     max: 5509 Points
4801 Points (34%)
Geekbench 3 - Geekbench 3 32 Bit Multi-Core
18970 (34%)
Geekbench 3 - Geekbench 3 32 Bit Single-Core
4217 (87%)
Geekbench 3 - Geekbench 3 64 Bit Multi-Core
19770 (31%)
19334 (30%)
Geekbench 3 - Geekbench 3 64 Bit Single-Core
4417 (90%)
4283 (87%)
Geekbench 4.0 - Geekbench 4.0 64 Bit Single-Core
100%
1 i5-8400 +
4996 (77%)
Geekbench 4.0 - Geekbench 4.0 64 Bit Multi-Core
100%
1 i5-8400 +
19500 (47%)
Geekbench 4.1 - 4.4 - Geekbench 4.1 - 4.4 64 Bit Single-Core
100%
1 i5-8400 +
5104 (70%)
4626 (63%)
Geekbench 4.1 - 4.4 - Geekbench 4.1 - 4.4 64 Bit Multi-Core
100%
1 i5-8400 +
20500 (32%)
18335 (29%)
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
1022 ms (2%)
Sunspider - Sunspider 1.0 Total Score *
68.1 ms (1%)
Power Consumption - Prime95 Power Consumption - external Monitor *
100%
1 i5-8400 +
115 Watt (31%)
133 Watt (36%)
Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
100%
1 i5-8400 +
97 Watt (26%)
108 Watt (29%)

Average Benchmarks Intel Core i5-8600K → 100% n=22

Average Benchmarks Intel Core i5-8400 → 96% n=22

Average Benchmarks Intel Core i5-8500T → 84% n=22

- 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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Redaktion, 2017-09- 8 (Update: 2017-09-11)