Intel Core i5-8400 vs Intel Core i5-8500 vs Intel Core i5-9600K

Intel Core i5-8400

► remove Intel 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 i5-8500

► remove Intel 8500

The Intel Core i5-8500 is a mid-range 6-core CPU. The processor belongs to the Coffee Lake generation and was presented in April 2018. It does not support Hyper-Threading, which means it can run six threads simultaneously. The base clock rate is 3 GHz and the CPU can speed up to 4.1 GHz under high load. Despite belonging to the new generation of CPUs, the Core i5-8500 is manufactured in an improved 14nm process.

Performance

The processor offers a strong performance increase compared to the Core i5-7500 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 i5-8500 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 50-100 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 i5-9600K

► remove

The Intel Core i5-9600K is a high end desktop processor based on the Coffee Lake architecture. It offers an open multiplicator for easy overclocking and integrates 6 cores (no Hyperthreading therefore also 6 threads) clocked at 3.7 - 4.6 GHz and it needs a new Z390 based mainboard. It is manufactured in the second iteration of the improved 14nm process (14nm++).

Compared to the older Core i5-8600K, the 9600K offers about 10 to 15% higher performance. As the CPU still offers 6 cores and threads, the improvements are mostly due to the higher clock speeds. As a fast mid range desktop CPU, the i5-9600K is suited even for very demanding applications and perfect for 3D gaming.

The integrated Intel UHD Graphics 630 graphics card is clocked at up to 1.15 GHz and offers no advantage compared to previous generations. As it is a very low end GPU, only some low demanding games like Hearthstone can be played with it (see GPU page for benchmarks).

Intel specifies the TDP at 95 Watt, so if the CPU is used in laptops a big and chunky cooling system is needed to avoid throttling and lower clock speeds under sustained loads. When overclocking the CPU, the power consumption can easily rise up to 150 Watt and higher.

Intel Core i5-8400Intel Core i5-8500Intel Core i5-9600K
Intel Core i5 (Desktop)Intel Core i5 (Desktop)Intel Core i5 (Desktop)
Coffee Lake-SCoffee Lake-SCoffee Lake-S
: Core i5 (Desktop) Coffee Lake-S
Intel Core i5-9600K3700 - 4600 MHz6 / 69 MB
Intel Core i5-8600K3600 - 4300 MHz6 / 69 MB
Intel Core i5-85003000 - 4100 MHz6 / 69 MB
» Intel Core i5-84002800 - 4000 MHz6 / 69 MB
Intel Core i5-8500T2100 - 3500 MHz6 / 69 MB
Intel Core i5-9600K3700 - 4600 MHz6 / 69 MB
Intel Core i5-8600K3600 - 4300 MHz6 / 69 MB
» Intel Core i5-85003000 - 4100 MHz6 / 69 MB
Intel Core i5-84002800 - 4000 MHz6 / 69 MB
Intel Core i5-8500T2100 - 3500 MHz6 / 69 MB
» Intel Core i5-9600K3700 - 4600 MHz6 / 69 MB
Intel Core i5-8600K3600 - 4300 MHz6 / 69 MB
Intel Core i5-85003000 - 4100 MHz6 / 69 MB
Intel Core i5-84002800 - 4000 MHz6 / 69 MB
Intel Core i5-8500T2100 - 3500 MHz6 / 69 MB
2800 - 4000 MHz3000 - 4100 MHz3700 - 4600 MHz
384 KB384 KB512 KB
1.5 MB1.5 MB1.5 MB
9 MB9 MB9 MB
6 / 66 / 66 / 6
65 65 95
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, HyperThreading, AVX, AVX2, AES-NI, TSX-NI, Quick Sync, Virtualization, vPro
iGPUIntel UHD Graphics 630 (350 - 1050 MHz)Intel UHD Graphics 630 (350 - 1100 MHz)Intel UHD Graphics 630 (350 - 1150 MHz)
Intel Core i5 (Desktop) 8400Intel Core i5 (Desktop) 8500Intel Core i5 (Desktop) 9600K
100 °C100 °C
$202 U.S.$262 U.S.
178 mm2

Cinebench R15 - CPU Multi 64Bit
100%
8400 +
min: 939     avg: 943     median: 941 (22%)     max: 949 Points
101%
8500 +
950 Points (22%)
1094 Points (25%)
Cinebench R15 - CPU Single 64Bit
100%
8400 +
min: 167     avg: 169.5     median: 169 (78%)     max: 172 Points
102%
8500 +
172 Points (79%)
193 Points (89%)
Cinebench R11.5 - CPU Multi 64Bit
100%
8400 +
11 Points (25%)
100%
8500 +
10.2 Points (23%)
11 Points (25%)
Cinebench R11.5 - CPU Single 64Bit
100%
8400 +
1.9 Points (95%)
100%
8500 +
2 Points (98%)
2.2 Points (112%)
Cinebench R10 - Rendering Single 32Bit
100%
8400 +
min: 6356     avg: 6363.5     median: 6363 (70%)     max: 6371 Points
135%
8500 +
8606 Points (94%)
7205 Points (79%)
Cinebench R10 - Rendering Multiple CPUs 32Bit
100%
8400 +
min: 30658     avg: 30789.5     median: 30789 (47%)     max: 30921 Points
133%
8500 +
40829 Points (62%)
33950 Points (52%)
Cinebench R10 - Rendering Multiple CPUs 64Bit
100%
8500 +
39357 Points (52%)
39494 Points (52%)
Cinebench R10 - Rendering Single CPUs 64Bit
100%
8500 +
8515 Points (82%)
9318 Points (90%)
wPrime 2.0x - 1024m *
100%
8400 +
191.8 seconds (2%)
847.9 seconds (10%)
176.2 seconds (2%)
wPrime 2.0x - 32m *
100%
8400 +
6.2 seconds (1%)
26.5 seconds (5%)
6 seconds (1%)
WinRAR - Result
100%
8400 +
5173 KB/s (61%)
4219 KB/s (50%)
5903 KB/s (69%)
7-Zip 18.03 - 7z b 4
100%
8500 +
23200 MIPS (22%)
7-Zip 18.03 - 7z b 4 -mmt1
100%
8500 +
4513 MIPS (65%)
X264 HD Benchmark 4.0 - Pass 2
100%
8400 +
61.4 fps (2%)
6490%
8500 +
3959.1 fps (100%)
68.8 fps (2%)
X264 HD Benchmark 4.0 - Pass 1
100%
8400 +
223.8 fps (83%)
206.5 fps (76%)
250 fps (93%)
HWBOT x265 Benchmark v2.2 - 4k Preset
100%
8500 +
7.9 fps (26%)
8 fps (27%)
TrueCrypt - Serpent Mean 100MB
0.5 GB/s (25%)
0.5 GB/s (26%)
0.4 GB/s (22%)
TrueCrypt - Twofish Mean 100MB
0.8 GB/s (28%)
0.9 GB/s (29%)
0.6 GB/s (21%)
TrueCrypt - AES Mean 100MB
100%
8400 +
5 GB/s (25%)
100%
8500 +
5 GB/s (25%)
5.6 GB/s (28%)
Blender 2.79 *
100%
8400 +
488 Seconds (5%)
100%
8500 +
494.8 Seconds (5%)
444.4 Seconds (5%)
3DMark 06 - CPU
100%
8400 +
9474 Points (63%)
105%
8500 +
9903 Points (66%)
10974 Points (73%)
Super Pi mod 1.5 XS 1M *
100%
8400 +
9.5 Seconds (2%)
100%
8500 +
9.2 Seconds (2%)
7.7 Seconds (2%)
Super Pi mod 1.5 XS 2M *
100%
8400 +
21.6 Seconds (1%)
100%
8500 +
20.8 Seconds (1%)
17.4 Seconds (1%)
Super Pi Mod 1.5 XS 32M *
100%
8400 +
526 Seconds (2%)
100%
8500 +
540.8 Seconds (2%)
421.1 Seconds (2%)
3DMark Vantage - P CPU no PhysX 1280x1024
100%
8400 +
35310 Points (49%)
37593 Points (53%)
3DMark 11 - Performance Physics 1280x720
100%
8400 +
min: 9057     avg: 9453     median: 9453 (49%)     max: 9849 points
7942 points (41%)
11938 points (61%)
3DMark - Ice Storm Standard Physics 1280x720
78929 Points (51%)
3DMark - Ice Storm Extreme Physics 1920x1080
100%
8400 +
65891 Points (78%)
78531 Points (94%)
3DMark - Ice Storm Unlimited Physics 1280x720 offscreen
100%
8400 +
69971 Points (81%)
80235 Points (93%)
3DMark - Cloud Gate Standard Physics 1280x720
100%
8400 +
7891 Points (20%)
7782 Points (20%)
9031 Points (23%)
3DMark - Fire Strike Physics 1920x1080
100%
8400 +
min: 10911     avg: 11774.3     median: 12066 (37%)     max: 12346 Points
11691 Points (36%)
13701 Points (42%)
Geekbench 3 - 64 Bit Multi-Core Score
100%
8400 +
19334 Points (51%)
Geekbench 3 - 64 Bit Single-Core Score
100%
8400 +
4283 Points (87%)
Geekbench 4.0 - Compute OpenCL Score
100%
8400 +
207800 Points (72%)
31751 Points (11%)
Geekbench 4.0 - 64 Bit Multi-Core Score
100%
8400 +
19500 Points (65%)
18025 Points (60%)
Geekbench 4.0 - 64 Bit Single-Core Score
100%
8400 +
4996 Points (83%)
4782 Points (80%)
Geekbench 4.4 - 64 Bit Single-Core Score
100%
8400 +
5104 Points (81%)
Geekbench 4.4 - 64 Bit Multi-Core Score
100%
8400 +
20500 Points (36%)
Power Consumption - Prime95 V28,10 Stress Power Consumption (external Monitor) ultra *
100%
1 8400 +
115 Watt (25%)
91%
1 9600K +
145.9 Watt (31%)
Power Consumption - Cinebench R15 Multi Power Consumption (external Monitor) ultra *
100%
1 8400 +
97 Watt (17%)
92%
1 9600K +
134 Watt (24%)

Average Benchmarks Intel Core i5-8400 → 100%

Average Benchmarks Intel Core i5-8500 → 325%

Average Benchmarks Intel Core i5-9600K → 112%

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* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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