Intel Core i5-8600K vs Intel Core i5-9600K

Intel Core i5-8600K

► remove Intel 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 i5-9600K

► 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 i5-8600KIntel Core i5-9600K
Intel Core i5 (Desktop)Intel Core i5 (Desktop)
Coffee 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 i5-8500 (compare)3000 - 4100 MHz6 / 69 MB
Intel Core i5-8400 (compare)2800 - 4000 MHz6 / 69 MB
Intel Core i5-8500T (compare)2100 - 3500 MHz6 / 69 MB
» Intel Core i5-9600K3700 - 4600 MHz6 / 69 MB
Intel Core i5-8600K3600 - 4300 MHz6 / 69 MB
Intel Core i5-8500 (compare)3000 - 4100 MHz6 / 69 MB
Intel Core i5-8400 (compare)2800 - 4000 MHz6 / 69 MB
Intel Core i5-8500T (compare)2100 - 3500 MHz6 / 69 MB
3600 - 4300 MHz3700 - 4600 MHz
384 KB512 KB
1.5 MB1.5 MB
9 MB9 MB
6 / 66 / 6
95 95
14 14++
FCLGA1151FCLGA1151
Dual-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 - 1150 MHz)Intel UHD Graphics 630 (350 - 1150 MHz)
Intel Core i5 (Desktop) 8600KIntel Core i5 (Desktop) 9600K
178 mm2
100 °C
$262 U.S.

Cinebench R15 - CPU Multi 64Bit
min: 988     avg: 990     median: 989.5 (23%)     max: 991 Points
01020304050607080901001101201301401501601701801902002102202302402502602702802903003103203303403503603703803904004104204304404504604704804905005105205305405505605705805906006106206306406506606706806907007107207307407507607707807908008108208308408508608708808909009109209309409509609709809901000Tooltip
1094 Points (25%)
010203040506070809010011012013014015016017018019020021022023024025026027028029030031032033034035036037038039040041042043044045046047048049050051052053054055056057058059060061062063064065066067068069070071072073074075076077078079080081082083084085086087088089090091092093094095096097098099010001010Tooltip
Cinebench R15 - CPU Single 64Bit
181 Points (83%)
193 Points (89%)
Cinebench R11.5 - CPU Multi 64Bit
10.8 Points (28%)
11 Points (29%)
Cinebench R11.5 - CPU Single 64Bit
2.1 Points (84%)
2.2 Points (91%)
Cinebench R10 - Rendering Single 32Bit
6875 Points (71%)
7205 Points (74%)
Cinebench R10 - Rendering Multiple CPUs 32Bit
32863 Points (55%)
33950 Points (57%)
Cinebench R10 - Rendering Multiple CPUs 64Bit
39494 Points (52%)
Cinebench R10 - Rendering Single CPUs 64Bit
9318 Points (87%)
wPrime 2.0x - 1024m *
189 seconds (2%)
176 seconds (2%)
wPrime 2.0x - 32m *
5.7 seconds (1%)
6 seconds (1%)
WinRAR - Result
4583 KB/s (54%)
5903 KB/s (69%)
X264 HD Benchmark 4.0 - Pass 2
min: 61     avg: 63.4     median: 63.4 (40%)     max: 65.7 fps
68.8 fps (44%)
X264 HD Benchmark 4.0 - Pass 1
min: 230.3     avg: 233     median: 232.7 (83%)     max: 235 fps
250 fps (89%)
HWBOT x265 Benchmark v2.2 - 4k Preset
8 fps (29%)
TrueCrypt - Serpent Mean 100MB
0.5 GB/s (28%)
0.4 GB/s (23%)
TrueCrypt - Twofish Mean 100MB
0.9 GB/s (0%)
0.6 GB/s (0%)
TrueCrypt - AES Mean 100MB
5.4 GB/s (28%)
5.6 GB/s (29%)
Blender 2.79 *
444 Seconds (3%)
3DMark 06 - CPU
9078 Points (61%)
10974 Points (73%)
Super Pi mod 1.5 XS 1M *
min: 8.72     avg: 8.8     median: 8.8 (2%)     max: 8.8 Seconds
7.7 Seconds (2%)
Super Pi mod 1.5 XS 2M *
min: 19.674     avg: 19.7     median: 19.7 (1%)     max: 19.8 Seconds
17.4 Seconds (1%)
Super Pi Mod 1.5 XS 32M *
min: 488.9     avg: 496     median: 496.4 (2%)     max: 503.9 Seconds
421 Seconds (2%)
3DMark Vantage - P CPU no PhysX 1280x1024
37593 Points (53%)
3DMark 11 - Performance Physics 1280x720
min: 10708     avg: 10833     median: 10833 (53%)     max: 10958 points
11938 points (58%)
3DMark - Ice Storm Standard Physics 1280x720
74934 Points (48%)
78929 Points (51%)
3DMark - Ice Storm Extreme Physics 1920x1080
74763 Points (89%)
78531 Points (94%)
3DMark - Ice Storm Unlimited Physics 1280x720 offscreen
80235 Points (93%)
3DMark - Cloud Gate Standard Physics 1280x720
min: 8492     avg: 8523     median: 8522.5 (22%)     max: 8553 Points
9031 Points (23%)
3DMark - Fire Strike Physics 1920x1080
min: 12916     avg: 13019     median: 13018.5 (44%)     max: 13121 Points
13701 Points (47%)
Geekbench 3 - 32 Bit Multi-Core Score
18970 Points (34%)
Geekbench 3 - 32 Bit Single-Core Score
4217 Points (87%)
Geekbench 3 - 64 Bit Multi-Core Score
19770 Points (31%)
Geekbench 3 - 64 Bit Single-Core Score
4417 Points (90%)
Mozilla Kraken 1.1 - Total Score *
1022 ms (2%)
Sunspider - 1.0 Total Score *
68.1 ms (1%)
Power Consumption - Prime95 V28,10 Stress Power Consumption (external Monitor) ultra *
100%
1 9600K +
146 Watt (39%)
Power Consumption - Cinebench R15 Multi Power Consumption (external Monitor) ultra *
100%
1 9600K +
134 Watt (35%)

Average Benchmarks Intel Core i5-8600K → 100%

Average Benchmarks Intel Core i5-9600K → 103%

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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)