i5-8600K vs i5-9400F - Assassin's Creed Odyssey GTX 1080 - Game Performance Benchmarks


i5-8600K i5-9400F

Multi-Thread Performance

12811 Pts
12212 Pts

Single-Thread Performance

2520 Pts
2387 Pts

Assassin's Creed Odyssey

i5-8600K vs i5-9400F in Assassin's Creed Odyssey using GTX 1080 - CPU Performance comparison at Ultra, High, Medium, and Low Quality Settings with 1080p, 1440p, 4K resolutions

i5-8600K i5-9400F

Ultra Quality
Resolution Frames Per Second
1080p
64.8 FPS
1080p
64.3 FPS
1440p
45.5 FPS
1440p
45.3 FPS
2160p
32.0 FPS
2160p
31.9 FPS
High Quality
Resolution Frames Per Second
1080p
99.8 FPS
1080p
99.3 FPS
1440p
64.5 FPS
1440p
64.3 FPS
2160p
41.0 FPS
2160p
40.9 FPS
Medium Quality
Resolution Frames Per Second
1080p
120.8 FPS
1080p
120.3 FPS
1440p
91.5 FPS
1440p
91.3 FPS
2160p
57.0 FPS
2160p
56.9 FPS
Low Quality
Resolution Frames Per Second
1080p
166.8 FPS
1080p
166.3 FPS
1440p
150.5 FPS
1440p
150.3 FPS
2160p
103.0 FPS
2160p
102.9 FPS
i5-8600K
  • For some games, a cpu with a higher clock speed, or in a technical name IPC (Instructions per clock), has better results than other CPU's with higher core count and lower core speed.
  • The i5-8600K has a higher turbo clock boost. Turbo Boost is a CPU feature that will run CPU clock speed faster than its base clock, if certain conditions are present. It will enable older software that runs on fewer cores, to perform better on newer hardware. Since games are software too, it is also applicable to them.
i5-9400F
  • The i5-9400F is more power efficient and generates less heat.

Compare i5-8600K vs i5-9400F specifications

i5-8600K vs i5-9400F Architecture

i5-8600K i5-9400F
CodenameCoffee LakeCoffee Lake
GenerationCore i5 (Coffee Lake)Core i5 (Coffee Lake Refresh)
MarketDesktopDesktop
Memory SupportDDR4DDR4
Part#SR3QUSRF6M
Production StatusActiveActive
ReleasedOct 2017Jan 2019

i5-8600K vs i5-9400F Cache

i5-8600K i5-9400F
Cache L164K (per core)64K (per core)
Cache L2256K (per core)256K (per core)
Cache L39MB (shared)9MB (shared)

i5-8600K vs i5-9400F Cores

i5-8600K i5-9400F
# of Cores66
# of Threads66
Integrated GraphicsN/AN/A
SMP # CPUs11

i5-8600K vs i5-9400F Features

i5-8600K i5-9400F
MMX SSE SSE2 SSE3 SSSE3 SSE4.2 AVX AVX2 EIST Intel 64 XD bit VT-x VT-d AES-NI TSX TXT CLMUL FMA3 F16C BMI1 BMI2 Boost 2.0MMX SSE SSE2 SSE3 SSSE3 SSE4.2 AVX AVX2 EIST Intel 64 XD bit VT-x VT-d AES-NI TSX TXT CLMUL FMA3 F16C BMI1 BMI2 Boost 2.0

i5-8600K vs i5-9400F Notes

i5-8600K i5-9400F
This processor comes with an unlocked BCLK multiplier, allowing users to set the multiplier value higher than shipped value, to facilitate better overclocking.

i5-8600K vs i5-9400F Performance

i5-8600K i5-9400F
Base Clock100 MHz100 MHz
Frequency3.6 GHz2.9 GHz
Multiplier36.0x29.0x
Multiplier UnlockedYesNo
TDP95 W65 W
Turbo Clockup to 4.3 GHzup to 4.1 GHz
Voltagevariablevariable

i5-8600K vs i5-9400F Physical

i5-8600K i5-9400F
Die Sizeunknownunknown
FoundryIntelIntel
PackageFC-LGA1151FC-LGA1151
Process Size14 nm14 nm
SocketIntel Socket 1151Intel Socket 1151
Transistorsunknownunknown
tCaseMax72°C72°C

Compare i5-8600K vs i5-9400F in more games


Discussion and Comments

Share Your Comments
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stressvanquish 1 year ago
i7 7700k vs i5 8600k
I'm purely looking for an upgrade in CPU terms for gaming. I've seen a lot of benchmarks and talk around about these 2 CPUs.

I'm pairing it with a 1080, and 16gb of RAM. Just wanted some opinions on which of these would be better at this stage for pushing the highest FPS and which would purely be the better option going into the future.

Thanks.
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yardgone 1 year ago
The 8600K hands down...It is a tremendous CPU that also overclocks extremely well and is right up there with the best gaming CPU's. It is also 8th gen versus 7th gen with 6 proper cores...It will also drive the 1080 and more importantly, with a Z370 motherboard will allow for a future expansion to the 9th Gen Intel CPU's in the 9800 and 9900K which are coming out soon and will work on the Z370 motherboard.
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silverbasil 1 year ago
i5 8600k or i7 8700 (non k)
Quick question what makes most sense to upgrade to a i5 8600k or i7 8700?

I have a gtx 1080 i should be able to oc to around 1900mhz atm 1700mhz but i only have an i5 8400 and was wondering what the best upgrade is, an i5 8600k i would oc to around 70-75 c and still have my scythe mugen 5 be silent or a stock i7 8700 i know just because of the additional threads get's alot hotter compared to an equal fast,oc'ed i5

My i5 8400 goes up to 60 c in prime95 small fft, i have an 2560x1440 144hz/165hz monitor so max performance is something i wouldn't mind having.

When im taking test like on game debat to se my performance score my cpu often score lower compared to the recomendation needed in 2560x1440
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stickssnaking 1 year ago
I run my 8600k at 5.0ghz 24/7. I probably get 15 to 20 fps more then I would at stock. I have a 2560x1080 144hz LG monitor. I get good framerates even though I am only rocking a gtx 1070. I personally think you will be very happy with the i5 8600k
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lenticularcheeryble 1 year ago
i5 8400 vs i5 8600k
Does the Base clock really matter.?

i5 8400(2.8Ghz) vs i5 8600k(3.6Ghz)

Because the Turbo clock frequency is almost near 8400(4Ghz) and 8600K(4.3Ghz).

Dose the Base Clock difference of 1Ghz really matters.?
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arguefoxpro 1 year ago
I guess what this really hinges on is whether or not you want to overclock. The base clocks don't really matter because they turbo to whatever the turbo speed is anyway when doing work. When looking at the turbo speeds there is a 300MHz difference between the 2 processors. That's not very significant so the 2 should perform similarly in games. It's only when you start to overclock the 8600K that the 2 processors start to really differ from each other. Really when overclocked the Core i5 8600K shouldn't be much different than the Core i7 8700K in gaming.

If it were me and I wanted to save some money I'd go ahead and get the Core i5 8400. If money was no object well then I wouldn't even consider the 8600K. I'd go ahead and get the 8700K. The 8600K should only be considered if you plan to overclock and can't afford the 8700K. The thing is... I can't decide for you. You have to make the decision but hopefully I have given you enough information to make it.
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keroseneengorge 1 year ago
Best but cheapest z370 Motherboard for i5 8600k
Which is the cheapest but best z370 motherboard which is able to overclock to 5GHz with the i5 8600K? The brands have to be ASUS, Gigabyte or MSI. I have the ASUS Prime z370-A picked out but wanting something cheaper as I have already gone over my budget. I will be playing games like Fortnite, PUGB (Not sure what other games yet).

Edit: Oh I can also get a Asrock motherboard, if that helps
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shapeoutline 1 year ago
i5-8600k normal temp?
So I recently have my i5-8600k (specifically built it by my own) and I was just wondering, what is the normal temperature for an i5-8600k? Mine would reach 22C to 32C without any active applications running in the background and 45C to 55C with Chrome, et cetera, then 55C to 105C by playing games. Is this normal?


If not, what is the best CPU Cooler for an i5-8600k? Thanks!
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gongwood 1 year ago
no 105c is definitely not normal. you need to see if your cooler is mounted properly and that your fan is plugged into the proper header. temps should not be exceeding about 80-85c max
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schoolsunkindness 1 year ago
I7 8700k or i5 8600k for gaming
Hi, it's my first time building a pc so I have very little knowledge about processors.
Both the i7 8700k and i5 8600k have similar single core and quad core performance according to user benchmark, I have heard that most games don't use more than 4 cores.
So I'll be playing in a 1440p 144hz IPS g-sync monitor with GTX 1080 and mostly games like counter strike,pubg and fortnite
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