i7-7740X vs i5-9400F - Assassin's Creed Odyssey GTX 1080 - Game Performance Benchmarks


i7-7740X i5-9400F

Multi-Thread Performance

12248 Pts
12212 Pts

Single-Thread Performance

2622 Pts
2387 Pts

Assassin's Creed Odyssey

i7-7740X 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

i7-7740X i5-9400F

Ultra Quality
Resolution Frames Per Second
1080p
63.7 FPS
1080p
64.3 FPS
1440p
45.2 FPS
1440p
45.3 FPS
2160p
31.8 FPS
2160p
31.9 FPS
High Quality
Resolution Frames Per Second
1080p
98.7 FPS
1080p
99.3 FPS
1440p
64.2 FPS
1440p
64.3 FPS
2160p
40.8 FPS
2160p
40.9 FPS
Medium Quality
Resolution Frames Per Second
1080p
119.7 FPS
1080p
120.3 FPS
1440p
91.2 FPS
1440p
91.3 FPS
2160p
56.8 FPS
2160p
56.9 FPS
Low Quality
Resolution Frames Per Second
1080p
165.7 FPS
1080p
166.3 FPS
1440p
150.2 FPS
1440p
150.3 FPS
2160p
102.8 FPS
2160p
102.9 FPS
i7-7740X
  • The i7-7740X has more threads. Larger programs are divided into threads (small sections) so that the processor can execute them simultaneously to get faster execution.
  • 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 i7-7740X 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 has higher Level 3 Cache. This is useful when you have substantial multiprocessing workloads, many computationally intense simultaneous processes. More likely on a server, less on a personally used computer for interactive desktop workloads.
  • The i5-9400F has more cores. The benefit of having more cores is that the system can handle more threads. Each core can handle a separate stream of data. This architecture greatly increases the performance of a system that is running concurrent applications.
  • The i5-9400F is more power efficient and generates less heat.

Compare i7-7740X vs i5-9400F specifications

i7-7740X vs i5-9400F Architecture

i7-7740X i5-9400F
CodenameKaby Lake-XCoffee Lake
GenerationCore i7 (X-Series)Core i5 (Coffee Lake Refresh)
MarketDesktopDesktop
Memory SupportDDR4DDR4
Part#unknownSRF6M
Production StatusActiveActive
ReleasedJun 2017Jan 2019

i7-7740X vs i5-9400F Cache

i7-7740X i5-9400F
Cache L164K (per core)64K (per core)
Cache L2256K (per core)256K (per core)
Cache L38MB (shared)9MB (shared)

i7-7740X vs i5-9400F Cores

i7-7740X i5-9400F
# of Cores46
# of Threads86
Integrated GraphicsN/AN/A
SMP # CPUs11

i7-7740X vs i5-9400F Features

i7-7740X i5-9400F
MMX SSE SSE2 SSE3 SSSE3 SSE4.2 AVX AVX2 EIST Intel 64 XD bit VT-x VT-d HTT 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

i7-7740X vs i5-9400F Notes

i7-7740X 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.

i7-7740X vs i5-9400F Performance

i7-7740X i5-9400F
Base Clock100 MHz100 MHz
Frequency4.3 GHz2.9 GHz
Multiplier43.0x29.0x
Multiplier UnlockedYesNo
TDP112 W65 W
Turbo Clockup to 4.6 GHzup to 4.1 GHz
Voltageunknownvariable

i7-7740X vs i5-9400F Physical

i7-7740X i5-9400F
Die Sizeunknownunknown
FoundryIntelIntel
PackageFC-LGA2066FC-LGA1151
Process Size14 nm14 nm
SocketIntel Socket 2066Intel Socket 1151
Transistorsunknownunknown
tCaseMax72°C72°C

Compare i7-7740X vs i5-9400F in more games


Discussion and Comments

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irritatedefeat 2 years ago
i7 7740x possible PSU issue
the problem that im facing is during rendering in maya using my cpu utilizing all of my threads.

my cpu config is:
i7 7740x
gigabyte x299 ud4 mobo
16gb ddr4 ram
gigabyte wf3 oc gtx1080
250gb ssd + 1tb hdd
700 watts cooler master b700 PSU

When i put a long batch render sequence which goes on for hours for rendering, my pc shuts down or reboots randomly after just few hours of rendering without the processor over heating.. through out my processor doesnt cross 85 degree C. this problem only occurs when i am using all the threads for rendering even if render it using one thread less i am able to render for 12 hours straight without any reboot or issues and also gpu renders are no issue at all. So asked my studio it guy for his opinion. what he said was my power supply might me proving unstable if not inadequate as 700watts is enough but since it is not a gold certified psu so swapping it might help solve this issue. I have used this psu for my earlier system which was a i7 3770 with gtx 750ti and no such issue there for rendering using cpu. is this really a power supply issue? please help
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factorvolvox 2 years ago
Lots of PSUs tested very thoroughly by HardOCP; start your search from their thoroughly reviewed models. Choose a quality 700-750 watt model MINIMUM. If ever pondering a Vega, best to consider starting your search at 850 watts. Hoping to catch a 7900X 2-3 years from now when/if prices drop? they can potentially draw 250-300 watts alone when OC'd at peak...

Better to run a quality PSU at only 50% of it's rated watts capacity than to be hoping your PSU (which will be 3-5 years old someday) can sustain an 80-85% max rated load forever.

Better to have 200-250 watts to spare than wondering the cause of spontaneous reboots /freezes/brownouts later...
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lichentwotinos 2 years ago
i7 7740x system reboot under load
i just bought a i7 7740x processor and while using softwares like maya to render using the cpu the moment the cpu is under load when i start the render the system freezes and resets its self while my cpu temp doesnt even cross 75 degrees. this doesnt happen if i use my gpu to do my renders, it runs fine. i face no such issue while gaming either. i am not overclocking any component here. please help

my config:
i7 7740x
gigabyte x299 ud4
16gb ram
gigabyte gtx1080 wf3
700 watts power supply
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guapocolumn 2 years ago


Well, it is hard to identify the problem without some testing. You can run some stress testing on the cpu and see if the shutdown happens when underload.
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stormletter 1 year ago
I7 7740x vs ryzen 1800x for cpu rendering?
I want to know what would be better for fast full load cpu 3d rendering using Arnold or vray in maya which goes on for 2 to 3days straight without reboots. An I7 7740x or amd ryzen 1800x as they belong to the same price range but vary in specs. And what ever processor I choose, I intend to keep using it for the next 4 years atleast.
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factorvolvox 1 year ago
For editing and rendering, more cores is better than faster cores
For vast majority of gaming, faster cores are better than more cores but some games can already run better on more cores.

The "better" does not mean it will suck big time for the other usage.
It will do just fine.

For price/performance value, there is nothing from Intel which beats the Ryzens.

Gaming on R7 1700 should be something like having an I7 7700 (no-K) but 1700 has more cores, which should allow to perform a lot better on rendering work.
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guapocolumn 2 years ago
i7 7700k or wait for I7-7740x
Have been looking to build new PC and these look very similar the X being slightly quicker but should I go the 7700 route or is the new batch worth waiting for?
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spraychicago 2 years ago
What can you connect with an i7 7740X?
I've been planning to upgrade for several months now and I felt like X299 could be a good choice. I know the i7 7740X only has 16 PCIe lanes, but would that be enough for a GTX 1080 Ti, M.2 SSD, and a USB 3.0 front header?
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kittzero 2 years ago
Why get the 7740X? That CPU makes almost no sense as it has nil resale value and disables tons of features on X299 motherboards. Unless you are absolutely certain that you will get a higher-end model in the not-so-distant future, it makes no sense. And if you do plan to upgrade the CPU, you may be better off eating the 0-500 extra up-front instead of burning 0 now and another 0+ later.

To make things worse, there have been rumors that the 12-18 core models may require a new socket revision, which means LGA2066 could be a dead socket by this time next year.
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cleaversculling 2 years ago
i7 7740x vs i7 7800x which should i choose?
i7 7740x

Max Number of PCI Express Lanes : 16
Memory Types : DDR4-2666
Memory Channel : 2

i7 7800x

Memory Types : DDR4-2400
Memory Channel : 4
Max Number of PCI Express Lanes : 28


memory channel like? 4 slot memory on motherboard? and pci-lanes? does it help ?
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