I5 8400 vs i5 8700: Core i7-8700 vs Core i5-8400 [in 15 benchmarks]

i5-8400 vs i7-8700 — Fortnite Battle Royale with GTX 1660 Benchmarks 1080p, 1440p, Ultrawide, 4K Comparison

GTX 1660 with

Intel Core i5-8400 @ 2.80GHz

Fortnite Battle Royale

GTX 1660 with

Intel Core i7-8700 @ 3.20GHz


i5-8400
i7-8700

Multi-Thread Performance

11694 Pts

15150 Pts

Single-Thread Performance

2334 Pts

2628 Pts

Fortnite Battle Royale

i5-8400 vs i7-8700 in Fortnite Battle Royale using GTX 1660 — CPU Performance comparison at Ultra, High, Medium, and Low Quality Settings with 1080p, 1440p, Ultrawide, 4K resolutions

i5-8400
i7-8700


Ultra Quality
Resolution Frames Per Second
1080p

81.4 FPS

1080p

85.5 FPS

1440p

53.1 FPS

1440p

55.8 FPS

2160p

28. 7 FPS

2160p

30.2 FPS

w1440p

43.8 FPS

w1440p

46.0 FPS

High Quality
Resolution Frames Per Second
1080p

132.4 FPS

1080p

138.1 FPS

1440p

92.1 FPS

1440p

96.1 FPS

2160p

54.2 FPS

2160p

56.6 FPS

w1440p

78.1 FPS

w1440p

81.4 FPS

Medium Quality
Resolution Frames Per Second
1080p

183.5 FPS

1080p

190.6 FPS

1440p

131.0 FPS

1440p

136. 3 FPS

2160p

79.7 FPS

2160p

83.0 FPS

w1440p

112.3 FPS

w1440p

116.8 FPS

Low Quality
Resolution Frames Per Second
1080p

285.6 FPS

1080p

295.8 FPS

1440p

209.0 FPS

1440p

216.8 FPS

2160p

130.6 FPS

2160p

135.9 FPS

w1440p

180.8 FPS

w1440p

187.6 FPS

i5-8400
    i7-8700
    • The i7-8700 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 i7-8700 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 i7-8700 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.

    Compare i5-8400 vs i7-8700 specifications

    i5-8400 vs i7-8700 Architecture
    i5-8400 i7-8700
    Codename Coffee Lake Coffee Lake
    Generation Core i5
    (Coffee Lake)
    Core i7
    (Coffee Lake)
    Market Desktop Desktop
    Memory Support DDR4 DDR4
    Part# SLAPL SR3QS
    Production Status Active Active
    Released Oct 2017 Jan 2018
    i5-8400 vs i7-8700 Cache
    i5-8400 i7-8700
    Cache L1 64K (per core) 64K (per core)
    Cache L2 256K (per core) 256K (per core)
    Cache L3 9MB (shared) 12MB (shared)
    i5-8400 vs i7-8700 Cores
    i5-8400 i7-8700
    # of Cores 6 6
    # of Threads 6 12
    Integrated Graphics N/A N/A
    SMP # CPUs 1 1
    i5-8400 vs i7-8700 Features
    i5-8400 i7-8700
    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 2.0
    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 2.0
    i5-8400 vs i7-8700 Performance
    i5-8400 i7-8700
    Base Clock 100 MHz 100 MHz
    Frequency 2.8 GHz 3.2 GHz
    Multiplier 28.0x 32.0x
    Multiplier Unlocked No No
    TDP 65 W 65 W
    Turbo Clock up to 4 GHz up to 4.6 GHz
    Voltage variable variable
    i5-8400 vs i7-8700 Physical
    i5-8400 i7-8700
    Die Size unknown unknown
    Foundry Intel Intel
    Package FC-LGA1151 FC-LGA1151
    Process Size 14 nm 14 nm
    Socket Intel Socket 1151 Intel Socket 1151
    Transistors unknown unknown
    tCaseMax 72°C 72°C

    Share Your Comments 90

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    intel core i7 — Will Idle temperature increase when upgrading i5-8400 to i7-8700?

    I have a passively cooled i5-8400 which runs at about 34-40 degrees for most of the day (peaking at about 60 degrees periodically) using a Cooler Master Hyper heat sink and a single 20cm Noctura case fan that runs at minimum (noiseless) speed until it needs to shift some warm air out of the case.

    The applications I use would benefit from a hyper-threading boost and rather than upgrade everything I’m thinking of swapping out the cpu for an i7-8700

    Whilst they are both 65W TDP, I am aware that hyperthreading, and the extra clock speed, can increase temps, but I cannot find any concrete figures of expected temp increases in a like-for-like environment.

    Has anyone gone through a similar process and can tell me what they observed?

    Here is a typical day for my i5-8400 system:

    Thanks

    • intel-core-i7
    • intel-core-i5
    • hyper-threading
    • silent-cooling






    1

    The CPU-World article
    Intel Core i5-8400 vs i7-8700
    gives both CPUs identical thermal properties.

    Both CPUs are rated for the maximum of 100°C (Digital Thermal Sensor),
    from which you are very far with a maximal running temperature of only 60°.

    It should be noted that the two CPUs are almost identical, as the i5 is
    only an i7 that didn’t make the mark on performance. Temperature is directly
    related to power consumption, which is identical for both.

    I don’t think that you will see a big difference between the
    two processors as regarding the temperature.






    3

    I took the plunge and got a used i7-8700 off eBay…

    For me at least, the temp differences are very little — in fact, if anything it’s running a tiny bit cooler! — but that could be down to a number of factors beyond the CPU itself.

    However increased clock speeds and hyperthreading do seem to have given me enough of a boost to be worth while — glad to be getting a little more more life out of my system before a bigger upgrade in the future.









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    nine0000 Intel Core i7 8700 vs i5 8400:

    performance comparison

    VS

    Intel Core i7 8700

    Intel Core i5 8400

    Which is better: Intel Core i7 8700 at 3. 2 GHz (with Turbo Boost up to 4.6) or i5 8400 at 2.8 GHz (with Turbo Boost up to 4.0)? To find out, read our comparative testing of these 6-core desktop processors in popular benchmarks, games and heavy applications.

    1. Overview
    2. Differences
    3. Performance
    4. Features
    5. Comments

    Overview

    Overview and comparison of the main metrics from NanoReview

    Single -flow performance

    Rating in tests using one nucleus

    Core i7 8700

    55

    Core i5 8400

    48

    Multi -flow performance

    Tests in benchmarks where all nuclei 9 are involved0005

    Core i7 8700

    30

    Core i5 8400

    23

    Energy efficiency

    Energy Effect CHIP

    Core i7 8700

    44

    Core

    4000

    Renting Nanoreview Nanoreview.

    Core i7 8700

    43

    Core i5 8400

    38

    Key differences

    What are the main differences between 8400 and 8700
    nine0005

    Reasons to choose Intel Core i7 8700

    • Has 3MB more L3 cache
    • 15% faster Turbo Boost frequency (4. 6GHz vs 4GHz)
    • 13% faster single core Geekbench v5 – 1172 and 1034 points

    Benchmark tests

    Compare the results of processor tests in benchmarks

    Cinebench R23 (single core)

    Core i7 8700
    +19%

    1226

    Core i5 8400

    1031

    Cinebench R23 (multi-core)

    Core i7 8700
    +22%

    7178

    Core i5 8400

    5900

    Passmark CPU (single core)

    Core i7 8700
    +11%

    2666

    Core i5 8400

    2399

    Passmark CPU (multi-core)

    Core i7 8700
    +40%

    12984

    Core i5 8400

    9263

    Geekbench 5 (single core)

    Core i7 8700
    +13%

    1175

    Core i5 8400

    1039

    Geekbench 5 (multi-core)

    Core i7 8700
    +34%

    6221

    Core i5 8400

    4641

    ▶️ Add your score to Cinebench R23

    Specifications

    List of full technical specifications of the Intel Core i7 8700 and i5 8400

    General information

    Manufacturer Intel Intel
    Release date October 5, 2017 October 5, 2017
    Type Desktop Desktop
    Instruction set architecture x86-64 x86-64
    Codename Coffee Lake Coffee Lake
    Model number i7-8700 i5-8400
    Socket LGA-1151 LGA-1151
    Integrated graphics UHD Graphics 630 UHD Graphics 630

    Performance

    nine0435 6

    nine0435 32x

    Cores 6
    Number of threads 12 6
    Frequency 3. 2 GHz 2.8 GHz
    Max. frequency in Turbo Boost 4.6 GHz 4 GHz
    Bus frequency 100 MHz 100 MHz
    Multiplier 28x
    Tire speed 8 ​​GT/s 8 ​​GT/s
    Level 1 cache 64KB (per core) 64KB (per core)
    Level 2 cache 256KB (per core) 256KB (per core)
    Level 3 cache 12MB (shared) 9MB (general)
    Unlocked multiplier No No

    Power consumption

    nine0435 100°C

    Process 14 nanometers 14 nanometers
    Power consumption (TDP) 65 W 65 W
    Critical temperature 100°C

    nine0435 192

    Integrated graphics Intel UHD Graphics 630 Intel UHD Graphics 630
    GPU frequency 350 MHz 350 MHz
    Boost GPU frequency 1200 MHz 1050 MHz
    Shader blocks 192
    TMUs 24 24
    ROPs 3 3
    Computer units 24 24
    TGP 15 W 15 W
    Max. resolution 4096×2304 — 60Hz 4096×2304 — 60Hz

    Igpu Flops

    Core i7 8700

    0.38 Teraflops

    Core i5 8400

    0.38 Teraflops

    Support memory

    9000

    DDR4-2666 DDR4-2666 Max. size 128 GB 128 GB Number of channels 2 2 Max. bandwidth 41.6 GB/s 41.6 GB/s ECC support No No

    Other

    Official site Site Intel Core i7 8700 Site Intel Core i5 8400
    PCI Express version 3.0 3.0
    Max. PCI Express lanes 16 16
    Extended instructions SSE4.1, SSE4.2, AVX-2 SSE4.1, SSE4.2, AVX-2

    Poll

    What processor do you think is the best?

    Core i7 8700

    15 (71.