i3-8100B vs i5-10400F

Aggregate performance score

Core i5-10400F
2020
6 cores / 12 threads, 65 Watt
8.20
+117%
Core i3-8100B
4 cores / 4 threads, 65 Watt
3.78

Core i5-10400F outperforms Core i3-8100B by a whopping 117% based on our aggregate benchmark results.

Primary details

Comparing Core i5-10400F and Core i3-8100B processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking9151469
Place by popularity12not in top-100
Cost-effectiveness evaluation22.94no data
Market segmentDesktop processorLaptop
Power efficiency11.945.50
Architecture codenameComet Lake (2020)no data
Release date30 April 2020 (4 years ago)no data (2024 years ago)
Launch price (MSRP)$155no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i5-10400F and Core i3-8100B basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores6 (Hexa-Core)4 (Quad-Core)
Threads124
Base clock speed2.9 GHz3.6 GHz
Boost clock speed4.3 GHzno data
Bus rate8 GT/s8 GT/s
L1 cache64K (per core)no data
L2 cache256K (per core)no data
L3 cache12 MB (shared)6 MB Intel® Smart Cache
Chip lithography14 nm14 nm
Maximum core temperature100 °C100 °C
Maximum case temperature (TCase)72 °Cno data
64 bit support++
Windows 11 compatibility++

Compatibility

Information on Core i5-10400F and Core i3-8100B compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration11
SocketFCLGA1200FCBGA1440
Power consumption (TDP)65 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-10400F and Core i3-8100B. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
AVX+-
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.02.0
Hyper-Threading Technology+-
Idle States++
Thermal Monitoring++
Turbo Boost Max 3.0-no data

Security technologies

Core i5-10400F and Core i3-8100B technologies aimed at improving security, for example, by protecting against hacks.

TXT+-
EDB++
Secure Key++
MPX-+
Identity Protection++
SGXYes with Intel® MEYes with Intel® ME
OS Guard++

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-10400F and Core i3-8100B are enumerated here.

VT-d++
VT-x++
EPT++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-10400F and Core i3-8100B. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR4-2666
Maximum memory size128 GB64 GB
Max memory channels22
Maximum memory bandwidth41.6 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataIntel UHD Graphics 630
Max video memoryno data64 GB
Quick Sync Video-+
Clear Videono data+
Clear Video HDno data+
Graphics max frequencyno data1.05 GHz
InTru 3Dno data+

Graphics interfaces

Available interfaces and connections of Core i5-10400F and Core i3-8100B integrated GPUs.

Number of displays supportedno data3

Graphics image quality

Maximum display resolutions supported by Core i5-10400F and Core i3-8100B integrated GPUs, including resolutions over different interfaces.

4K resolution supportno data+
Max resolution over HDMI 1.4no data4096x2304@30Hz
Max resolution over eDPno data4096x2304@60Hz
Max resolution over DisplayPortno data4096x2304@60Hz

Graphics API support

APIs supported by Core i5-10400F and Core i3-8100B integrated GPUs, sometimes API versions are included.

DirectXno data12
OpenGLno data4.5

Peripherals

Specifications and connection of peripherals supported by Core i5-10400F and Core i3-8100B.

PCIe version3.03.0
PCI Express lanes1616

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

i5-10400F 8.20
+117%
i3-8100B 3.78

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

i5-10400F 13029
+117%
i3-8100B 5997

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

i5-10400F 1455
+16.9%
i3-8100B 1245

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

i5-10400F 5772
+62.2%
i3-8100B 3558

Gaming performance

Pros & cons summary


Performance score 8.20 3.78
Physical cores 6 4
Threads 12 4

i5-10400F has a 116.9% higher aggregate performance score, and 50% more physical cores and 200% more threads.

The Core i5-10400F is our recommended choice as it beats the Core i3-8100B in performance tests.

Note that Core i5-10400F is a desktop processor while Core i3-8100B is a notebook one.


Should you still have questions on choice between Core i5-10400F and Core i3-8100B, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


Intel Core i5-10400F
Core i5-10400F
Intel Core i3-8100B
Core i3-8100B

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


3.8 13574 votes

Rate Core i5-10400F on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.7 6 votes

Rate Core i3-8100B on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Core i5-10400F or Core i3-8100B, agree or disagree with our judgements, or report an error or mismatch.