i5-6400T vs i3-8100B

VS

Aggregate performance score

Core i3-8100B
4 cores / 4 threads, 65 Watt
3.78
+40%
Core i5-6400T
2015
4 cores / 4 threads, 35 Watt
2.70

Core i3-8100B outperforms Core i5-6400T by a considerable 40% based on our aggregate benchmark results.

Primary details

Comparing Core i3-8100B and Core i5-6400T processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking14821712
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data0.47
Market segmentLaptopDesktop processor
Seriesno dataIntel Core i5 (Desktop)
Power efficiency5.507.30
Architecture codenameno dataSkylake (2015−2016)
Release dateno data1 September 2015 (9 years ago)
Launch price (MSRP)no data$192

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i3-8100B and Core i5-6400T 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 cores4 (Quad-Core)4 (Quad-Core)
Threads44
Base clock speed3.6 GHz2.2 GHz
Boost clock speedno data2.8 GHz
Bus typeno dataDMI 3.0
Bus rate8 GT/s4 × 8 GT/s
Multiplierno data22
L1 cacheno data256 KB
L2 cacheno data1 MB
L3 cache6 MB Intel® Smart Cache6 MB
Chip lithography14 nm14 nm
Die sizeno data122 mm2
Maximum core temperature100 °C66 °C
64 bit support++
Windows 11 compatibility+-

Compatibility

Information on Core i3-8100B and Core i5-6400T 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 (Uniprocessor)
SocketFCBGA1440FCLGA1151
Power consumption (TDP)65 Watt35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i3-8100B and Core i5-6400T. 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-+
vProno data+
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.02.0
Hyper-Threading Technology--
Idle States++
Thermal Monitoring++

Security technologies

Core i3-8100B and Core i5-6400T 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 i3-8100B and Core i5-6400T are enumerated here.

AMD-V-+
VT-d++
VT-x++
EPT++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i3-8100B and Core i5-6400T. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-2666DDR3, DDR4
Maximum memory size64 GB64 GB
Max memory channels22
Maximum memory bandwidthno data34.134 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
Intel UHD Graphics 630Intel HD Graphics 530
Max video memory64 GB64 GB
Quick Sync Video++
Clear Video++
Clear Video HD++
Graphics max frequency1.05 GHz950 MHz
InTru 3D++

Graphics interfaces

Available interfaces and connections of Core i3-8100B and Core i5-6400T integrated GPUs.

Number of displays supported33
eDPno data+
DisplayPort-+
HDMI-+
DVIno data+

Graphics image quality

Maximum display resolutions supported by Core i3-8100B and Core i5-6400T integrated GPUs, including resolutions over different interfaces.

4K resolution support++
Max resolution over HDMI 1.44096x2304@30Hz4096x2304@24Hz
Max resolution over eDP4096x2304@60Hz4096x2304@60Hz
Max resolution over DisplayPort4096x2304@60Hz4096x2304@60Hz
Max resolution over VGAno dataN/A

Graphics API support

APIs supported by Core i3-8100B and Core i5-6400T integrated GPUs, sometimes API versions are included.

DirectX1212
OpenGL4.54.5

Peripherals

Specifications and connection of peripherals supported by Core i3-8100B and Core i5-6400T.

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.

i3-8100B 3.78
+40%
i5-6400T 2.70

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.

i3-8100B 5999
+40.1%
i5-6400T 4281

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.

i3-8100B 1245
+33.2%
i5-6400T 935

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.

i3-8100B 3558
+39.4%
i5-6400T 2552

Gaming performance

Pros & cons summary


Performance score 3.78 2.70
Integrated graphics card 3.09 2.60
Power consumption (TDP) 65 Watt 35 Watt

i3-8100B has a 40% higher aggregate performance score, and 18.8% faster integrated GPU.

i5-6400T, on the other hand, has 85.7% lower power consumption.

The Core i3-8100B is our recommended choice as it beats the Core i5-6400T in performance tests.

Be aware that Core i3-8100B is a notebook processor while Core i5-6400T is a desktop one.


Should you still have questions on choice between Core i3-8100B and Core i5-6400T, 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 i3-8100B
Core i3-8100B
Intel Core i5-6400T
Core i5-6400T

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.


3.7 6 votes

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

  • 1
  • 2
  • 3
  • 4
  • 5
3.5 93 votes

Rate Core i5-6400T on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Core i3-8100B or Core i5-6400T, agree or disagree with our judgements, or report an error or mismatch.