Intel Core i5-9400T vs Intel Core i5-8400

Comparative analysis of Intel Core i5-9400T and Intel Core i5-8400 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Security & Reliability, Advanced Technologies, Virtualization, Graphics, Graphics interfaces, Graphics image quality, Graphics API support, Peripherals. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, 3DMark Fire Strike - Physics Score, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps).

 

Differences

Reasons to consider the Intel Core i5-9400T

  • CPU is newer: launch date 1 year(s) 7 month(s) later
  • Around 50% more L1 cache; more data can be stored in the L1 cache for quick access later
  • Around 50% more L2 cache; more data can be stored in the L2 cache for quick access later
  • Around 86% lower typical power consumption: 35 Watt vs 65 Watt
Launch date September 2018 vs 5 January 2017
L1 cache 64K (per core) vs 256 KB
L2 cache 256K (per core) vs 1 MB
Thermal Design Power (TDP) 35 Watt vs 65 Watt

Reasons to consider the Intel Core i5-8400

  • Around 122% higher clock speed: 4.00 GHz vs 1.8 GHz
  • Around 13% better performance in PassMark - Single thread mark: 2381 vs 2113
  • Around 11% better performance in PassMark - CPU mark: 9237 vs 8345
Specifications (specs)
Maximum frequency 4.00 GHz vs 1.8 GHz
Benchmarks
PassMark - Single thread mark 2381 vs 2113
PassMark - CPU mark 9237 vs 8345

Compare benchmarks

CPU 1: Intel Core i5-9400T
CPU 2: Intel Core i5-8400

PassMark - Single thread mark
CPU 1
CPU 2
2113
2381
PassMark - CPU mark
CPU 1
CPU 2
8345
9237
Name Intel Core i5-9400T Intel Core i5-8400
PassMark - Single thread mark 2113 2381
PassMark - CPU mark 8345 9237
Geekbench 4 - Single Core 1048
Geekbench 4 - Multi-Core 4580
3DMark Fire Strike - Physics Score 3633
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 5.68
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 73.097
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.752
CompuBench 1.5 Desktop - Video Composition (Frames/s) 3.767
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 10.333
GFXBench 4.0 - Car Chase Offscreen (Frames) 1826
GFXBench 4.0 - Manhattan (Frames) 3900
GFXBench 4.0 - T-Rex (Frames) 6201
GFXBench 4.0 - Car Chase Offscreen (Fps) 1826
GFXBench 4.0 - Manhattan (Fps) 3900
GFXBench 4.0 - T-Rex (Fps) 6201

Compare specifications (specs)

Intel Core i5-9400T Intel Core i5-8400

Essentials

Architecture codename Coffee Lake Coffee Lake
Launch date September 2018 5 January 2017
Place in performance rating 1152 1144
Vertical segment Desktop Desktop
Launch price (MSRP) $190
Price now $259
Processor Number i5-8400
Series 8th Generation Intel® Core™ i5 Processors
Status Launched
Value for money (0-100) 13.28

Performance

64 bit support
L1 cache 64K (per core) 256 KB
L2 cache 256K (per core) 1 MB
L3 cache 9 MB (shared) 9 MB
Manufacturing process technology 14 nm 14 nm
Maximum case temperature (TCase) 72 °C 72 °C
Maximum frequency 1.8 GHz 4.00 GHz
Number of cores 6 6
Base frequency 2.80 GHz
Bus Speed 8 GT/s DMI3
Maximum core temperature 100°C
Number of threads 6

Memory

Supported memory types DDR4 DDR4-2666
Max memory channels 2
Maximum memory bandwidth 41.6 GB/s
Maximum memory size 128 GB

Compatibility

Max number of CPUs in a configuration 1 1
Thermal Design Power (TDP) 35 Watt 65 Watt
Low Halogen Options Available
Package Size 37.5mm x 37.5mm
Sockets supported FCLGA1151
Thermal Solution PCG 2015C (65W)

Security & Reliability

Intel® Trusted Execution technology (TXT)
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Memory Protection Extensions (Intel® MPX)
Intel® OS Guard
Intel® Secure Key technology
Intel® Software Guard Extensions (Intel® SGX)
Secure Boot

Advanced Technologies

Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Intel 64
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Stable Image Platform Program (SIPP)
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring

Virtualization

Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
AMD Virtualization (AMD-V™)
Intel® VT-x with Extended Page Tables (EPT)

Graphics

Device ID 0x3E92
Graphics base frequency 350 MHz
Graphics max dynamic frequency 1.05 GHz
Intel® Clear Video HD technology
Intel® Clear Video technology
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Max video memory 64 GB
Processor graphics Intel® UHD Graphics 630

Graphics interfaces

Number of displays supported 3

Graphics image quality

4K resolution support
Max resolution over DisplayPort 4096x2304@60Hz
Max resolution over eDP 4096x2304@60Hz
Max resolution over HDMI 1.4 4096x2304@24Hz

Graphics API support

DirectX 12
OpenGL 4.5

Peripherals

Max number of PCIe lanes 16
PCI Express revision 3.0
PCIe configurations Up to 1x16, 2x8, 1x8+2x4
Scalability 1S Only