Intel Core i5 9400 vs i3 8100
31
out of 100
VS
26
out of 100
We compared two desktop CPUs: the 2.9 GHz Intel Core i5 9400 with 6-cores against the 3.6 GHz i3 8100 with 4-cores. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.
Review
Single-Core Performance
Performance in single-threaded apps and benchmarks
Multi-Core Performance
Measure performance when all cores are involved
Power Efficiency
The efficiency score of power consumption
Integrated Graphics
iGPU capabilities for gaming and 3D-intensive tasks
The "iGPU" and "Power Efficiency" have a minor impact on the DeviceFacts Score for desktop CPU.
Choose your main usage scenario to recalculate the Final Score and see which CPU suits your needs.
Value for money (Beta)
Key Differences
Advantages of Intel Core i5 9400
- Supports up to 128 GB DDR4-2666 RAM
- Has 2 more physical cores
- Has 3 MB larger L3 cache size
- Newer - released 1 year and 3 months later
- Around 4.1 GB/s (11%) higher theoretical memory bandwidth
- 10% faster in a single-core Geekbench v6 test - 1363 vs 1240 points
Test in Benchmarks
Comparing the performance of CPUs across various tasksCinebench
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
GeekBench v6
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
| File compression | 423.9 MB/sec | 296.5 MB/sec |
| Clang compilation | 38.7 Klines/sec | 25.4 Klines/sec |
| HTML 5 Browser | 114.6 pages/sec | 75.4 pages/sec |
| PDF Renderer | 167 Mpixels/sec | 112.9 Mpixels/sec |
| Text processing | 141.1 pages/sec | 125.7 pages/sec |
| Background blur | 35.1 images/sec | 25.6 images/sec |
| Photo processing | 49.1 images/sec | 34 images/sec |
| Ray tracing | 7.01 Mpixels/sec | 4.46 Mpixels/sec |
PassMark
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
| Integer math | 26.3 GOps/sec | 16.1 GOps/sec |
| Floating point math | 22.7 GOps/sec | 13.8 GOps/sec |
| Find prime numbers | 36M Primes/sec | 27M Primes/sec |
| Random string sorting | 16.3M Strings/sec | 10.3M Strings/sec |
| Data encryption | 2.9 GBytes/sec | 1.8 GBytes/sec |
| Data compression | 132 MBytes/sec | 82.3 MBytes/sec |
| Physics | 620 Frames/sec | 455 Frames/sec |
| Extended instructions | 11.7B Matrices/sec | 7.2B Matrices/sec |
Blender
Blender CPU
Performance Per Watt
| Cinebench 2024 / Watt | - | 3 PPW |
| Geekbench 6 Multi / Watt | 81.8 PPW | 56.8 PPW |
| Passmark CPU Mark / Watt | 144.1 PPW | 93.2 PPW |
| Blender / Watt | 1.23 PPW | 0.74 PPW |
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.
Recent User Tests
Intel Core i5 9400
| Date | Benchmark | Result |
|---|---|---|
| 📘 2026-09-16 -> op1 | Geekbench 6 CPU | 1452 / 4659 |
Intel Core i3 8100
No benchmark results yet
Specifications
Full technical specification of Intel Core i5 9400 and i3 8100General
| Vendor | Intel | Intel |
| Released | January 7, 2019 | October 5, 2017 |
| Type | Desktop | Desktop |
| Instruction Set | x86-64 | x86-64 |
| Codename | Coffee Lake | Coffee Lake |
| Model number | i5-9400 | i3-8100 |
| Integrated GPU | UHD Graphics 630 | UHD Graphics 630 |
| Rival Equivalent | - AMD Ryzen 5 3600 | - AMD Ryzen 3 2200G |
| Successor | - Intel Core Ultra 5 225 | - |
CPU
| P-Cores | 6 | 4 |
| P-Threads | 6 | 4 |
| Base Frequency (P) | 2.9 GHz | 3.6 GHz |
| Turbo Boost Frequency (P) | 4.1 GHz | - |
| Total Cores | 6 | 4 |
| Total Threads | 6 | 4 |
| Bus Frequency | 100 MHz | 100 MHz |
| Multiplier | 29x | 28x |
| Bus Bandwidth | 8 GT/s | 8 GT/s |
| L1 Cache | 64K (per core) | 64K (per core) |
| L2 Cache | 256K (per core) | 256K (per core) |
| L3 Cache | 9MB (shared) | 6MB (shared) |
| Unlocked Multiplier | No | No |
Package
| Fabrication Process | 14 nm | 14 nm |
| TDP (PL1) | 65 W | 65 W |
| Socket | LGA-1151 | LGA-1151 |
| Peak Temperature | 100°C | 100°C |
Desktop CPU ranking (#193rd place)
iGPU
| Integrated Graphics | Intel UHD Graphics 630 | Intel UHD Graphics 630 |
| GPU Base Clock | 350 MHz | 350 MHz |
| GPU Boost Clock | 1050 MHz | 1100 MHz |
| Shading Units | 192 | 192 |
| TMUs | 24 | 24 |
| ROPs | 3 | 3 |
| Execution Units | 24 | 24 |
| TGP | 15 W | 15 W |
iGPU FLOPS
Memory Support
| Memory Types | - DDR4-2666 | - DDR4-2400 |
| Max. Memory Size | 128 GB | 64 GB |
| Memory Channels | 2 | 2 |
| Max. Memory Bandwidth | 41.6 GB/s | 37.5 GB/s |
| ECC Support | No | Yes |
Misc
| Official Site | Intel Core i5 9400 official page | Intel Core i3 8100 official page |
| PCI Express Version | 3.0 | 3.0 |
| PCI Express Lanes | 16 | 16 |
Cast your vote
Total votes: 18
