Intel Core i7 8700K vs i5 12400F
We compared two 6-core desktop CPUs: the 3.7 GHz Intel Core i7 8700K against the 2.5 GHz i5 12400F. 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
Performance
Measure performance when all cores are involved
Power Efficiency
The efficiency score of electricity consumption
NanoReview Final Score
Generic CPU rating
Key Differences
Advantages of Intel Core i7 8700K
- Unlocked multiplier
- Includes an integrated GPU Intel UHD Graphics 630
- 7% higher Turbo Boost frequency (4.7 GHz vs 4.4 GHz)
Advantages of Intel Core i5 12400F
- Newer - released 4-years and 3-months later
- Around 35.2 GB/s (85%) higher theoretical memory bandwidth
- Newer PCI Express version – 5.0
- Consumes up to 32% less energy than the Core i7 8700K – 65 vs 95 Watt
- Has 6 MB larger L3 cache size
- More modern manufacturing process – 10 versus 14 nanometers
- 32% faster in a single-core Geekbench v5 test - 1638 vs 1242 points
Benchmarks
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
By purchasing through links on this site, we may receive a commission from Amazon. This does not affect our assessment methodology.
Specifications
General
| Vendor | Intel | Intel |
| Released | October 5, 2017 | January 4, 2022 |
| Type | Desktop | Desktop |
| instruction set | x86-64 | x86-64 |
| Codename | Coffee Lake | Alder Lake-S |
| Model number | i7-8700K | i5-12400F |
| Socket | LGA-1151 | LGA-1700 |
| Integrated GPU | UHD Graphics 630 | No |
Performance
| Cores | 6 | 6 |
| Threads | 12 | 12 |
| Base Frequency | 3.7 GHz | 2.5 GHz |
| Turbo Boost Frequency | 4.7 GHz | 4.4 GHz |
| Bus frequency | 100 MHz | 100 MHz |
| Multiplier | 37x | 25x |
| Bus Bandwidth | 8 GT/s | - |
| L1 Cache | 64K (per core) | 80K (per core) |
| L2 Cache | 256K (per core) | 1280K (per core) |
| L3 Cache | 12MB (shared) | 18MB (shared) |
| Unlocked Multiplier | Yes | No |
Power
| Fabrication process | 14 nm | 10 nm |
| TDP | 95 W | 65 W |
| Max. temperature | 100°C | 100°C |
iGPU
| Integrated Graphics | Intel UHD Graphics 630 | - |
| GPU Base Clock | 350 MHz | - |
| GPU Boost Clock | 1200 MHz | - |
| Shading Units | 192 | - |
| TMUs | 24 | - |
| ROPs | 3 | - |
| Execution Units | 24 | - |
| TGP | 15 W | - |
| Max. Resolution | 4096x2304 - 60 Hz | - |
iGPU FLOPS
Memory support
| Memory types | DDR4-2666 | DDR5-4800, DDR4-3200 |
| Memory Size | 128 GB | 128 GB |
| Max. Memory Channels | 2 | 2 |
| Max. Memory Bandwidth | 41.6 GB/s | 76.8 GB/s |
| ECC Support | No | No |
Misc
| Official site | Intel Core i7 8700K official page | Intel Core i5 12400F official page |
| PCI Express Version | 3.0 | 5.0 |
| PCI Express Lanes | 16 | 20 |
| Extended instructions | SSE4.1, SSE4.2, AVX-2 | - |
Cast your vote
Total votes: 46