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Intel Core i7 9700K vs i5 10400F

We compared two desktop CPUs: the 3.6 GHz Intel Core i7 9700K with 8-cores against the 2.9 GHz i5 10400F with 6-cores. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.


General overview and comparison of the processors
Single-Core Performance
Performance in single-threaded apps and benchmarks
Measure performance when all cores are involved
Power Efficiency
The efficiency score of electricity consumption
NanoReview Final Score
Generic CPU rating

Key Differences

What are the key differences between 10400F and 9700K
Advantages of Intel Core i7 9700K
  • Unlocked multiplier
  • Has 2 more physical cores
  • 16% faster in a single-core Geekbench v5 test - 1291 vs 1111 points
  • Includes an integrated GPU Intel UHD Graphics 630
  • 14% higher Turbo Boost frequency (4.9 GHz vs 4.3 GHz)
Advantages of Intel Core i5 10400F
  • Newer - released 1-year and 7-months later
  • Consumes up to 32% less energy than the Core i7 9700K – 65 vs 95 Watt


Comparing the performance of CPUs in 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)


Full technical specification of Intel Core i7 9700K and i5 10400F


Vendor Intel Intel
Released October 8, 2018 May 1, 2020
Launch price 385 USD 157 USD
Type Desktop Desktop
Codename Coffee Lake Comet Lake
Model number i7-9700K i5-10400F
Socket LGA-1151 BGA-1200
Integrated GPU UHD Graphics 630 No


Cores 8 6
Threads 8 12
Base Frequency 3.6 GHz 2.9 GHz
Turbo Boost Frequency 4.9 GHz 4.3 GHz
Bus frequency 100 MHz 100 MHz
Multiplier 36x 29x
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 12MB (shared) 12MB (shared)
Unlocked Multiplier Yes No


Fabrication process 14 nm 14 nm
TDP 95 W 65 W
Max. temperature 100°C 100°C


Integrated Graphics Intel UHD Graphics 630 -
GPU Base Clock 350 MHz -
GPU Boost Clock 1000 MHz -
Shading Units 192 -
TMUs 24 -
ROPs 3 -
Execution Units 24 -
TGP 15 W -
Max. Resolution 4096x2304 - 60 Hz -

Memory support

Memory types DDR4-2666 DDR4-2666
Memory Size 128 GB 128 GB
Max. Memory Channels 2 2
Max. Memory Bandwidth 41.6 GB/s 41.6 GB/s
ECC Support No No


Official site Intel Core i7 9700K official page Intel Core i5 10400F official page
PCI Express Version 3.0 3.0
PCI Express Lanes 16 16
Instruction Set SSE4.1, SSE4.2, AVX-2 -

Cast your vote

Choose between two processors
40 (48.2%)
43 (51.8%)
Total votes: 83


So which CPU will you choose: Intel Core i5 10400F or i7 9700K?