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Intel Core i9 9900KF vs i9 10900K

We compared two desktop CPUs: the 3.6 GHz Intel Core i9 9900KF with 8-cores against the 3.7 GHz i9 10900K with 10-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 10900K and 9900KF
Advantages of Intel Core i9 9900KF
  • Consumes up to 24% less energy than the Core i9 10900K – 95 vs 125 Watt
Advantages of Intel Core i9 10900K
  • Newer - released 1-year and 4-months later
  • Has 2 more physical cores
  • Has 4 MB larger L3 cache size
  • Includes an integrated GPU Intel UHD Graphics 630
  • 6% higher Turbo Boost frequency (5.3 GHz vs 5 GHz)
  • Around 4.2 GB/s (10%) higher theoretical memory bandwidth


Comparing the performance of CPUs in benchmarks
Cinebench R20 (Single-Core)
Cinebench R20 (Multi-Core)
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)


Full technical specification of Intel Core i9 9900KF and i9 10900K


Vendor Intel Intel
Released January 7, 2019 May 1, 2020
Launch price 499 USD 488 USD
Type Desktop Desktop
Codename Coffee Lake Comet Lake
Model number i9-9900KF i9-10900K
Socket LGA-1151 BGA-1200
Integrated GPU No Intel UHD Graphics 630


Cores 8 10
Threads 16 20
Base Frequency 3.6 GHz 3.7 GHz
Turbo Boost Frequency 5 GHz 5.3 GHz
Bus frequency 100 MHz 100 MHz
Multiplier 36x 37x
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 16MB (shared) 20MB (shared)
Unlocked Multiplier Yes Yes


Fabrication process 14 nm 14 nm
TDP 95 W 125 W
Max. temperature 100°C 100°C

Memory support

Memory types DDR4-2666 DDR4-2933
Memory Size 128 GB 128 GB
Max. Memory Channels 2 2
Max. Memory Bandwidth 41.6 GB/s 45.8 GB/s
ECC Support No No


Official site Intel Core i9 9900KF official page Intel Core i9 10900K 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
8 (53.3%)
7 (46.7%)
Total votes: 15


So which CPU will you choose: Intel Core i9 10900K or i9 9900KF?