Intel Core i9 10900K vs i7 8700K

We compared two desktop CPUs: the 3.7 GHz Intel Core i9 10900K with 10-cores against the 3.7 GHz i7 8700K with 6-cores. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.

Review

General overview and comparison of the processors
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

What are the key differences between 8700K and 10900K
Advantages of Intel Core i9 10900K
  • Newer - released 2-years and 7-months later
  • Has 4 more physical cores
  • Has 8 MB larger L3 cache size
  • 13% higher Turbo Boost frequency (5.3 GHz vs 4.7 GHz)
  • Around 4.2 GB/s (10%) higher theoretical memory bandwidth
Advantages of Intel Core i7 8700K
  • Consumes up to 24% less energy than the Core i9 10900K – 95 vs 125 Watt

Benchmarks

Comparing the performance of CPUs in benchmarks
Cinebench R23 (Single-Core)
1405
Cinebench R23 (Multi-Core)
15250
Passmark CPU (Single-Core)
3161
Passmark CPU (Multi-Core)
23741
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
10778
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Specifications

Full technical specification of Intel Core i9 10900K and i7 8700K

General

Vendor Intel Intel
Released May 1, 2020 October 5, 2017
Type Desktop Desktop
instruction set x86-64 x86-64
Codename Comet Lake Coffee Lake
Model number i9-10900K i7-8700K
Socket LGA-1200 LGA-1151
Integrated GPU UHD Graphics 630 UHD Graphics 630

Performance

Cores 10 6
Threads 20 12
Base Frequency 3.7 GHz 3.7 GHz
Turbo Boost Frequency 5.3 GHz 4.7 GHz
Bus frequency 100 MHz 100 MHz
Multiplier 37x 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 20MB (shared) 12MB (shared)
Unlocked Multiplier Yes Yes

Power

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

iGPU

Integrated Graphics Intel UHD Graphics 630 Intel UHD Graphics 630
GPU Base Clock 350 MHz 350 MHz
GPU Boost Clock 1200 MHz 1200 MHz
Shading Units 192 192
TMUs 24 24
ROPs 3 3
Execution Units 24 24
TGP 15 W 15 W
Max. Resolution 4096x2304 - 60 Hz 4096x2304 - 60 Hz
iGPU FLOPS
0.38 TFLOPS
0.38 TFLOPS

Memory support

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

Misc

Official site Intel Core i9 10900K official page Intel Core i7 8700K official page
PCI Express Version 3.0 3.0
PCI Express Lanes 16 16
Extended instructions - SSE4.1, SSE4.2, AVX-2

Cast your vote

Choose between two processors
17 (43.6%)
22 (56.4%)
Total votes: 39

Comments

So which CPU will you choose: Intel Core i7 8700K or i9 10900K?
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