Intel Core i9 10900K vs AMD Ryzen 9 3900XT

We compared two desktop CPUs: the 3.7 GHz Intel Core i9 10900K with 10-cores against the 3.8 GHz AMD Ryzen 9 3900XT with 12-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 3900XT and 10900K
Advantages of Intel Core i9 10900K
  • Includes an integrated GPU Intel UHD Graphics 630
  • 13% higher Turbo Boost frequency (5.3 GHz vs 4.7 GHz)
Advantages of AMD Ryzen 9 3900XT
  • Has 44 MB larger L3 cache size
  • More modern manufacturing process – 7 versus 14 nanometers
  • Newer PCI Express version – 4.0
  • Consumes up to 16% less energy than the Core i9 10900K – 105 vs 125 Watt
  • Has 2 more physical cores
  • Around 1.88 GB/s (4%) higher theoretical memory bandwidth

Benchmarks

Comparing the performance of CPUs in benchmarks
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)
18446
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
33001
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
12375
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Specifications

Full technical specification of Intel Core i9 10900K and AMD Ryzen 9 3900XT

General

Vendor Intel AMD
Released May 1, 2020 July 7, 2020
Type Desktop Desktop
instruction set x86-64 x86-64
Codename Comet Lake Zen 2
Model number i9-10900K -
Socket LGA-1200 AM4
Integrated GPU UHD Graphics 630 No

Performance

Cores 10 12
Threads 20 24
Base Frequency 3.7 GHz 3.8 GHz
Turbo Boost Frequency 5.3 GHz 4.7 GHz
Bus frequency 100 MHz 100 MHz
Multiplier 37x 38x
Bus Bandwidth 8 GT/s -
L1 Cache 64K (per core) 64K (per core)
L2 Cache 256K (per core) 512K (per core)
L3 Cache 20MB (shared) 64MB (shared)
Unlocked Multiplier Yes Yes

Power

Transistors - 3.8 billions
Fabrication process 14 nm 7 nm
TDP 125 W 105 W
Max. temperature 100°C 95°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
0.38 TFLOPS

Memory support

Memory types DDR4-2933 DDR4-3200
Memory Size 128 GB 128 GB
Max. Memory Channels 2 2
Max. Memory Bandwidth 45.8 GB/s 47.68 GB/s
ECC Support No Yes

Misc

Official site Intel Core i9 10900K official page AMD Ryzen 9 3900XT official page
PCI Express Version 3.0 4.0
PCI Express Lanes 16 24

Cast your vote

Choose between two processors
29 (11.4%)
225 (88.6%)
Total votes: 254

Comments

So which CPU will you choose: AMD Ryzen 9 3900XT or Intel Core i9 10900K?
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