Ryzen 9 3900x vs i7 8700k: Ryzen 9 3900X vs Core i7-8700K [15-Benchmark Showdown]

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3060 Ti

vs



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Intel Core i7 8700K vs AMD Ryzen 9 3900X:

performance comparison

VS

Intel Core i7 8700K

AMD Ryzen 9 3900X

Which is better: 6-core Intel Core i7 8700K at 3. 7 GHz or AMD Ryzen 9 3900X with 12 cores at 3.8 GHz? To find out, read our comparative testing of these desktop processors in popular benchmarks, games and heavy applications.

  1. Overview
  2. Differences
  3. Performance
  4. Features
  5. Comments

Overview

Overview and comparison of the main metrics from NanoReview

Single-threaded performance

Rating in tests using a single core

Core i7 8700K

56

Ryzen 9 3900X

60

900 02 Multi-threaded performance

All-core benchmarks

Core i7 8700K

29

Ryzen 9 3900X

59

Power Efficiency

Chip Power Efficiency

Core i7 8700 K

44

Ryzen 9 3900X

60

NanoReview Rating

Final CPU Score

Core i7 8700K

43

Ryzen 9 3900X

60

Key differences

What are the main differences between 3900X and 8700K

Reasons to choose Intel Core i7 8700K

  • There is an integrated graphics accelerator Intel UHD Graphics 630
  • 2% higher frequency in Turbo Boost (4. 7 GHz vs 4.6 GHz)

Reasons to choose AMD Ryzen 9 3900X

  • Has 53248 KB more L3 cache
  • More modern process technology — 7 vs. 14 nanometers
  • Has 6 more physical cores
  • was 1 year and 10 months later than the competitor
  • New PCI Express — 4.0 standard
  • 6.08 GB/s (15%) higher maximum memory bandwidth

Benchmark tests

Compare the results of processor tests in benchmarks

Cinebench R23 (single core)

Core i7 8700K

1209

Ryzen 9 3900X
+8%

1311

Cinebench R23 (multi-core)

Core i7 8700K

8817

Ryzen 93900X
+111%

18643

Passmark CPU (single core)

Core i7 8700K
+2%

2738

Ryzen 9 3900X

2688

Passmark CPU (multi-core)

Core i7 8700K

13644

Ryzen 9 3900X
+138%

32501

Geekbench 5 (single core)

Core i7 8700K

1231

Ryzen 9 3900X
+7%

1318

Geekbench 5 (multi-core)

Core i7 8700K

6618

Ryzen 9 3900X
+81%

11979

Add your Cinebench R23 results

Specifications

List of full technical specifications for Intel Core i7 8700K and AMD Ryzen 9 3900X

General information

Manufacturer Intel AMD
Release date October 5, 2017 July 7, 2019
Type Desktop Desktop
Instruction set architecture x86-64 x86-64
Codename Coffee Lake
Model number i7-8700K
Integrated graphics UHD Graphics 630 No

Processor

Performance Cores
Cores 6 12
threads 12 24
Frequency 3. 7 GHz 3.8 GHz
Max. frequency in Turbo Boost 4.7 GHz 4.6 GHz
General
Number of cores 6 12
Number of threads 12 24
Bus frequency 100 MHz 100 MHz
Multiplier 37x 38x
Bus speed 8 GT/s
Level 1 cache 64KB (per core) 64KB (per core)
Level 2 cache 256KB (per core) 512KB (per core)
Level 3 cache 12MB (shared) 64MB (shared)
Unlocked multiplier Yes Yes
Number of transistors 3.8 billion
Process 14 nanometers 7 nanometers
Power consumption (TDP) 95 W 105W
Socket LGA-1151 AM4
Critical temperature 100°C 95°C
Integrated graphics Intel UHD Graphics 630
GPU frequency 350 MHz
Boost GPU frequency 1200 MHz
Shader blocks 192
TMUs 24
ROPs 3
Computer units 24
TGP 15W
Max. resolution 4096×2304 — 60Hz

iGPU FLOPS

Core i7 8700K

0.38 teraflops

Ryzen 9 3900X

n/a

9000 2

Memory support

Memory type — DDR4-2666 — DDR4-3200
Max. size 128 GB 128 GB
Number of channels 2 2
Max. bandwidth 41.6 GB/s 47.68 GB/s
ECC support No Yes

Other

website

Official site Site Intel Core i7 8700K AMD Ryzen 9 3900X
PCI Express Version 3.0 4.0
Max. PCI Express lanes 16 16
Extended instructions SSE4.1, SSE4.2, AVX-2

Poll

What processor do you think is the best?

Core i7 8700K

11 (27. 5%)

Ryzen 9 3900X

29 (72.5%)

Total votes: 40 9 0003

Competitors

1.
AMD Ryzen 9 7950X vs. AMD Ryzen 9 3900X

2.
AMD Ryzen 5 7600X vs. AMD Ryzen 9 3900X

3.
Intel Core i5 13600K vs AMD Ryzen 93900X

4.
AMD Ryzen 9 5900X vs. AMD Ryzen 9 3900X

5.
AMD Ryzen 7 7800X3D vs. AMD Ryzen 9 3900X

6.
AMD Ryzen 7 5800X vs. AMD Ryzen 9 3900X

7.
AMD Ryzen 9 7900X vs. AMD Ryzen 9 3900X

8.
AMD Ryzen 7 5800X3D vs Intel Core i7 8700K

9.
Intel Core i5 12600K vs. Intel Core i7 8700K

10.
Intel Core i5 12400F vs. Intel Core i7 8700K

Compare other CPUs (540+)

Intel Core i7 8700K vs AMD Ryzen 9 3900XT:

performance comparison

VS

Intel Core i7 8700K

AMD Ryzen 9 3900XT

Which is better: 6-core Intel Core i7 8700K at 3. 7 GHz or AMD Ryzen 9 3900XT with 12 cores at 3.8 GHz? To find out, read our comparative testing of these desktop processors in popular benchmarks, games and heavy applications.

  1. Overview
  2. Differences
  3. Performance
  4. Features
  5. Comments

Overview

Overview and comparison of the main metrics from NanoReview

Single-threaded performance

Single core benchmark rating

Core i7 8700K

56

Ryzen 9 3900XT

60

900 02 Multi-threaded performance

All core benchmarks

Core i7 8700K

29

Ryzen 9 3900XT

59

Energy Efficiency

Chip Power Efficiency

Core i7 8700K

44

Ryzen 9 3900XT

66

NanoReview Rating

Final Processor Score

Core i7 8700K

43

Ryzen 9 3900XT

61

Key differences

What are the main differences between 3900XT and 8700K

Reasons to choose Intel Core i7 8700K

  • There is an integrated graphics accelerator Intel UHD Graphics 630

Reasons to choose AMD Ryzen 9 3900XT

  • Has 53248 KB more L3 cache
  • More modern process technology — 7 vs. 14 nanometers
  • Has 6 more physical cores
  • was 2 years and 10 months later than the competitor
  • New PCI Express — 4.0 standard
  • 6.08 GB/s (15%) higher maximum memory bandwidth

Benchmark tests

Compare the results of processor tests in benchmarks

Cinebench R23 (single core)

Core i7 8700K

1209

Ryzen 9 3900XT
+12%

1350

Cinebench R23 (multi-core)

Core i7 8700K

8817

Ryzen 93900XT
+108%

18317

Passmark CPU (single core)

Core i7 8700K

2738

Ryzen 9 3900XT

2745

Passmark CPU (multi-core)

Core i7 8700K

13644

Ryzen 9 3900XT
+139%

32670

Geekbench 5 (single core)

Core i7 8700K

1231

Ryzen 9 3900XT
+6%

1309

Geekbench 5 (multi-core)

Core i7 8700K

6618

Ryzen 9 3900XT
+85%

12251

Add your Cinebench R23 results

Specifications

List of full specifications for Intel Core i7 8700K and AMD Ryzen 9 3900XT

General information

Manufacturer Intel AMD
Release date October 5, 2017 July 7, 2020
Type Desktop Desktop
Instruction set architecture x86-64 x86-64
Codename Coffee Lake Zen 2 (Matisse)
Model number i7-8700K
Integrated graphics UHD Graphics 630 No

Processor

Performance Cores
Cores 6 12
threads 12 24
Frequency 3. 7 GHz 3.8 GHz
Max. frequency in Turbo Boost 4.7 GHz 4.7 GHz
General
Number of cores 6 12
Number of threads 12 24
Bus frequency 100 MHz 100 MHz
Multiplier 37x 38x
Bus speed 8 GT/s
Level 1 cache 64KB (per core) 64KB (per core)
Level 2 cache 256KB (per core) 512KB (per core)
Level 3 cache 12MB (shared) 64MB (shared)
Unlocked multiplier Yes Yes
Number of transistors 3.8 billion
Process 14 nanometers 7 nanometers
Power consumption (TDP) 95 W 105W
Socket LGA-1151 AM4
Critical temperature 100°C 95°C
Integrated graphics Intel UHD Graphics 630
GPU frequency 350 MHz
Boost GPU frequency 1200 MHz
Shader blocks 192
TMUs 24
ROPs 3
Computer units 24
TGP 15W
Max. resolution 4096×2304 — 60Hz

iGPU FLOPS

Core i7 8700K

0.38 teraflops

Ryzen 9 3900XT

n/a

9000 2

Memory support

Memory type — DDR4-2666 — DDR4-3200
Max. size 128 GB 128 GB
Number of channels 2 2
Max. bandwidth 41.6 GB/s 47.68 GB/s
ECC support No Yes

Other

website

Official site Site Intel Core i7 8700K AMD Ryzen 9 3900XT
PCI Express Version 3.0 4.0
Max. PCI Express lanes 16 24
Extended instructions SSE4.1, SSE4.

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