Share link|

Submit benchmark

Comparison Search Benchmarks CPUs Leaderboards CPU News & Articles GPU comparison Apple product comparison

Deutsch English Español Français Italiano Japanese

AMD FX-8100 vs AMD Ryzen 7 3800XT

Last updated: 2026-06-06

Table of Contents

Summary
Benchmarks
Specifications
User Reviews
Popular Comparisons

Summary

Benchmarks

Performance Overview
Average performance across multiple benchmarks

Single-core performance

Rank ?

AMD FX-8100

Rank ?

AMD Ryzen 7 3800XT

Multi-core performance

Rank 2 - 26 %

AMD FX-8100

Rank 1 - 100 %

AMD Ryzen 7 3800XT

Cinebench R20 Single-Core
Single-core performance

8C / 8T · 3.70 GHz

161 cb

8C / 16T · 4.70 GHz

539 cb

Cinebench R20 Multi-Core
Multi-core performance

8C / 8T · 3.70 GHz

796 cb

8C / 16T · 4.50 GHz

5,122 cb

More benchmarks

Cinebench 2024 (SC)
427 entries

Cinebench 2024 (MC)
422 entries

Cinebench R23 (SC)
690 entries

Cinebench R23 (MC)
665 entries

Geekbench 6 (SC)
1,989 entries

Geekbench 6 (MC)
1,927 entries

Cinebench R20 (SC)
666 entries

Geekbench 5 (SC)
2,512 entries

Cinebench R20 (MC)
615 entries

Geekbench 5 (MC)
2,483 entries

PassMark CPU-Mark
2,504 entries

CPU-Z Benchmark 17 (SC)
250 entries

CPU-Z Benchmark 17 (MC)
751 entries

Monero Hashrate
94 entries

V-Ray CPU-Render
251 entries

Cinebench R15 (SC)
1,113 entries

Cinebench R15 (MC)
1,110 entries

Geekbench 3 (SC)
945 entries

Geekbench 3 (MC)
941 entries

Cinebench R11.5 (SC)
826 entries

Cinebench R11.5 (MC)
837 entries

Specifications

At a glance

Wischen	AMD FX-8100	AMD Ryzen 7 3800XT
Family	AMD FX (30)	AMD Ryzen 7 (79)
CPU group	AMD FX-8000 (11)	AMD Ryzen 3000 (15)
Architecture	Vishera (Bulldozer)	Matisse (Zen 2)
Technology	32 nm	7 nm
Segment	Desktop	Desktop
Socket	AM3+	AM4 (PGA 1331)
Predecessor
Successor		AMD Ryzen 7 5800XT

CPU Cores and Base Frequency

Wischen	AMD FX-8100	AMD Ryzen 7 3800XT
CPU Cores / Threads	8 / 8	8 / 16
Hyperthreading / SMT	✗	✓
Core architecture	normal	normal
Cores:	8x	8x
Frequency:	2.80 GHz	4.20 GHz
Turbo (1 Core):	3.70 GHz	4.70 GHz
Turbo (All Cores):	3.70 GHz	4.50 GHz
L2-Cache
L3-Cache	8.00 MB	32.00 MB
Overclocking	✓	✓

Integrated graphics (iGPU)

Wischen	AMD FX-8100	AMD Ryzen 7 3800XT
GPU name	no iGPU	no iGPU
GPU frequency
CUs / Shader	/	/
Raytracing	✗	✗
Max. displays
Max. GPU Memory
Technology
Release date

NPU AI performance

Wischen	AMD FX-8100	AMD Ryzen 7 3800XT
AI hardware
AI specifications
NPU + CPU + iGPU

Memory & PCIe

Wischen	AMD FX-8100	AMD Ryzen 7 3800XT
Memory	DDR3-1866 (29.9 GB/s)	DDR4-3200 (51.2 GB/s)
Max. Memory		128 GB
Memory channels	2	2
ECC	Yes	Yes
PCIe		4.0 x 20
PCIe Bandwidth		39.4 GB/s

Thermal Management

Wischen	AMD FX-8100	AMD Ryzen 7 3800XT
TDP	95 W	105 W
TDP (PL2)
TDP up
TDP down
T. junction max.		95 °C

Technical details

Wischen	AMD FX-8100	AMD Ryzen 7 3800XT
Chip design	Unknown	Chiplet
AES-NI	✓	✓
Operating systems	Windows 10, Linux	Windows 10, Windows 11, Linux
Instruction set	x86-64 (64 bit)	x86-64 (64 bit)
ISA extensions	SSE4.1, SSE4.2, AVX, FMA3, FMA4	SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
Release date	Q4/2011	Q2/2020
Release price
Documents		Technical data sheet

User Reviews

Your rating

Here you can rate one or both of the processors. The average rating of AMD FX-8100 is 5.0 stars (2 ratings), while AMD Ryzen 7 3800XT has received 4.5 stars (12 ratings).

Click on the stars to rate one or both processors.

AMD FX-8100
8C / 8T · 2.80 - 3.70 GHz

★★★★★

AMD Ryzen 7 3800XT
8C / 16T · 4.20 - 4.70 GHz

★★★★★