x86 cpus' Guide

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Processor of the day

Cyrix 6x86MX PR166 FSB66 01.jpg
Cyrix 6x86MX PR166 (FSB66)

Most popular CPUs

Intel Core 2 Duo E8800 (ES)
Intel Core 2 Duo E6200 (ES)
Intel Core 2 Duo E7700
Intel Core 2 Duo E7800
Intel Pentium II 266 (0,35µ)

Intel Core i7-3770
Intel Core i5-3470
Intel Core i5-2400
Intel Core i5-4570
Intel Core i7-2600

Most powerful CPUs
Desktop PCs
AMD : Ryzen 9 7950X
Intel : Core i9-13900KF
Laptop PCs
AMD : Ryzen 9 6980HX
Intel : Core i9-12950HX
Servers
AMD : EPYC 9654P
Intel : Xeon Platinium 9282

Cyrix > CPUs > 486

Contents


Models
From collector's point of view





Models

 Sub-type
 Number
486DX PGA
14
486DX SQFP
4
486 Fascache
3
5x86 PGA
4
5x86 SQFP
2
Total
27

 Name
Codename
Core frequency
Bus frequency
Cache (L1/L2/L3)
Technology
Cyrix 486DX-33
M6
33 MHz
33 MHz
8 KB/-/-
???
Cyrix 486DX-40
M6
40 MHz
40 MHz
8 KB/-/-
???
Cyrix 486DX-50
M6
50 MHz
50 MHz
8 KB/-/-
???
Cyrix 486DX2-50
M7
50 MHz
25 MHz
8 KB/-/-
???
Cyrix 486DX2-v50
M7
50 MHz
25 MHz
8 KB/-/-
???
Cyrix 486DX2-50 (Write-Back)
M7
50 MHz
25 MHz
8 KB/-/-
???
Cyrix 486DX2-66
M7
66 MHz
33 MHz
8 KB/-/-
???
Cyrix 486DX2-v66
M7
66 MHz
33 MHz
8 KB/-/-
???
Cyrix 486DX2-66 (Write-Back)
M7
66 MHz
33 MHz
8 KB/-/-
???
Cyrix 486DX2-v66 (Write-Back)
M7
66 MHz
33 MHz
8 KB/-/-
???
Cyrix 486DX2-80
M7
80 MHz
40 MHz
8 KB/-/-
???
Cyrix 486DX2-v80
M7
80 MHz
40 MHz
8 KB/-/-
???
Cyrix 486DX4-75
M9
75 MHz
25 MHz
8 KB/-/-
???
Cyrix 486DX4-100
M9
100 MHz
33 MHz
8 KB/-/-
???
Cyrix 486DX-v33 SQFP
M6
33 MHz
33 MHz
8 KB/-/-
???
Cyrix 486DX2-v50 SQFP
M7
50 MHz
25 MHz
8 KB/-/-
???
Cyrix 486DX2-v66 SQFP
M7
66 MHz
33 MHz
8 KB/-/-
???
Cyrix 486DX2-v80 SQFP
M7
80 MHz
40 MHz
8 KB/-/-
???
Cyrix 486 S25 Fascache
M5
25 MHz
25 MHz
2 KB/-/-
???
Cyrix 486 S33 Fascache
M5
33 MHz
33 MHz
8 KB/-/-
???
Cyrix 486 S40 Fascache
M5
40 MHz
40 MHz
2 KB/-/-
???
Cyrix 5x86-80
M1sc
80 MHz
40 MHz
16 KB/-/-
0,65 µm
Cyrix 5x86-100
M1sc
100 MHz
33 MHz
16 KB/-/-
0,65 µm
Cyrix 5x86-120
M1sc
120 MHz
40 MHz
16 KB/-/-
0,65 µm
Cyrix 5x86-133
M1sc
133 MHz
33 MHz
16 KB/-/-
0,65 µm
Cyrix 5x86-100 SQFP
M1sc
100 MHz
33 MHz
16 KB/-/-
0,65 µm
Cyrix 5x86-120 SQFP
M1sc
120 MHz
40 MHz
16 KB/-/-
0,65 µm







Last update : 31/10/2022