IA32 Architecture Family: Difference between revisions
Fixed Atom-N (some have EM64T), Pentium (PSE != PSE-36), and added Am486 and Am5x86
| [unchecked revision] | [unchecked revision] |
m (Now where did those "unavaliable"'s come from?) |
(Fixed Atom-N (some have EM64T), Pentium (PSE != PSE-36), and added Am486 and Am5x86) |
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Line 68:
| 1989
| Optional
| {{No}}
| {{No}}
Line 73 ⟶ 74:
| {{No}}
| {{No}}
| The 486 integrates a 80x87 FPU on-chip (not the 486SX though), and supports power saving functions (System Management Mode, Stop Clock, Auto Halt Powerdown). It also supports SMP with an external APIC (though rare), and adds pipelining and on-chip caches, as well as related opcodes such as INVD, INVLPG, XADD and CMPXCHG. ▼
▲| {{No}}
▲| The 486 integrates a 80x87 FPU on-chip (not the 486SX though), and supports power saving functions (System Management Mode, Stop Clock, Auto Halt Powerdown).
|-
! Pentium
Line 85:
| {{No}}
| {{No}}
| The Pentium integrates an APIC (which may be permanently disabled by the BIOS), and supports PSE (
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! Pentium Pro
Line 219:
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|-
! Core
| 2008
| {{Yes}}
Line 243:
! Atom N-series
| 2008
| {{
| {{Yes}}
| {{Yes}}
Line 283:
! [[EM64T]]/[[AMD64]]
! Notes
|-
! Am486
Am5x86
| 1994
1995
| {{Yes}}
| {{No}}
| {{No}}
| {{No}}
| {{No}}
| {{No}}
| {{No}}
| {{No}}
| AMD's 486 clone turned out a success for being on-par with Intel's processors, while being a lot cheaper. Eventually, the higher-clocked Am5x86 was the fastest processor to fit in on a 486-based motherboard. Together with its 4x multiplier and 2x the cache size of most Intel's 486 chips, it was able to outperform the low end of Pentium chips.
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! K5
| |||