Intel 200 MHz FV8050366200 User Manual
Product codes
FV8050366200
PENTIUM® PROCESSOR WITH MMX™ TECHNOLOGY
E
4
5/23/97 10:47 AM 24318502.DOC
INTEL CONFIDENTIAL
(until publication date)
1.0.
MICROPROCESSOR
ARCHITECTURE OVERVIEW
ARCHITECTURE OVERVIEW
The Pentium
®
processor with MMX™ technology
extends the Intel Pentium family of microprocessors.
It is binary compatible with the 8086/88, 80286,
Intel386™ DX, Intel386 SX, Intel486™ DX, Intel486
SX, Intel486 DX2 and Pentium processors
60/66/75/90/100/120/133/150/166/200.
It is binary compatible with the 8086/88, 80286,
Intel386™ DX, Intel386 SX, Intel486™ DX, Intel486
SX, Intel486 DX2 and Pentium processors
60/66/75/90/100/120/133/150/166/200.
The Pentium processor family currently includes the
following products.
following products.
•
Pentium processor with MMX technology:
–
Pentium processor with MMX technology at
233 MHz, iCOMP
233 MHz, iCOMP
®
Index 2.0 rating = 203
–
Pentium processor with MMX technology at
200 MHz, iCOMP Index 2.0 rating = 182
200 MHz, iCOMP Index 2.0 rating = 182
–
Pentium processor with MMX technology at
166 MHz, iCOMP Index 2.0 rating = 160
166 MHz, iCOMP Index 2.0 rating = 160
•
Pentium processor 133/150/166/200. The name
"Pentium processor 133/150/166/200" will be
used in this document to refer to the Pentium
processor with 133, 150, 166 and 200 MHz
versions of the Pentium processor:
"Pentium processor 133/150/166/200" will be
used in this document to refer to the Pentium
processor with 133, 150, 166 and 200 MHz
versions of the Pentium processor:
–
Pentium processor at 200 MHz, iCOMP
Index 2.0 rating = 142
Index 2.0 rating = 142
–
Pentium processor at 166 MHz, iCOMP
Index 2.0 rating = 127
Index 2.0 rating = 127
–
Pentium processor at 150 MHz, iCOMP
Index 2.0 rating = 114
Index 2.0 rating = 114
–
Pentium processor at 133 MHz, iCOMP
Index 2.0 rating = 111
Index 2.0 rating = 111
–
Pentium processor at 120 MHz, iCOMP
Index 2.0 rating = 100
Index 2.0 rating = 100
–
Pentium processor at 100 MHz, iCOMP
Index 2.0 rating = 90
Index 2.0 rating = 90
–
Pentium processor at 90 MHz, iCOMP Index
2.0 rating = 81
2.0 rating = 81
–
Pentium processor at 75 MHz, iCOMP Index
2.0 rating = 67
2.0 rating = 67
The Pentium processor family supports the features
of previous Intel Architecture processors, and
provides significant enhancements and additions
including the following:
of previous Intel Architecture processors, and
provides significant enhancements and additions
including the following:
•
Superscalar Architecture
•
Dynamic Branch Prediction
•
Pipelined Floating-Point Unit
•
Improved Instruction Execution Time
•
Separate Code and Data Caches
•
Writeback MESI Protocol in the Data Cache
•
64-Bit Data Bus
•
Bus Cycle Pipelining
•
Address Parity
•
Internal Parity Checking
•
Execution Tracing
•
Performance Monitoring
•
IEEE 1149.1 Boundary Scan
•
System Management Mode
•
Virtual Mode Extensions
•
Dual processing support
•
On-chip local APIC device
In addition to the features listed above, the Pentium
processor with MMX technology offers the following
enhancements over Pentium processor 133/150/
166/200:
processor with MMX technology offers the following
enhancements over Pentium processor 133/150/
166/200:
•
Support for Intel MMX technology
•
Doubled code and data cache sizes to 16 KB
each
each
•
Improved branch prediction
•
Enhanced pipeline
•
Deeper write buffers
The following features are supported by the Pentium
processor 133/150/166/200, but these features are
not supported by the Pentium processor with MMX
technology:
processor 133/150/166/200, but these features are
not supported by the Pentium processor with MMX
technology:
•
Functional redundancy check and Lock Step
operation.
operation.
•
Support for Intel 82498/82493 and 82497/82492
cache chipset products
cache chipset products
•
Split line accesses to the code cache