Chapter 22
AMD-K6
Processor
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20695H/0—March 1998
AMD-K6
Processor Data Sheet
Preliminary Information
22
AMD-K6
Processor
I
Advanced 6-Issue RISC86
Superscalar Microarchitecture
Seven parallel specialized execution units
Multiple sophisticated x86-to-RISC86 instruction decoders
Advanced two-level branch prediction
Speculative execution
Out-of-order execution
Register renaming and data forwarding
Issues up to six RISC86 instructions per clock
Large On-Chip Split 64-Kbyte Level-One (L1) Cache
32-Kbyte instruction cache with additional predecode cache
32-Kbyte writeback dual-ported data cache
MESI protocol support
High-Performance IEEE 754-Compatible and 854-Compatible Floating-Point Unit
High-Performance Industry-Standard MMX Instructions
321-Pin Ceramic Pin Grid Array (CPGA) Package (Socket 7 Compatible)
Industry-Standard System Management Mode (SMM)
IEEE 1149.1 Boundary Scan
Full x86 Binary Software Compatibility
0.25-Micron Process Technology
N
N
N
N
N
N
N
I
N
N
N
I
I
I
I
I
I
I
AMD continues to deliver leading-edge processor solutions by advancing the highly
successful AMD-K6
processor with state-of-the-art 0.25-micron process technology.
The AMD-developed 0.25-micron process technology enables the AMD-K6 processor
to deliver higher performance with a lower core voltage and lower power dissipation.
This new version of the AMD-K6 processor continues to leverage today’s cost-effective
infrastructure to deliver a superior price/performance PC solution.
To provide industry-leading performance, the AMD-K6 processor incorporates the
innovative and efficient RISC86 microarchitecture, a large 64-Kbyte level-one cache
(32-Kbyte dual-ported data cache, 32-Kbyte instruction cache with predecode data), a
powerful IEEE 754-compatible and 854-compatible floating-point execution unit, and
a high-performance multimedia execution unit for executing industry-standard MMX
instructions. These features have been combined to deliver industry leadership in
16-bit and 32-bit performance, providing exceptional performance for both Windows
95 and Windows NT software bases.