AMD K6-III 400 - AMD-K6-III/400 (65C 2.4V ES)


Specifications

Only samples of this part were released.
General information
TypeCPU / Microprocessor
Market segmentDesktop
FamilyAMD K6-III
CPU part numberAMD-K6-III/400 (65C 2.4V ES) is an OEM/tray microprocessor
Frequency (MHz)  ? 400
Bus speed (MHz)  ? 66 or 100
Clock multiplier  ? 
  • 6 (66 MHz bus)
  • 4 (100 MHz bus)
Package321-pin ceramic staggered PGA
1.95" x 1.95" (4.95 cm x 4.95 cm)
SocketSocket 7 (66 MHz bus); Super 7 (100 MHz bus)
 
Architecture / Microarchitecture
MicroarchitectureK6
CPUID591
Manufacturing process0.25 micron
21.3 million transistors
Data width32 bit
Floating Point UnitIntegrated
Level 1 cache size  ? 32 KB instruction cache with additional 20 KB pre-decode cache
32 KB writeback data cache
Level 2 cache size  ? 256 KB full speed
Physical memory (GB)4
FeaturesMMX and 3D Now! multimedia instructions
Low power features
  • Halt state
  • Stop Grant state  ? 
  • Stop Grant Inquire state
  • Stop Clock state
 
Electrical/Thermal parameters
V core (V)  ? 2.4
V I/O or secondary (V)3.3V (3.135V - 3.6V)
Minimum/Maximum operating temperature (°C)  ? 0 - 65
 
Notes on AMD AMD-K6-III/400
  • This processor supports both 66 MHz (Socket 7) and 100 MHz (Super 7) bus frequences. For 66 MHz bus speed use 6x clock multiplier, for 100 MHz bus speed use 4x clock multiplier.
  CPUs, related to AMD K6-III 400 MHz (AMD-K6-III/400 (65C 2.4V ES))  

Model Freq. L1
cache
L2
cache
Features
AMD K6-III family, Socket 7 / Super socket 7
   AMD K6-III 333 MHz (AMD-K6-III/333AFR)333 MHz64 KB256 KB
   AMD K6-III 400 MHz (AMD-K6-III/400AFR)400 MHz64 KB256 KB
   AMD K6-III 400 MHz (AMD-K6-III/400AHX)400 MHz64 KB256 KB
AMD K6-III family, K6 micro-architecture, Other sockets
   AMD K6-III 450 MHz (AMD-K6-III/450AFX)450 MHz64 KB256 KB
   AMD K6-III 450 MHz (AMD-K6-III/450AHX)450 MHz64 KB256 KB
Other families, K6 micro-architecture, Socket 7 / Super socket 7
   AMD K6-2 300 MHz (AMD-K6 3D/300AFR)300 MHz64 KB 
   AMD K6-2 300 MHz (AMD-K6-2/300AFR)300 MHz64 KB 
   AMD K6-2 333 MHz (AMD-K6 3D/333AFR)333 MHz64 KB 
   AMD K6-2 333 MHz (AMD-K6-2/333AFR)333 MHz64 KB 
   AMD K6-2 400 MHz (AMD-K6-2/400AFQ)400 MHz64 KB 
   AMD K6-2 400 MHz (AMD-K6-2/400AFR)400 MHz64 KB 
   AMD K6-2 400 MHz (AMD-K6-2/400AHX)400 MHz64 KB 

 • Within each category, the CPUs are sorted from slower (at the top) to faster (at the bottom)

Pictures (1)

AMD K6-III 400 - AMD-K6-III/400 (65C 2.4V ES)

400 MHz
321-pin ceramic staggered PGA

Engineering sample
AMD K6-III 400 - AMD-K6-III/400 (65C 2.4V ES)

Benchmarks

  • Compare results with tested CPUs from one of the following families:
  • To compare benchmark results with all other microprocessors please
Tested processor
CPU ID:0591h
CPU vendor string:AuthenticAMD
CPU name string:AMD-K(tm) 3D+ Processor

Integer performance

Part number   Result
Intel Celeron 300MHz FV80524RX300128  ? 
111.7%
Intel Celeron 300MHz CELERON 300  ? 
110.9%
AMD K6-2 475MHz AMD-K6-2/475AHX  ? 
108.5%
AMD K6-2 450MHz AMD-K6-2/450AFX  ? 
104.6%
AMD Mobile K6-2-P 450MHz AMD-K6-2/450ADK  ? 
104.3%
AMD K6-III 400MHz AMD-K6-III/400 (65C 2.4V ES)  ? 
100%
AMD K6-III 400MHz AMD-K6-III/400AHX  ? 
100%
Intel Pentium II 266MHz 80522PX266512EC  ? 
99.5%
Intel Celeron 266MHz CELERON 266  ? 
98.5%
AMD Mobile K6-2-P 400MHz AMD-K6-2/400AFK  ? 
93.6%
AMD Mobile K6-III-P 366MHz AMD-K6-III/366AFK  ? 
91.8%
Cyrix MII MII-433GP (100 MHZ 2.2V)  ? 
91.1%

Floating Point performance

Part number   Result
AMD Mobile K6-2-P 450MHz AMD-K6-2/450ADK  ? 
111.8%
Intel Celeron 400MHz CELERON 400  ? 
110.6%
Intel Celeron 400MHz FV80524RX400128  ? 
110%
Intel Celeron 366MHz CELERON 366  ? 
101.2%
Intel Celeron 366MHz FV80524RX366128  ? 
100.6%
AMD K6-III 400MHz AMD-K6-III/400 (65C 2.4V ES)  ? 
100%
AMD K6-III 400MHz AMD-K6-III/400AHX  ? 
100%
AMD Mobile K6-2-P 400MHz AMD-K6-2/400AFK  ? 
99.4%
Intel Pentium II 350MHz 80523PY350512PE SECC2  ? 
96.7%
Intel Pentium II 350MHz 80523PY350512PE  ? 
96.5%
Intel Pentium II 350MHz 80523PY350512  ? 
96.1%
AMD Mobile K6-2-P 380MHz AMD-K6-2/380AFK  ? 
95%

MMX / SSE / SSE2 performance

Part number   Result
AMD K6-2 475MHz AMD-K6-2/475AHX  ? 
118.4%
AMD K6-2 475MHz AMD-K6-2/475AFX  ? 
118.3%
AMD K6-2 450MHz AMD-K6-2/450AFX  ? 
112.3%
AMD Mobile K6-2-P 450MHz AMD-K6-2/450ADK  ? 
112%
Intel Celeron 533MHz FV80524RX533128  ? 
101.9%
AMD K6-III 400MHz AMD-K6-III/400 (65C 2.4V ES)  ? 
100%
AMD K6-III 400MHz AMD-K6-III/400AHX  ? 
100%
AMD Mobile K6-2-P 400MHz AMD-K6-2/400AFK  ? 
99.5%
AMD K6-2 400MHz AMD-K6-2/400AFR  ? 
99.4%
Intel Celeron 500MHz FV80524RX500128  ? 
95.6%
Intel Celeron 500MHz FV80524RX500128  ? 
95.5%
AMD Mobile K6-2-P 380MHz AMD-K6-2/380AFK  ? 
94.9%

CPU ID

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