K6 iii 450: AMD-K6-III/450AHX — AMD — WikiChip

AMD-K6-III/450AHX — AMD — WikiChip

AMD-K6-III/450AHX is a 32-bit x86 desktop microprocessor designed by AMD and introduced in early 1999. This MPU which was manufactured on a 0.25 µm process, based on K6-III microarchitecture, operated at 450 MHz with a bus of 100 MHz and a multiplier of 4.5. This processors had a maximum power dissipation rating of 29.5 W.

Main article: K6-III § Cache

L3$ can be 512 KiB to 2 MiB, depending on manufacturer and motherboard model. L3$ is off-chip.

Cache Info [Edit Values]
L1I$ 32 KiB

0.0313 MiB
32,768 B
3.051758e-5 GiB

1×32 KiB 2-way set associative
L1D$ 32 KiB

0.0313 MiB
32,768 B
3.051758e-5 GiB

1×32 KiB 2-way set associative
L2$ 256 KiB

0.25 MiB
262,144 B
2. 441406e-4 GiB

1×256 KiB 4-way set associative (shared)


This SoC has no integrated graphics processing unit.


[Edit/Modify Supported Features]

Supported x86 Extensions & Processor Features

MMX MMX Extension
EMMX Extended MMX Extension
3DNow! 3DNow! Extension
E3DNow! Extended 3DNow! Extension
  • Auto-power down state
  • Stop clock state
  • Halt state

Facts about «AMD-K6-III/450AHX — AMD»

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base frequency 449.99 MHz (0.45 GHz, 449,990 kHz) +
bus rate 99.99 MT/s (0.1 GT/s, 99,990 kT/s) +
bus speed 99. 99 MHz (0.1 GHz, 99,990 kHz) +
bus type FSB +
clock multiplier 4.5 +
core count 1 +
core family 5 +
core model 9 +
core name Sharptooth +
core stepping 0 +
core voltage 2.4 V (24 dV, 240 cV, 2,400 mV) +
core voltage tolerance 0.1 V +
cpuid 590 +
designer AMD +
die area 118 mm² (0.183 in², 1.18 cm², 118,000,000 µm²) +
family K6-III +
first announced May 13, 1999 +
first launched May 13, 1999 +
full page name amd/k6-iii/amd-k6-iii-450ahx +
instance of microprocessor +
io voltage 3.368 V (33.675 dV, 336.75 cV, 3,367.5 mV) +
io voltage tolerance 7% +
l1d$ description 2-way set associative +
l1d$ size 0. 0313 MiB (32 KiB, 32,768 B, 3.051758e-5 GiB) +
l1i$ description 2-way set associative +
l1i$ size 0.0313 MiB (32 KiB, 32,768 B, 3.051758e-5 GiB) +
l2$ description 4-way set associative +
l2$ size 0.25 MiB (256 KiB, 262,144 B, 2.441406e-4 GiB) +
ldate May 13, 1999 +
manufacturer AMD +
market segment Desktop +
max case temperature 338.15 K (65 °C, 149 °F, 608.67 °R) +
max cpu count 1 +
max memory 4,096 MiB (4,194,304 KiB, 4,294,967,296 B, 4 GiB, 0.00391 TiB) +
max storage temperature 423.15 K (150 °C, 302 °F, 761.67 °R) +
microarchitecture K6-III +
min case temperature 273.15 K (0 °C, 32 °F, 491.67 °R) +
min storage temperature 208. 15 K (-65 °C, -85 °F, 374.67 °R) +
model number AMD-K6-III/450AHX +
name AMD-K6-III/450AHX +
part number AMD-K6-III/450AHX +
platform Super 7 +
power dissipation 29.5 W (29,500 mW, 0.0396 hp, 0.0295 kW) +
process 250 nm (0.25 μm, 2.5e-4 mm) +
series K6-III Desktop +
smp max ways 1 +
technology CMOS +
thread count 1 +
transistor count 21,300,000 +
word size 32 bit (4 octets, 8 nibbles) +


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Type:CPU Manufacturer:AMD
family:K6-III microprocessors:AMD K6-III 333 — AMD-K6-III/333AFR

Type CPU / Microprocessor
Market segment Desktop
CPU part number

  • AMD-K6-III/450AHX is an OEM/tray microprocessor
Frequency    450 MHz
Bus speed    100 MHz
Clock multiplier    4. 5
Package 321-pin ceramic staggered PGA
1.95″ x 1.95″ (4.95 cm x 4.95 cm)
Socket Super 7
Introduction date May 13, 1999
Architecture / Microarchitecture
Microarchitecture K6
Processor core    Sharptooth
Manufacturing process 0.25 micron
21.3 million transistors
Data width 32 bit
Floating Point Unit Integrated
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 4 GB

  • MMX instructions
  • 3DNow! technology
Low power features

  • Halt state
  • Stop Grant state   
  • Stop Grant Inquire state
  • Stop Clock state
Electrical / Thermal parameters
V core    2. 4V ± 0.1V
Min/Recommended/Max V I/O or secondary 3.135V / 3.3V / 3.6V
Minimum/Maximum operating temperature    0°C — 65°C
Minimum/Typical/Maximum power dissipation 4.8 Watt (Stop Clock mode) / 17.7 Watt / 29.5 Watt

other microprocessors

AMD K6-III 450 — AMD-K6-III/450AFX

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

AMD Mobile K6-III 333 — AMD-K6-III/333AFK

AMD Mobile K6-III 350 — AMD-K6-III/350AFK

AMD Mobile K6-III 366 — AMD-K6-III/366AFK

AMD Mobile K6-III 380 — AMD-K6-III/380AFK

AMD Mobile K6-III 400 — AMD-K6-III/400ACK

AMD Mobile K6-III 433 — AMD-K6-III/433ACK

AMD Mobile K6-III 450 — AMD-K6-III/450ACK

AMD K6-IIIE+ 400 — K6-III+/400ATZ

AMD K6-IIIE+ 400 — K6-III+/400ITZ

AMD K6-IIIE+ 450 — K6-III+/450APZ

Tel:+86 0755-83247530   Email:[email protected] com

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Compare AMD K6-II 475 vs AMD K6-III 450

9000 9000

The technological process of these processors is equal to 250 nanometers

AMD K6-II 475 AMD K6-III 450
Both processors from AMD
Both processors belong to the K6
. in one time interval
Both models belong to the table segment
Both CPU models operate on the Socket 7
processors are identical in terms of nuclei: 1 nucleus
have 1 stream
Processors have the same cache of the 1st 64 KB

9001 system bus AMD K6-II 475 — 97 MHz

AMD K6-II 475 AMD K6-III 450
The nucleus architecture of the K6-III 475 processor is called Chompers The nucleus architecture of the K6-III 450 450 450 Data on the system bus AMD K6-III 450 — 100 MHz
III 450 K6-III 450 is not much inferior in terms of frequency, 450 MHz vs. 475 MHz
K6-II 475 contains much fewer transistors, 9 million vs. 21 million , 21 million vs. 9 million
K6-II 475 has a clear superiority in terms of thermal power, its TDP is slightly lower than that of its rival and is equal to 19.8 W The K6-III 450 needs a more powerful cooling system, because. to. its heat dissipation reaches 29.5 W

Comparison of instructions and technologies

Energy saving technologies
Technology or instruction name AMD K6-II 475 AMD K6-III 450 Short description
Halt mode Stop mode.
Stop Grant mode Energy saving status. nine0017
Standard extension set
Technology or instruction name AMD K6-II 475 AMD K6-III 450 Short description
MMX (Multimedia Extensions) Multimedia extensions.
3DNow! Optional MMX extension for AMD processors. nine0017


Overall Performance Rating

Overall Rating is calculated by a formula, taking into account indicators such as benchmark test results, base frequency, temperature data, instructions, socket, auto-overclocking technologies, structure, number of cores, threads, year release, as well as other data. The results of the overall rating showed that the K6-III 450 processor is not much superior to its rival K6-II 475. The K6-II 475 processor itself was able to score 68.29points, slightly losing to the competitor.

PassMark CPU Mark

Almost all CPUs presented on our site have been subjected to PassMark tests. The benchmark includes a large set of tools for a comprehensive assessment of the performance of personal computers, including the CPU. Among which are game physics calculations, encryption, floating point calculations, extended instruction checking, compression, integer calculations, multi-threaded and single-threaded tests. It is also possible to compare data with other configurations in the database. Probably the most popular benchmark on the web. The Performance Test showed slightly better performance for the K6-III 450 (68 points) over the K6-II 475 (58 points). The K6-II 475 falls short in this test. nine0110

Cinebench 10 (32 bit) Single-threaded test

MAXON has appeared, and is based on the 3D editor Cinema 4D. It uses a method of geometric optics — ray tracing. Single-Thread uses only one rendering thread and one core in its test. It is possible to test many processor systems. Works on Windows, Mac OS X. The basic performance testing mode is a photorealistic rendering of a 3D scene, working with light, simulating global illumination, spatial light sources, multilevel reflections, and procedural shaders. This benchmark for testing video cards and processors is already obsolete by now. nine0110

Cinebench 10 (32 bit) Multi-thread test

Multi-Thread is another test variant in the Cinebench R10 benchmark that uses multi-thread and multi-core testing mode. It is important to note that the number of threads in this version is limited to 16.

Cinebench 11.5 (64-bit) Multi-threaded test

Multi-threaded version of the CINEBENCH 11.5 test, — has the ability to test the processor for all 100, using all threads and cores. It differs from previous versions of the program, 64 threads will be involved here. Testing the K6-III 450 in the Cinebench 11.5 benchmark showed a result of 0.08 points, slightly ahead of its competitor. At this time, K6-II 475 gets its 0.07 points, which fully justifies their close positions in the ranking. nine0110

Cinebench 11.5 (64-bit) Single-threaded test

Good old multifunctional Cinebench version 11.5 from the Maxon team. In tests, as before, the ray tracing method is used, a complex 3D space is calculated with many crystalline and translucent and glass spheres. His tests are still relevant. In this case, Single-Core tests occur through the use of one core and one thread. The result of the test is the «number of frames per second» parameter. Testing in single-threaded mode of the K6-III 450 processor in Cinebench 11.5 Single-Core showed that with a score of 0.08 points, it is not far ahead of the competitor. But the K6-II 475 itself scored 0.07 points in this test. nine0110

Cinebench 15 (64-bit) Multi-thread test

The Multi-Thread version of Cinebench R15 will load your assembly completely, showing everything it can. All CPU cores and threads are involved in the process of rendering detailed 3D models. It is ideal for testing modern multi-threaded processors from Intel and AMD, as it can use 256 threads. The K6-III 450, with a score of 6.76, doesn’t outperform much in the multi-threaded Cinebench r15 benchmark. The K6-II 475 is slightly behind it with 5.76 points. nine0110

Cinebench 15 (64-bit) Single-threaded test

Cinebench Release R15 is the latest tester from the Finns from Maxon. In this version of Single Core, 1 thread is used for rendering. A complex 3D scene is rendered with a large number of light sources, highly detailed objects and reflections. It conducts system testing: both video cards and CPU. For processors, the result of the analysis will be the number of PTS points, and for video adapters, the value of frames per second FPS. The single-threaded test of the K6-III 450 processor in the Cinebench R15 program showed a result of 6.74 points, slightly ahead of the competitor. With a score of 5.74 on this test, the K6-II 475 is not far behind. nine0110

Geekbench 4.0 (64-bit) Multi-threaded test

This is already a 64-bit multi-threaded Geekbench 4 benchmark. It has wide cross-platform support for various operating systems and devices, making Geekbench tests the most popular now. In Geekbench 4 64-bit multi-core, the K6-III 450 scored 143.31 points, slightly better than the K6-II 475. In this test, the K6-II 475 achieves its 122.31 points.

Geekbench 4.0 (64-bit) Single thread test

The Single-Core version uses one thread. This product, like its earlier versions, can be run on operating systems running Mac OS, Windows, Linux. For the first time, this version also supports Android and iOS mobile devices. The latest single-threaded version of Geekbench 4 to date for testing laptops and desktops. The K6-III 450 scored higher in single thread testing from Geekbench 4, with a score of 143.72, but not far ahead of the competition. But the K6-II 475 itself also showed a good score of 122.51 points, slightly losing ground to the K6-III 450.

Geekbench 3 (32 bit) Multi-thread test

Multi Core version of Geekbench 3 — can allow you to make a strong test of your PC and show how stable your OS is.

Geekbench 3 (32 bit) Single-threaded test

Cross-platform Geekbench is often used to evaluate the system under Mac, but it works on both Linux and Windows. The main purpose is to check the speed of the CPU. The 32-bit version of the benchmark uses only one processor core and one thread. nine0110

Geekbench 2

Our archive contains up to two hundred CPU models that have test data in this benchmark. Today there are more recent options: the fifth and fourth. Geekbench 2 is currently out of date.

X264 HD 4.0 Pass 1

In essence, this is a practical test of processor performance by transcoding HD files to H.264 format, the so-called MPEG 4 x264 codec. An ideal benchmark for multi-core and multi-threaded CPUs. The frame rate processed per second is the result of the test. This test is faster than Pass 2 because it renders at the same speed. The MPEG 4 video processing speed of the K6-III 450 is slightly higher than that of the K6-II 475, and amounted to 1.83 FPS. The K6-II 475 was able to score 1.55 FPS, slightly behind the first processor. nine0110

X264 HD 4.0 Pass 2

This is a slightly different, slower test based on video file compression. You need to understand that a real task is being simulated, and the x264 codec is used in many video programs. The end result is also defined in frames per second. The result is a better quality video file. The same MPEG4 x264 codec is used, but the rendering is already happening at a variable rate. This means that the test results realistically assess the effectiveness of the platform. During the encoding of the video file by the K6-III 450 processor into the mpeg4 format, a processing speed of 0.42 Frames / s was obtained. While the K6-II 475 was slightly behind with a score of 0.36 fps. nine0110

3DMark06 CPU

Benchmark to evaluate the performance of the video system, and CPU. CPUs are tested in 2 ways: the artificial intelligence performs a path search, and the second test simulates the system using PhysX. Based on DirectX 9.0 by Futuremark. This test is often used by fans to overclock the system and overclockers and gamers. The K6-III 450 performed slightly faster in the gaming physics and pathfinding tests, scoring up to 111.09 points. K6-II 475 also coped with these tasks, showing a good result 95.03 points.

3DMark Fire Strike Physics

Approximately two hundred CPUs on our Internet resource have data in the 3DMark Fire Strike Physics test. It represents a test that performs game physics calculations.

WinRAR 4.0

Everyone knows the archiver. The checks took place under the control of Windows. The compression speed was estimated by the RAR algorithm; for this, large volumes of randomly generated files were generated. The resulting speed during compression «kilobytes per second» — this is the result of testing. K6-III 450 is slightly ahead of the competitor in WinRAR file compression speed, the result of data encoding was 45.97 Kb/s. The K6-II 475 delivered an encoding rate of 39.49 Kbps.

TrueCrypt AES

Not exactly a tester, but the results of its use can evaluate the performance of the entire system. It includes the function of instant encryption of disk partitions. Our site demonstrates the results of encryption speed in gigabytes per second using the AES algorithm. Unfortunately support for this project was stopped in 2014. The program can work in different operating systems: Linux, Windows and Mac OS X.

AMD K6-III | this… What is AMD K6-III?



AMD K6-III architecture

IA-32 (x86-32) microprocessor manufactured by AMD. Development of the AMD K6 and AMD K6-2 processor. First introduced by AMD Corporation in February 1999. It was positioned as a direct competitor to the Pentium III processor at a lower cost. nine0110

Is one of the most productive processors for Socket7/Super7 systems. The full-speed cache integrated into the kernel had to somehow fix the chipset’s limitation on memory caching. The only chipset that did not bypass memory cache remained «on paper» (ALI Aladdin 7).



K6-III (Sharptooth core)

  • CPU ID: AuthenticAMD Family 5 Model 9
  • 21. 3 million transistors in 250nm process. nine0322
  • Crystal area: 118 mm²
  • Typical power consumption/heat dissipation: 18.1-29.5 W (depending on frequency and model)
  • First level cache: 32+32 KB (data+instructions).
  • Second level cache: 256 KB full speed, on-die.
  • L3 cache: up to 1MB, located on the motherboard.
  • Instruction support: MMX, 3DNow!
  • Connector: Socket 7.
  • System bus frequency: 100 MHz.
  • nine0321 Supply voltage: 2.2 and 2.4 V.

  • Frequency: 400, 450 MHz.

Also available in mobile version:


  • CPU ID: AuthenticAMD Family 5 Model 9
  • Process technology: 250 nm
  • First level cache: 32+32 KB (data+instructions).
  • Second level cache: 256 KB full speed, on-die.
  • Instruction support: MMX, 3DNow!
  • Connector: Socket 7, Super7
  • FSB frequency: 66, 95, 96.2, 66/100, 100 MHz
  • Supply voltage: 2. 0 and 2.2 V.
  • Submitted: May 31, 1999
  • Frequency: 350, 366, 380, 400, 433, 450 MHz



  • CPU ID: AuthenticAMD Family 5 Model 13
  • Process technology: 180 nm
  • First level cache: 32+32 KB (data+instructions).
  • Second level cache: 256 KB full speed, on-die. nine0322
  • L3 cache: up to 1MB, located on the motherboard.
  • Instruction support: MMX, Extended 3DNow!, PowerNow!
  • Connector: Super7
  • FSB frequency: 95, 100 MHz
  • Supply voltage: 2.0 V (1.6 and 1.8 V for low voltage models)
  • Submitted: April 18, 2000
  • Frequency: 400, 450, 475, 500 MHz
  • CPU ID: K6-2+ AuthenticAMD Family 5 Model 13
  • Process technology: 180 nm
  • First level cache: 32+32 KB (data+instructions).
  • Second level cache: 256 KB full speed, on-die.