K6-III FP performance?
Brought to you by The CPU Scorecard - Benchmarks & News, Prices & Reviews
The CPU Scorecard Home PageCPU FAQ List Benchmarks Comparisons Odds 'n' Ends Other Scores Overclocking Processors Shopping Upgrades
[ The CPU Scorecard > Processors > K6-III FP performance? ] Previous Next

Latest CPU News
Compare CPU Speeds
Compare Computer Prices
Compare CPU Features

AMD CPU's
Intel CPU's
Transmeta CPU's
VIA CPU's

Ask the CPU Scorekeeper

Compare & Shop for
a NEW Computer
or Accessories
Buy or Sell
a USED Computer
or Accessories
Subscribe to our FREE newsletter for the latest CPU releases, reviews, and rankings!

Best multitasking CPU?
AMD Thunderbird serial number?
K6-2+ Not Just for Notebooks?
More Old CPU's?
CPU Temperature Limits?
AMD K6-2 400 vs Celeron 366?
Dual AMD CPU Support?
Athlon roadmap?
What about Dual Celerons?
Pentium-III vs K6-2?
Can I improve a K6-2 L2 cache?
Pentium-E? -B? -EB? What?
What is my CPU?
3D CPUs vs 3D graphics?
AMD K6 233 vs Cyrix MII 266?
K6-III FP performance?
Mac G3 450 score?
Is the AMD K6-2 3D?
Don't you like Intel processors?
Is a Celeron good enough?
Celeron vs Pentium?
AMD K6-2 vs Intel Celeron?
AMD K6 and Y2K?
Celeron vs P-II vs P-III?
Mobile P-II 333 vs Celeron 400?
What is L2 cache?

 

Dear CPU Scorekeeper

I was told by a usually reliable source that AMD has improved the FP performance in the the K6 III line. I don't see how this is possible without changing the entire K6 category. I also haven't seen anything in the tech news about it.

Is there there something to this?

- - Michael, June 1999

See the questionCPU Scorekeeper Responds

The floating-point execution speed of AMD's K6-III line is not inherently faster than that of the K6-2. The main performance improvement in the K6-III is achieved through the incorporation of an on-chip, full-speed CPU cache.

Most processors use at least two levels of CPU cache memory to improve their execution speed: 'level 1' (L1) storage built into the chip and 'level 2' (L2) storage that normally resides within the supporting chip set on the motherboard. L1 cache runs at the same speed as the CPU, but is costly and thus small. Both K6-2's and K6-III's have 64kB of L1 cache. The L2 cache in the K6-2 series is built to run only at the speed of the system bus (either 66MHz or 100MHz, depending on the system). In the K6-III, 256kB of L2 cache is brought right into the CPU and can operate at the full speed of the chip (currently up to 450MHz). The K6-III will also employ any cache storage in the chip set as a 'level 3' or L3 cache, hence their touted Tri-Level Cache design.

The speed improvement can be quite dramatic (check our CPU Comparator to see the difference). However, the performance increase applies equally to both integer and floating-point operations. AMD provided a real floating-point improvement with their Athlon design.

Ask the CPU Scorekeeper

 

CPU Scorecard Quick Links
Compare CPU Speeds
Features
Prices
AMD
Intel
VIA
Previous Next
The CPU Scorecard assumes no risk or liability for damage or loss due to the use of the information or advice provided here. All responses are based on the best available information at the time of writing. However, users of this information who wish to apply it to their computer situations do so at their own risk.
Top of page...CPU FAQ List Benchmarks Comparisons Odds 'n' Ends Other Scores Overclocking Processors Shopping Upgrades

We appreciate your feedback!

Copyright 1998-2003
MTekComputer Consulting Ltd
All rights reserved