SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Technology Stocks : Intel Corporation (INTC)
INTC 50.59+4.9%Feb 6 9:30 AM EST
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  
To: Harry Landsiedel who wrote (33426)10/1/1997 6:44:00 PM
From: Paul Engel   of 186894
 
Harry - Re: "Pentium Pro vs. Pentium II"

The Pentium Pro has a GTL+ on-board L2 cache that is accessed at the full speed of the CPU - 200 MHz for a 200 MHz CPU.

The Pentium II has a "half-speed" L2 cache attached to the SEC daughter card. A 300 MHz Pentium II will access this at a speed of 300/2 = 150 MHz - still below the Pentium Pro/200 MHz.

Therefore, any benchmark test (or real application) that can contain most of the code in L2 and L1 cache COULD execute faster with a Pentium Pro as opposed to the Pentium II.

I'm sure there are many, many applications in which the Pentium II will outperfom the Pentium Pro, where code and data accesses beyond the L2 cache are required, negating the speed advantage of the Pemtium Pro.

The other details - 33 MHz PCI bus, 66 MHz main board speed will also slow down performance.

The new 440LX chip set now supports 100 MHz SDRAM as well as AGP graphics boards. These speed up applications considerably where they are limited by main memory access and graphics memory performance.

The 440BX and Deschutes will appear next spring with 100 MHz bus speed and either half or full speed L2 cache capability.

As a comment - Intel created a superb chip/system with the Pentium Pro. It suffers from 16 bit performance , which originally was a drawback but Intel's targeting of the chip to 32 bit applications (Servers, workstations) nullified this "drawback". It is also expensive to produce.

As such, Intel made the Pentium Pro a hard act to follow - even for their own Pentium II.

Paul
Report TOU ViolationShare This Post
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  

HomeMailHotSubjectMarksPeopleMarksKeepersSettings
Terms Of UseContact UsCopyright/IP PolicyPrivacy PolicyAbout UsFAQAdvertise on SI
© 2026 Knight Sac Media.  Data provided by Twelve Data, Alpha Vantage, and CityFALCON News