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Intel Pentium III 500 - 80525PY500512 (BX80525U500512 / BX80525U500512E)

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Intel Pentium III 500 MHz specifications

The specs can be used for short-term
listings on auction and classifieds sites
General information
TypeCPU / Microprocessor
Market segmentDesktop
Family
Intel Pentium III
CPU part numbers
  • 80525PY500512 is an OEM/tray microprocessor
  • BX80525U500512 is a boxed microprocessor
  • BX80525U500512E is a boxed microprocessor
Frequency  ? 500 MHz
Bus speed  ? 100 MHz
Clock multiplier  ? 5
PackageSingle Edge Contact Cartridge 2 (SECC2)
SocketSlot 1 / SC242
Introduction date26-Feb-99
Price at introduction$696
S-spec numbers
Part number ES/QS processors Production processors
  Q814 Q818 QA79 SL35E SL365 SL37D SL38F SL3CD
80525PY500512+++++ + 
BX80525U500512     + +
BX80525U500512E       +
Architecture / Microarchitecture
MicroarchitectureP6
Processor core  ? Katmai
Core steppings  ? kB0 (SL365, SL38F, SL3CD)
kC0 (QA79, SL35E, SL37D)
CPUIDs672 (SL365, SL38F, SL3CD)
673 (SL35E, SL37D)
Manufacturing process0.25 micron
9.5 million transistors
Data width32 bit
Data bus width64 bit
The number of CPU cores1
The number of threads1
Floating Point UnitIntegrated
Level 1 cache size  ? 16 KB instruction cache
16 KB data cache
Level 2 cache size  ? Half-speed in-package 512 KB
MultiprocessingUp to 2 processors
Extensions and Technologies
  • MMX instructions
  • SSE / Streaming SIMD Extensions
Low power features
  • AutoHALT state  ? 
  • Stop Grant state  ? 
  • Sleep state  ? 
  • Deep Sleep state  ? 
  • System Management Mode
Electrical / Thermal parameters
Min/Recommended/Max V core1.93V / 2V / 2.07V
Minimum/Maximum operating temperature  ? 0°C - 90°C
Minimum/Maximum power dissipation  ? 3.24 Watt (Stop Grant mode) / 37.52 Watt
Notes on Intel Pentium III 500 MHz
  • The processor is usually marked as 500/512/100/2.0V S1

Detailed side-by-side comparison

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    You can specify any of the following: manufacturer name, family name, model number, part number, core name, microarchitecture, manufacturing process, socket name, operating frequency, bus speed, the number of cores and threads, cache size, TDP and GPU type. Here are some examples of searches: 80525PY500512, Intel Pentium III 500MHz, Katmai Slot 1, P6 1 core 1 thread, 0.25 micron 0.5 MB noGPU


Pentium III 500 MHz Overclocking

Sorry, overclocking information for this CPU is not available at this time.

Intel Pentium III 500 MHz Benchmarks and Performance evaluation

Compare Intel 80525PY500512 benchmark results with all tested CPUs from one of the following families:

You can also compare this model with other tested CPUs in our

For averaged performance in integer, floating-point, SIMD and memory-intensive applications please see the next section.


Integer, Floating-Point, SIMD and Memory performance

The graphs below show up to 10 microprocessors with approximately the same level of performance in integer (CPU), floating-point (FPU), SIMD and memory benchmarks. All processors were not overclocked, and were tested at a nominal frequency, with a stock heatsink and default BIOS settings. Click on the '?' mark next to each model name to see specifications of that model, and details of the test platform.

Benchmarked processor:

CPU ID:0673h
CPU vendor string:GenuineIntel

Integer performance

Model / Part number   Result  
AMD Athlon 550MHz AMD-K7550MTR51B C
131.4%  ? 
AMD Athlon 550MHz AMD-K7550 (ES)
131%  ? 
Intel Pentium III 600E (Socket 370)
119.6%  ? 
Intel Pentium III 550E (Socket 370)
110%  ? 
Intel Celeron 533MHz FV80524RX533128
106.1%  ? 
Intel Pentium III 500MHz 80525PY500512
100%  ? 
Intel Celeron 500MHz FV80524RX500128
99.5%  ? 
Intel Celeron 466MHz FV80524RX466128
92.8%  ? 
Intel Pentium III 450MHz 80525PY450512
89.9%  ? 
Intel Celeron 433MHz 80524RX433128
86.6%  ? 
Intel Celeron 433MHz BX80524P433128
86.1%  ? 

Floating Point performance

Model / Part number   Result  
AMD Athlon 550MHz AMD-K7550MTR51B C
127.7%  ? 
AMD Athlon 550MHz AMD-K7550 (ES)
127.3%  ? 
Intel Pentium III 600E (Socket 370)
119.6%  ? 
Intel Pentium III 550E (Socket 370)
109.9%  ? 
Intel Celeron 533MHz FV80524RX533128
106.1%  ? 
Intel Pentium III 500MHz 80525PY500512
100%  ? 
Intel Celeron 500MHz FV80524RX500128
99.6%  ? 
Intel Celeron 466MHz FV80524RX466128
92.8%  ? 
Intel Pentium III 450MHz 80525PY450512
89.8%  ? 
Intel Celeron 433MHz 80524RX433128
86.7%  ? 
Intel Celeron 433MHz BX80524P433128
86.2%  ? 

MMX / SSE / SSE2 performance

Model / Part number   Result  
Intel Pentium III 600EB (Socket 370)
119.6%  ? 
Intel Pentium III 600E (Socket 370)
119.6%  ? 
AMD Athlon 550MHz AMD-K7550MTR51B C
114.7%  ? 
AMD Athlon 550MHz AMD-K7550 (ES)
114.3%  ? 
Intel Pentium III 550E (Socket 370)
110%  ? 
Intel Pentium III 500MHz 80525PY500512
100%  ? 
Intel Pentium III 450MHz 80525PY450512
89.9%  ? 
Intel Pentium III 400MHz 80525PZ400512
79.9%  ? 
Intel Pentium III 400MHz DC1EC501A400
79.3%  ? 
VIA C3 933MHz C3-933AMHz
59.8%  ? 
Intel Celeron 533MHz FV80524RX533128
53%  ? 

CPU ID information for the Pentium III 500 MHz

Detailed characteristics of processor's internals, including x86 instruction set extensions and individual instructions, high- and low-level technologies, are listed below. This list was acquired from an actual Intel Pentium III 500 processor with the help of the x86 CPUID instruction. Any discrepancies between CPUID features and official specifications are likely due to some features being disabled in BIOS, or due to a bug in our CPUID decoding algorithm. Different steppings of Intel processors may also have slightly different features.

Search or browse all public submissions in our CPUID database.

Use our CPU identification tool to check features of your processor.

Submission details
Manufacturer:IntelMeasured frequency:501 MHz
CPU Family:Pentium IIIComment:valid.canardpc.com/show_oc.php?id=1943910
Processor Number:500 
Part number (supplied):80525PY500512Submitted by:NNH
Part number (guessed):
80525PY500512
Submitted on:
S-Spec Number:SL37DCWID version:0.4
General information
Vendor:GenuineIntel
Processor type:Original OEM Processor
CPUID signature:673
Family: 6 (06h)
Model: 7 (07h)
Stepping: 3 (03h)
TLB/Cache details:Data TLB: 4-KB Pages, 4-way set associative, 64 entries
Data TLB: 4-MB Pages, 4-way set associative, 8 entries
Instruction TLB: 4-KB Pages, 4-way set associative, 32 entries
Instruction TLB: 4-MB Pages, fully associative, 2 entries

Cache details
Cache: L1 data L1 instruction L2
Size: 16 KB 16 KB 512 KB
Associativity: 4-way set
associative		 4-way set
associative		 4-way set
associative
Line size: 32 bytes 32 bytes 32 bytes

Supported instructions
Instruction set extensionsAdditional instructions
MMX CMOV
SSE CMPXCHG8B
  FXSAVE/FXRSTORE
  SYSENTER/SYSEXIT

Integrated features and technologies
Major featuresOther features
On-chip Floating Point Unit 36-bit page-size extensions
  Debugging extensions
  Machine check architecture
  Machine check exception
  Memory-type range registers
  Model-specific registers
  Page attribute table
  Page global extension
  Page-size extensions (4MB pages)
  Physical address extensions
  Time stamp counter
  Virtual 8086-mode enhancements

CPUs, related to Intel Pentium III 80525PY500512 (500 MHz)

The list of related CPUs does not include all models. For the complete list, please see the related "P6" processors for slot 1 page.

Model Frequency L2
cache		 Multi-
processing		 TDP Features  
Intel Pentium III (Katmai) family, Slot 1
   Pentium III 80525PY450512 (450 MHz)450 MHz512 KB2 SSE>
   Pentium III 80525PY500512 (500 MHz)500 MHz512 KB2 SSE 
   Pentium III 533B533 MHz512 KB2 SSE>
   Pentium III 80525PY550512 (550 MHz)550 MHz512 KB2 SSE>
   Pentium III 600B600 MHz512 KB2 SSE>
   Pentium III 80525PY600512 (600 MHz)600 MHz512 KB2 SSE>
Other families, P6 micro-architecture, Slot 1
   Celeron 80524RX333128 (333 MHz)333 MHz128 KB  SSE>
   Celeron 80524RX366128 (366 MHz)366 MHz128 KB  SSE>
   Celeron 80524RX400128 (400 MHz)400 MHz128 KB  SSE>
   Celeron 80524RX433128 (433 MHz)433 MHz128 KB  SSE>
   Pentium II 80523PY450512 (450 MHz)450 MHz512 KB227.1WSSE>
   Pentium II 80523PY450512PE (450 MHz)450 MHz512 KB227.1WSSE>
   Pentium II 80523PY450512PE SECC2 (450 MHz)450 MHz512 KB227.1WSSE>
   Pentium III 80526PZ933256 (933 MHz)933 MHz256 KB2 SSE>
   Pentium III 1BGHz (Slot 1)1 GHz256 KB2 SSE>
   Pentium III 80526PY1000256 (1 GHz)1 GHz256 KB2 SSE>
 • Within each category, the CPUs are sorted from slower (at the top) to faster (at the bottom)
 • Background color of specs and features indicate whether they are better or worse than similar spec/feature of the Pentium III 80525PY500512 (500 MHz)
 • Click on the >  icon to compare any CPU in the table with the Intel Pentium III 80525PY500512 (500 MHz) (Javascript required).
 • Features abbreviations:
SSE - SSE instructions

Pictures (8)

Engineering sample - top view

500 MHz
512 KB L2 cache
Single Edge Contact cartridge (slot 1)

Pre-production sample
Top view		 Intel Pentium III 500 - 80525PY500512 (BX80525U500512 / BX80525U500512E)
Engineering sample - front view

500 MHz
512 KB L2 cache
Single Edge Contact cartridge (slot 1)

Pre-production sample
Front view		 Intel Pentium III 500 - 80525PY500512 (BX80525U500512 / BX80525U500512E)
500/512/100/2.0V S1 - Top view

500 MHz
512 KB L2 cache
Single Edge Contact cartridge 2 (slot 1)		 Intel Pentium III 500 - 80525PY500512 (BX80525U500512 / BX80525U500512E)
500/512/100/2.0V S1 - Front view

500 MHz
512 KB L2 cache
Single Edge Contact cartridge 2 (slot 1)		 Intel Pentium III 500 - 80525PY500512 (BX80525U500512 / BX80525U500512E)
500/512/100/2.0V S1 - Back view

500 MHz
512 KB L2 cache
Single Edge Contact cartridge 2 (slot 1)		 Intel Pentium III 500 - 80525PY500512 (BX80525U500512 / BX80525U500512E)
CPU Collector
2009-11-17 11:17:24
Posted by: dvthanh2000@yahoo.com

  		CPU Collector
INTEL CONFIDENTIAL 80525PY500512 Q814
2012-01-02 16:47:43
Posted by: gshv

Picture donated by "Nissan Dude"
 INTEL CONFIDENTIAL 80525PY500512 Q814
INTEL CONFIDENTIAL 80525PY500512 Q814
2012-01-02 16:48:43
Posted by: gshv

Picture donated by "Nissan Dude" 		INTEL CONFIDENTIAL 80525PY500512 Q814
Comments (6)

You're welcome to post suggestions, corrections, your own personal Intel Pentium III 500 MHz review, or your experience with the microprocessor. Please do not ask upgrade and troubleshooting questions, and do not start discussions.

Great Processor

2008-03-12 05:53:40
Posted by: g00fe

This was one of the early P3's but it was one of the best. I used it in my desktop until 2004 and didnt let me down the entire period I had it.It was expensive at launch but it lasted me for a long time because of how well engineered and durable it was

overclocking

2008-04-01 02:59:57
Posted by: lennchma

I wonder if anyone knows, how much P3 500MHz can be overclocked. I saw there in the chart that maximum core temperature could be 90°C.

Your picture

2008-04-03 17:06:51
Posted by: 4L3(

i think your picture of this cpu is wrong ...

Response: The picure is correct. Early Pentium III enigneering samples were shipped in Pentium II packages.

SL365 Part Number

2008-07-21 16:38:35
Posted by: Tokimemofan

Is it boxed or not? on the page for SL365 is says "This is a boxed processor with an attached fan heatsink" Yet the part number would appear to conflict with that (This chip has 2 Stickers with the Compaq Brand name on it)

Response: According to Intel SL365 is a boxed processor. I guess it could be shipped both as a boxed and OEM processor.

Cpu Z reading of my Pentium III 500 SL365

2010-10-28 01:38:31
Posted by: Nick

Cpu Z reading of my Pentium III 500 SL365

Good CPU

2014-04-02 06:41:00
Posted by: Rob

I bought one of these in 1999 for over $500. As someone else said here. It was a good CPU and had a long lifespan. but was strangled by its half speed cache. I tried over clocking it but could only get mine to 550mhz. After that it was too unstable.

Last modified: 25 Nov 2021
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