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Intel Pentium III-S 1266 - RK80530KZ012512 / RK80530KZ01251E (BX80530C1266512)

CPU » Intel » Pentium III families » Pentium III (Tualatin) » 1.26GHz-S

Specifications

General information
TypeCPU / Microprocessor
Market segmentDesktop
FamilyIntel Pentium III
Model number  ? 1.26GHz-S
CPU part numbersRK80530KZ012512 is an OEM/tray microprocessor
RK80530KZ01251E is an OEM/tray microprocessor
BX80530C1266512 is a boxed microprocessor
Frequency  ? 1267 MHz
Bus speed  ? 133 MHz
Clock multiplier  ? 9.5
Package370-pin Flip-Chip Pin Grid Array with heatspreader (FC-PGA2)
1.95" x 1.95" (4.95 cm x 4.95 cm)
SocketSocket 370
 
S-spec numbers
  ES/QS processors Production processors
Part number QKF7 SL5LW SL5QL SL6BX SL6JN
BX80530C1266512 ++++
RK80530KZ012512+ ++ 
RK80530KZ01251E  +  
 
Architecture / Microarchitecture
MicroarchitectureP6
Processor core  ? Tualatin
Core steppings  ? tA1 (SL5LW, SL5QL)
tB1 (QKF7, SL6BX)
CPUIDs6B1 (SL5LW, SL5QL)
6B4 (QKF7, SL6BX)
Manufacturing process0.13 micron
Data width32 bit
The number of cores1
The number of threads1
Floating Point UnitIntegrated
Level 1 cache size  ? 16 KB instruction cache
16 KB data cache
Level 2 cache size  ? Full-speed on-die 8-way set associative 512 KB cache
MultiprocessingUp to 2 processors
Features
  • MMX technology
  • SSE instructions
Low power features
  • AutoHALT powerdown state
  • Stop Grant state  ? 
  • Sleep state  ? 
  • Deep Sleep state  ? 
 
Electrical/Thermal parameters
V core  ? 1.45V
Minimum/Maximum operating temperature  ? 0°C - 69°C
Minimum/Maximum power dissipation  ? 20.3 Watt (Stop Grant state) / 29.5 Watt (CPUID 06B0h and 06B1h)
20.3 Watt (Stop Grant state) / 30.4 Watt (CPUID 06B4h)
  CPUs, related to Intel Pentium III 1.26GHz-S  

Model Freq. L2
cache		 Multi-
processing		 TDP Features
Intel Pentium III (Tualatin) family, Socket 370
   Intel Pentium III 1 GHz (RK80530PZ001256)1 GHz256 KB1 
   Intel Pentium III 1 GHz (RK80530KZ001512)1 GHz512 KB2 
   Intel Pentium III 1.13 GHz (RK80530PZ006256)1.13 GHz256 KB1 
   Intel Pentium III 1.13GHz-S1.13 GHz512 KB2 
   Intel Pentium III 1.2 GHz (RK80530PZ009256)1.2 GHz256 KB1 
   Intel Pentium III 1.33 GHz (RK80530PZ014256)1.33 GHz256 KB1 
   Intel Pentium III 1.4 GHz (RK80530PZ017256)1.4 GHz256 KB1 
   Intel Pentium III 1.4GHz-S1.4 GHz512 KB2 
Intel Pentium III (Tualatin) family, P6 micro-architecture, Other sockets
   Intel Pentium III 800MHz-S800 MHz512 KB2 
   Intel Pentium III 933MHz-S933 MHz512 KB2 
   Intel Pentium III 1 GHz (RJ80530KZ001512)1 GHz512 KB2 
Other families, P6 micro-architecture, Socket 370
   Intel Pentium III 1 GHz (RB80526PY001256)1 GHz256 KB  
   Intel Pentium III 1.1 GHz (RB80526PY005256)1.1 GHz256 KB  
   Intel Pentium III 1.13 GHz (RK80526PZ006256)1.13 GHz256 KB  
   Intel Pentium III 1.13 GHz (RK80533PZ006256)1.13 GHz256 KB 29.1 Watt
   Intel Celeron 1.2 GHz (RK80530RY009256)1.2 GHz256 KB  
   Intel Celeron 1.3 GHz (RK80530RY013256)1.3 GHz256 KB  
   Intel Celeron 1.4 GHz (RK80530RY017256)1.4 GHz256 KB  
   Intel Celeron 1.5 GHz (RK80530RY021256)1.5 GHz256 KB  

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

 • List of related CPUs is not complete.

Pictures (1)

Picture of this chip
2009-09-19 08:32:20
Posted by: Tech^Cellfish

Spare part for an HP/Compaq Proliant server. 		Picture of this chip

CPU ID (1)

NOTE: CPU ID information below was taken from one CPU and may include features that are not present in all different steppings of the Intel Pentium III 1266 MHz CPU.

Manufacturer:Intel
CPU Family:Pentium III
Processor Number:1266 MHz
Frequency:1273 MHz
Part number:
RK80530KZ012512
S-Spec Number:
Comment:
Submitted by:
General information
Vendor:GenuineIntel
Processor name (BIOS):Intel(R) Pentium(R) III CPU family 1266MHz
Processor type:Original OEM Processor
CPUID signature:6B1
Family: 6 (06h)
Model:11 (0Bh)
Stepping: 1 (01h)
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: L1 data L1 instruction L2
Size: 16 KB 16 KB 512 KB
Associativity: 4-way set
associative		 4-way set
associative		 8-way set
associative
Line size: 32 bytes 32 bytes 32 bytes
 
Instruction set extensionsAdditional instructions
MMX CMOV
SSE CMPXCHG8B
  FXSAVE/FXRSTORE
  SYSENTER/SYSEXIT
 
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

Comments (2)

P III-S vs P4 533fsb

2008-02-03 13:23:25
Posted by: Erik

I have a Tyan motherboard with two of these CPU:s
One Ghz RAM. Running Windows XP Pro on both computers. Compared to P4 2.4Ghz, with the same amount of RAM. Both running UATA-100 disks.

In speed to me in seems they are equal

Server

2011-03-05 10:51:52
Posted by: Burling J.

I am running an old super-micro server PT3DLR with two of these processors, 2 Gigs of 133 ECC ram and XP Pro. Runs great.

Last modified: 9 Feb 2012
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