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Intel Pentium 4 2.8 GHz - RK80546PE0721M (BX80546PE2800E)

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Intel Pentium 4 2.8 GHz specifications

General information
TypeCPU / Microprocessor
Market segmentDesktop
FamilyIntel Pentium 4
CPU part numbers
  • RK80546PE0721M is an OEM/tray microprocessor
  • BX80546PE2800E is a boxed microprocessor
Frequency  ? 2800 MHz
Bus speed  ? 533 MHz
Clock multiplier  ? 21
Package478-pin Flip-Chip Pin Grid Array (FC-mPGA4)
1.378" x 1.378" (3.5 cm x 3.5 cm)
SocketSocket 478 / mPGA478B
S-spec numbers
  ES/QS processors
Part number Q00V QP11 QW78
  Production processors
Part number SL7D8 SL7E2 SL7K9 SL7PK SL88G SL8JX
RK80546PE0721M++ +++
Architecture / Microarchitecture
Processor core  ? Prescott
Core steppings  ? C0 (QW78, SL7D8, SL7K9)
D0 (QP11, SL7E2)
E0 (Q00V, SL7PK, SL88G)
G1 (SL8JX)
CPUIDsF33 (QW78, SL7D8, SL7K9)
F34 (QP11, SL7E2)
F41 (Q00V, SL7PK, SL88G)
F49 (SL8JX)
Manufacturing process0.09 micron
125 million transistors
Data width32 bit
The number of cores1
The number of threads1
Floating Point UnitIntegrated
Level 1 cache size  ? 16 KB data cache
Level 2 cache size  ? 1 MB 8-way set associative cache with error-correction code
  • MMX instructions
  • SSE / Streaming SIMD Extensions
  • SSE2 / Streaming SIMD Extensions 2
  • SSE3 / Streaming SIMD Extensions 3
Low power features
  • System Management mode
  • Auto HALT mode  ? 
  • Stop Grant mode  ? 
  • Sleep mode  ? 
Integrated peripherals / components
Integrated graphicsNone
Electrical / Thermal parameters
V core  ? 1.25V - 1.4V
Minimum/Maximum operating temperature  ? 5°C - 69.1°C
Minimum/Maximum power dissipation  ? 53.68 Watt (Stop Grant mode) / 100.39 Watt
Thermal Design Power  ? 89 Watt
Notes on Intel Pentium 4 2.8 GHz
  • Bus frequency is 133 MHz. Because the processor uses Quad Data Rate bus the effective bus speed is 533 MHz
  • This processor is labeled as Pentium 4 2.8A GHz. This is done to distinguish this part from Pentium 4 2.8 GHz processors with different set of features.

Detailed side-by-side comparison

For detailed comparision of the Intel Pentium 4 2.8 GHz and any other other chip from our CPU database type in a chip name and/or its partial specs:

You can specify any of the following: manufacturer name, family name, model number, part number, core name, socket name, operating frequency, bus speed, and the last level cache. Here are examples of searches: RK80546PE0721M, Intel Pentium 4 2.8GHz, Prescott Socket 478


Q: Can I upgrade my Intel Pentium 4 2.8 GHz CPU?
A: Probably yes. Processor compatibility is determined by your motherboard. Please see resource for CPU support list for your board.

Pentium 4 2.8 GHz Overclocking

Sorry, overclocking information is not available at this time.

CPU ID information for the Pentium 4 2.8 GHz

Our CPUID database contains 2 records for this microprocessor. See all submitted records.

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

NOTE: The 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 4 2.80 GHz CPU.

CPU Family:Pentium 4
Processor Number:2.80 GHz
Frequency:2793 MHz
Part number:
S-Spec Number:SL7PK
Comment:Prescott E0 1.3625 V
Submitted by:Neon
General information
Processor name (BIOS): Intel(R) Pentium(R) 4 CPU 2.80GHz
Logical processors:1
Processor type:Original OEM Processor
CPUID signature:F41
Family:15 (0Fh)
Model: 4 (04h)
Stepping: 1 (01h)
TLB/Cache details:Data TLB: 4-KB or 4-MB pages, fully associative, 64 entries
Instruction TLB: 4-KB, 2-MB or 4-MB pages, fully associative, 128 entries
No 2nd-level cache or, if processor contains a valid 2nd-level cache, no 3rd-level cache

Cache: L1 data L1 instruction L2
Size: 16 KB 12K uops 1 MB
Associativity: 8-way set
8-way set
8-way set
Line size: 64 bytes   64 bytes
Comments: Direct-mapped   Non-inclusive
Instruction set extensionsAdditional instructions
Major featuresOther features
On-chip Floating Point Unit 36-bit page-size extensions
  64-bit debug store
  Advanced programmable interrupt controller
  CPL qualified debug store
  Debug store
  Debugging extensions
  L1 context ID
  Machine check architecture
  Machine check exception
  Memory-type range registers
  Model-specific registers
  Page attribute table
  Page global extension
  Page-size extensions (4MB pages)
  Pending break enable
  Physical address extensions
  Thermal monitor
  Thermal monitor and software controlled clock facilities
  Time stamp counter
  Virtual 8086-mode enhancements
  xTPR Update Control

CPUs, related to Intel Pentium 4 2.8 GHz (RK80546PE0721M)

Model Frequency L2
TDP Features  
Intel Desktop Pentium 4 Prescott family, Socket 478
   Pentium 4 2.26 GHz (RK80546PE051512)2.26 GHz512 KB 89WSSE3>
   Pentium 4 2.4 GHz (B80546PE0561M)2.4 GHz1 MB 89WSSE3>
   Pentium 4 2.66 GHz (RK80546PE0671M)2.66 GHz1 MB 89WSSE3>
   Pentium 4 2.8 GHz (RK80546PE0721M)2.8 GHz1 MB 89WSSE3 
   Pentium 4 2.8 GHz (RK80546PG0721M)2.8 GHz1 MB 89WSSE3, HT>
   Pentium 4 3 GHz (RK80546PG0801M)3 GHz1 MB 89WSSE3, HT>
   Pentium 4 3.2 GHz (RK80546PG0881M)3.2 GHz1 MB 103WSSE3, HT>
   Pentium 4 3.4 GHz (RK80546PG0961M)3.4 GHz1 MB 103WSSE3, HT>
Intel Desktop Pentium 4 Prescott family, Netburst micro-architecture, Other sockets
   Pentium 4 6503.4 GHz2 MB 84WSSE3, NX, 64-bit, HT, SS>
   Pentium 4 570 / 570J3.8 GHz1 MB 115WSSE3, NX, HT>
   Pentium 4 5713.8 GHz1 MB 115WSSE3, NX, 64-bit, HT>
   Pentium 4 6603.6 GHz2 MB 115WSSE3, NX, 64-bit, HT, SS>
   Pentium 4 6623.6 GHz2 MB 115WSSE3, NX, 64-bit, HT, VT, SS>
   Pentium 4 662 (P)3.6 GHz2 MB 84WSSE3, NX, 64-bit, HT, VT, SS>
   Pentium 4 6703.8 GHz2 MB 115WSSE3, NX, 64-bit, HT, SS>
   Pentium 4 6723.8 GHz2 MB 115WSSE3, NX, 64-bit, HT, VT, SS>
Other families, Netburst micro-architecture, Socket 478
   Celeron 2.7 GHz (RK80532RC068128)2.7 GHz128 KB 66.8WSSE3>
   Celeron 2.8 GHz (RK80532RC072128)2.8 GHz128 KB 68.4WSSE3>
   Celeron D 3453.06 GHz256 KB 73WSSE3>
   Celeron D 3503.2 GHz256 KB 73WSSE3>
   Pentium 4 3.2 GHz (RK80532PG088512)3.2 GHz512 KB 82WSSE3, HT>
   Pentium 4 EE 3.2 GHz (RK80532PG0882M)3.2 GHz512 KB2 MB92.1WSSE3, HT>
   Pentium 4 3.4 GHz (RK80532PG096512)3.4 GHz512 KB 89WSSE3, HT>
   Pentium 4 EE 3.4 GHz (RK80532PG0962M)3.4 GHz512 KB2 MB102.9WSSE3, HT>
 • 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 4 2.8 GHz (RK80546PE0721M)
 • Click on the >  icon to compare any CPU in the table with the Intel Pentium 4 2.8 GHz (RK80546PE0721M) (Javascript required).
 • List of related CPUs is not complete.
 • Features abbreviations:
SSE3 - SSE3 instructions
NX - Virus Protection / Execute Disable bit
64-bit - AMD64 / EM64T technology
HT - Hyper-Threading
VT - Virtualization
SS - SpeedStep

Pictures (3)

2008-10-05 15:03:00
Posted by: Zdenek

2010-06-01 18:03:53
Posted by: Fuynfactory

2010-09-05 14:41:23
Posted by: xlemon

Comments (3)

You're welcome to post suggestions, corrections, your own personal Intel Pentium 4 2.8 GHz review, or your experience with the microprocessor. Please do not ask upgrade and troubleshooting questions, and do not start discussions.

Prescott P4 2.80/533/512

2007-03-23 16:28:37
Posted by: keko-computers

hi ,
this CPU needs a good motherbord
the only thing what i don`t like about the CPU
it`s very hard to overclock but if you
need a good P4 take this one!!!!!!!!

Prescott P4 2.80/533/1024

2008-01-20 19:07:19
Posted by: Deven Hawk

good overall proc but beware it lacks HT support


2009-12-29 16:51:15
Posted by: Björn Bergström

I had this CPU running at FSB:136 2.85Ghz
At FSB: 140 2.94 Ghz started OK, but could`nt
write any number ore letter at all.
I use Asus P4U800-X and air cooling.

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