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AMD Phenom II Triple-Core Mobile P840 - HMP840SGR32GM

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AMD Phenom II P840 specifications

General information
TypeCPU / Microprocessor
Market segmentMobile
FamilyAMD Phenom II Triple-Core Mobile
Model number  ? P840
CPU part number
  • HMP840SGR32GM is an OEM/tray microprocessor
Stepping codeNADHC AD
Frequency  ? 1900 MHz
Bus speed  ? One 1800 MHz 16-bit HyperTransport link
Clock multiplier  ? 9.5
Package638-pin micro-PGA
AMD Package number30605
SocketSocket S1 (S1g4)
Size1.38" x 1.38" / 3.5cm x 3.5cm
Introduction dateSeptember - October 2010
Architecture / Microarchitecture
Processor core  ? Champlain
Manufacturing process0.045 micron SOI
Data width64 bit
The number of cores3
The number of threads3
Floating Point UnitIntegrated
Level 1 cache size  ? 3 x 64 KB instruction caches
3 x 64 KB data caches
Level 2 cache size  ? 3 x 512 KB
Level 3 cache sizeNone
  • MMX instructions
  • 3DNow! technology
  • SSE / Streaming SIMD Extensions
  • SSE2 / Streaming SIMD Extensions 2
  • SSE3 / Streaming SIMD Extensions 3
  • SSE4a  ? 
  • AMD64 / AMD 64-bit technology  ? 
  • EVP / Enhanced Virus Protection  ? 
  • VT / Virtualization technology  ? 
Low power featuresPowerNow!
Integrated peripherals / components
Integrated graphicsNone
Memory controller
  • The number of controllers: 1
    Memory channels: 2
    Supported memory: DDR3-1066
Other peripheralsHyperTransport technology 3.0
Electrical / Thermal parameters
Thermal Design Power  ? 25 Watt

Detailed side-by-side comparison

For detailed comparision of the AMD P840 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: P840, HMP840SGR32GM, AMD Phenom II Triple-Core Mobile 1.9GHz, Champlain Socket S1 (S1g4)


Q: I have an AMD Phenom II P840 CPU. Is it possible to upgrade it?
A: Probably yes. Processor compatibility is determined by your motherboard. Please check website for CPU support list for your board.

Phenom II P840 Overclocking

Sorry, overclocking information is not available at this time.

Related news stories

Notebooks with new AMD Phenom II CPUs (roundup)
Oct 13, 2010: It's been two weeks since brief specifications of new mobile Athlon microprocessors emerged on AMD website. In the past, we published a few articles describing characteristics of these microprocessors, along with details on notebook PCs, where the processors will be used. As a follow up to those articles, we decided to publish a list of currently available laptops with the new AMD mobile CPUs.

AMD publishes specifications of new mobile CPUs
Sep 30, 2010: At the end of July, and then again at the end of August, we discovered 10 upcoming AMD mobile microprocessors from Danube platform in specifications of HP ProBook 6455b / 6555b and HP Pavilion dv6 notebooks. Days ago, AMD added characteristics of all but one of these microprocessors to "The 2010 AMD Mainstream Platform" page. The Danube platform page includes 9 new models, comprising of power-efficient and standard-power microprocessors from single-core V140 to quad-core P940 and N950. We don't know yet whether this is a preparation step for upcoming launch, or an indication that the microprocessors are already launched. Even if the processors are not officially released yet, all of them are already shipped in numerous notebooks.

More future mobile AMD CPUs uncovered
Aug 25, 2010: In the course of past 4 weeks, we published two articles about the second wave of AMD mobile microprocessors for Danube platform. So far we discovered quad-core Phenom II N950, triple-core Phenom II N850, and dual-core Phenom II Mobile N640, Turion II P540 and Athlon II P340 microprocessors. We also reported on upcoming single-core V series V140. Not long ago Hewlett-Packard updated maintenance and service guide for HP Pavilion dv6 notebook, and added a few not-yet launched models - Phenom II X4 P940, Phenom II X3 P840, Turion II X2 N550 and Athlon II N350.

CPU ID information for the Phenom II P840

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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 AMD Phenom II Triple-Core Mobile P840 CPU.

CPU Family:Phenom II Triple-Core Mobile
Model Number:P840
Frequency:1895 MHz
Part number:
Stepping Code:
Comment:CPU in an HP C62-365CA
Submitted by:MaXStaR
General information
Processor name (BIOS):AMD Phenom(tm) II P840 Triple-Core Processor
Logical processors:3
Processor type:Original OEM Processor
Core stepping:BL-C3
CPUID signature:100F53
Family:16 (010h)
Model: 5 (05h)
Stepping: 3 (03h)

Cache: L1 data L1 instruction L2
Size: 3 x 64 KB 3 x 64 KB 3 x 512 KB
Associativity: 2-way set
2-way set
16-way set
Line size: 64 bytes 64 bytes 64 bytes
Lines per tag: 1 1 1
Instruction set extensionsAdditional instructions
MMX Advanced Bit manipulation
AMD extensions to MMX CLFLUSH
Extensions to 3DNow! CMPXCHG16B
  SKINIT/STGI support
Major featuresOther features
On-chip Floating Point Unit 1 GB large page support
64-bit / Intel 64 100MHz multiplier control
NX bit/XD-bit 128-bit SSE instructions
Secure Virtual Machine (Virtualization) 36-bit page-size extensions
PowerNow! / Cool'n'Quiet Advanced programmable interrupt controller
  Core multi-processing legacy mode
  Debugging extensions
  Extended APIC space
  FXSAVE/FXRSTOR optimizations
  Hardware P-state control
  Hardware thermal control
  Instruction based sampling
  LAHF/SAHF support in 64-bit mode
  LBR virtualization
  LOCK MOV CR0 means MOV CR8
  Machine check architecture
  Machine check exception
  Memory-type range registers
  Misaligned SSE mode
  Model-specific registers
  Nested page tables
  OS visible workaround
  Page attribute table
  Page global extension
  Page-size extensions (4MB pages)
  Physical address extensions
  SVM lock
  Software thermal control
  Support for NRIP save
  TSC rate is ensured to be invariant across all states
  Temperature sensor
  Time stamp counter
  Virtual 8086-mode enhancements
  Watchdog timer support

CPUs, related to AMD Phenom II P840

Model Cores /
Frequency L2
TDP Features  
AMD Phenom II Triple-Core Mobile family, Socket S1 (S1g4)
   Phenom II P8203 / 31.8 GHz1.5 MB25W>
   Phenom II P8403 / 31.9 GHz1.5 MB25W 
   Phenom II P8603 / 32 GHz1.5 MB25W>
   Phenom II N8303 / 32.1 GHz1.5 MB35W>
   Phenom II N8503 / 32.2 GHz1.5 MB35W>
   Phenom II N8703 / 32.3 GHz1.5 MB35W>
Other families, K10 micro-architecture, Socket S1 (S1g4)
   Sempron Mobile N1201 / 12.2 GHz512 KB25W>
   V Series V1401 / 12.3 GHz512 KB25W>
   V Series V1601 / 12.4 GHz512 KB25W>
   Athlon II N3702 / 22.5 GHz1 MB35W>
   Turion II N5502 / 22.6 GHz2 MB35W>
   Turion II N5702 / 22.7 GHz2 MB35W>
   Phenom II X6202 / 23.1 GHz2 MB45WUnlock>
   Phenom II X6402 / 23.2 GHz2 MB45WUnlock>
   Phenom II X9204 / 42.3 GHz2 MB45WUnlock>
   Phenom II X9404 / 42.4 GHz2 MB45WUnlock>
 • 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 Phenom II P840
 • Click on the >  icon to compare any CPU in the table with the AMD Phenom II P840 (Javascript required).
 • List of related CPUs is not complete.
 • Features abbreviations:
Unlock - Unlocked multiplier

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