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AMD Phenom II Dual-Core Mobile N640 - HMN640DCR23GM

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AMD Phenom II N640 specifications

General information
TypeCPU / Microprocessor
Market segmentMobile
FamilyAMD Phenom II Dual-Core Mobile
Model number  ? N640
CPU part number
  • HMN640DCR23GM is an OEM/tray microprocessor
Stepping codeNAEGC AE
Frequency  ? 2900 MHz
Bus speed  ? One 1800 MHz 16-bit HyperTransport link
Clock multiplier  ? 14.5
Package638-pin micro-PGA
AMD Package number30600
SocketSocket S1 (S1g4)
Size1.38" x 1.38" / 3.5cm x 3.5cm
Weight0.2oz / 5.6g
Introduction dateSeptember - October 2010
Architecture / Microarchitecture
Processor core  ? Champlain
Core stepping  ? DA-C3
Manufacturing process0.045 micron SOI
Data width64 bit
The number of cores2
The number of threads2
Floating Point UnitIntegrated
Level 1 cache size  ? 2 x 64 KB instruction caches
2 x 64 KB data caches
Level 2 cache size  ? 2 x 1 MB
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: DDR3-1333
Other peripheralsHyperTransport technology 3.0
Electrical / Thermal parameters
Thermal Design Power  ? 35 Watt

Detailed side-by-side comparison

For detailed comparision of the AMD N640 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: N640, HMN640DCR23GM, AMD Phenom II Dual-Core Mobile 2.9GHz, Champlain Socket S1 (S1g4)


Q: Is it possible to upgrade my N640 microprocessor?
A: Probably yes. CPU compatibility is determined by your motherboard. Please check website for CPU support list for your board.

Phenom II N640 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.

A glimpse of forthcoming mobile AMD CPUs
Jul 29, 2010: In May, AMD launched first 12 mobile microprocessors from Danube platform, from single core V series V120 and up to quad-core Phenom II X920 BE. "Maintenance and Service Guide" for HP ProBook 6450b / 6455b / 6550b / 6555b notebooks shows a few new models that will be a part of the second wave of AMD mobile microprocessors.

Compare AMD N640 benchmark results with all tested CPUs from one of the following families:

To compare this Phenom II Dual-Core Mobile CPU with any tested processor please proceed to

For additional benchmarks, comparing multi-threaded performance of this microprocessor with other Phenom II Dual-Core Mobile CPUs and the fastest AMD and Intel x86 chips, please visit AMD Phenom II N640 benchmarks page.

AMD N640 Benchmarks

The graphs below show up to 10 microprocessors with approximately the same level of integer (CPU), floating-point (FPU), SIMD and memory performance. 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. To find out how the N640 compares to other CPUs in specific benchmarks or in aggregate milti-threading performance please see benchmark tools section on the right.

Benchmarked processor

CPU ID:100F63
CPU vendor string:AuthenticAMD
CPU name string:AMD Phenom(tm) II N640 Dual-Core Processor

Integer performance

Part number   Result
Intel Core i3-2310M (PGA)  ? 
Intel Core i3-350M (PGA988)  ? 
Intel Pentium B970  ? 
AMD Phenom II N660  ? 
Intel Pentium P6300  ? 
AMD Phenom II N640  ? 
Intel Pentium B960  ? 
Intel Core i3-330M (PGA988)  ? 
AMD Phenom II N620  ? 
Intel Core 2 Duo T7600 (Socket M)  ? 
Intel Pentium P6200  ? 

Floating Point performance

Part number   Result
AMD Phenom II N850  ? 
Intel Core i3-330M (PGA988)  ? 
AMD Phenom II X640  ? 
AMD Phenom II N830  ? 
AMD Phenom II N660  ? 
AMD Phenom II N640  ? 
AMD Phenom II N620  ? 
AMD Phenom II P820  ? 
AMD Turion II N570  ? 
Intel Pentium 2020M  ? 
AMD Phenom II P650  ? 

MMX / SSE / SSE2 performance

Part number   Result
AMD Phenom II X640  ? 
AMD Phenom II N870  ? 
AMD Phenom II N850  ? 
AMD Phenom II N660  ? 
Intel Pentium 2020M  ? 
AMD Phenom II N640  ? 
AMD Phenom II N830  ? 
Intel Pentium B980  ? 
AMD Phenom II N620  ? 
Intel Pentium B970  ? 
AMD Turion II N570  ? 

Memory-intensive program performance

Part number   Result
Intel Pentium P6300  ? 
Intel Core 2 Duo T7500 (Socket P)  ? 
Intel Celeron B830  ? 
AMD Phenom II N660  ? 
Intel Pentium P6200  ? 
AMD Phenom II N640  ? 
AMD Phenom II N620  ? 
Intel Celeron B820  ? 
Intel Pentium P6100  ? 
Intel Core 2 Duo T7300 (Socket P)  ? 
AMD Phenom II N870  ? 

CPU ID information for the Phenom II N640

Our CPUID database contains 3 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 AMD Phenom II Dual-Core Mobile N640 CPU.

CPU Family:Phenom II Dual-Core Mobile
Model Number:N640
Frequency:2892 MHz
Part number:
Stepping Code:
Comment:Rev DA-c3
Submitted by:Dave
General information
Processor name (BIOS):AMD Phenom(tm) II N640 Dual-Core Processor
Logical processors:2
Processor type:Original OEM Processor
Core stepping:DA-C3
CPUID signature:100F63
Family:16 (010h)
Model: 6 (06h)
Stepping: 3 (03h)

Cache: L1 data L1 instruction L2
Size: 2 x 64 KB 2 x 64 KB 2 x 1 MB
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 N640

Model Cores /
Frequency L2
TDP Features  
AMD Phenom II Dual-Core Mobile family, Socket S1 (S1g4)
   Phenom II P6502 / 22.6 GHz2 MB25W>
   Phenom II N6202 / 22.8 GHz2 MB35W>
   Phenom II N6402 / 22.9 GHz2 MB35W 
   Phenom II N6602 / 23 GHz2 MB35W>
   Phenom II X6202 / 23.1 GHz2 MB45WUnlock>
   Phenom II X6402 / 23.2 GHz2 MB45WUnlock>
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 N8503 / 32.2 GHz1.5 MB35W>
   Phenom II N8703 / 32.3 GHz1.5 MB35W>
   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 N640
 • Click on the >  icon to compare any CPU in the table with the AMD Phenom II N640 (Javascript required).
 • List of related CPUs is not complete.
 • Features abbreviations:
Unlock - Unlocked multiplier

Pictures (3)

Phenom II N640 CPU pictures
2011-10-04 00:14:33
Posted by: gshv

Top view
Phenom II N640 CPU pictures
2011-10-04 00:14:51
Posted by: gshv

Bottom view
2012-02-01 11:41:35
Posted by: gshv

CPU-Z screenshot
Comments (0)

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