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AMD Phenom II Triple-Core Mobile N870 - HMN870DCR32GM

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At this time, December 2010, AMD Phenom II N870 is the fastest mobile microprocessor with three cores. The processor is based on enhanced K10 microarchitecture, and combines 4 cores (one of them is disabled), and DDR3-capable memory controller on one die. The N870 operates at 2.3 GHz, or 100 MHz and 200 MHz faster than earlier N850 and N830 models from the same family. The triple-core Phenom II employs two-level cache architecture, where each CPU core includes 128 KB level 1 and 512 KB level 2 caches. Being a high-performance microprocessor, the N870 includes all features that can be found in other Phenom II models:

  • Accommodates full 128-bit Floating Point Unit, which results in better SSE performance
  • Has increased memory bandwidth due to faster DDR3-1333 memory support. This ultimately translates into higher performance in memory-intensive applications.
  • AMD64 instruction set extension allows this CPU to run 64-bit operating systems.
  • Enhanced Virus Protection prevents computer virus infections by blocking certain types of exploits.
  • Virtualization technology speeds up execution of user and system software in virtual environments.

AMD Phenom II N870 CPU contains PowerNow! technology, as well as several other low-power features, which, combined with processor's low frequency and presumably low core voltage, helps this model to achieve 35 Watt power rating. The Phenom II N870 is manufactured in 638-pin micro-PGA package, that requires socket S1. The processor fits all variations of socket S1, but works only in S1g4 revision of the socket.

Common perception "the most expensive processor performs the best", which more often than not works for desktop CPUs, is not true for mobile AMD microprocessors. While triple-core N870 will outrun dual-core Phenom II or Turion II counterparts in multi-threaded applications, they will not be as good in single- and dual-threaded tasks, and you may end up not just wasting your money, but also getting worse performance. Therefore, be careful when choosing this processor for new laptop, or as an upgrade CPU for existing laptop. An easy way to determine, whether the Phenom II X3 will work for you or not, is to run your favorite applications on a multi-core computer, and watch closely CPU usage for all cores. The Phenom II N870 should be good if the system frequently uses more than two cores.

AMD Phenom II N870 specifications

General information
TypeCPU / Microprocessor
Market segmentMobile
FamilyAMD Phenom II Triple-Core Mobile
Model number  ? N870
CPU part number
  • HMN870DCR32GM is an OEM/tray microprocessor
Stepping codeNADIC AD
Frequency  ? 2300 MHz
Bus speed  ? One 1800 MHz 16-bit HyperTransport link
Clock multiplier  ? 11.5
Package638-pin micro-PGA
AMD Package number30605
SocketSocket S1 (S1g4)
Size1.38" x 1.38" / 3.5cm x 3.5cm
Weight0.2oz / 5.8g
Introduction dateJan 4, 2011
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: DDR3-1333
Other peripheralsHyperTransport technology 3.0
Electrical / Thermal parameters
Thermal Design Power  ? 35 Watt

Popular Phenom II N870 comparisons:

Detailed side-by-side comparison

For detailed comparision of the AMD N870 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: N870, HMN870DCR32GM, AMD Phenom II Triple-Core Mobile 2.3GHz, Champlain Socket S1 (S1g4)


Q: Is it possible to upgrade my Phenom II N870 CPU?
A: Probably yes. Processor compatibility is determined by your motherboard. Please check resource for CPU support list for your board.

Phenom II N870 Overclocking

Sorry, overclocking information is not available at this time.

Related news stories

AMD introduces new mobile microprocessors
Jan 05, 2011: In the past months we posted a series of articles dedicated to upcoming refresh of mainstream and ultrathin 2010 mobile platforms. If you followed the stories then you may know that a number of not yet released processors was spotted in specifications of Acer, Dell, HP and Lenovo notebooks, and some of these notebooks already materialized in retail stores. Today, AMD added new mobile models to 2010 AMD Mainstream Platform and 2010 AMD Ultrathin Platform pages, and updated AMD product pages as well.

HP service manual reveals new AMD mobile processors
Dec 16, 2010: Yesterday we published a story revealing not-yet officially released Phenom II Triple-Core N870 microprocessor in Dell Inspiron M501R notebook. We suspected that that processor would be a part of future refresh of AMD mainstream "Danube" platform. Today we found more mobile processors from the upcoming refresh. Hewlett Packard recently updated "Maintenance and Service Guide" for Compaq Presario CQ42 and HP G42 notebooks, and added unannounced AMD model numbers and their brief specifications.

Dell China ships Inspiron 501R with Phenom II N870 CPU
Dec 15, 2010: As the launch of Intel mobile Sandy Bridge microprocessors is getting imminent, we expect that AMD will respond to it with new versions of their low-power and mainstream mobile processors. Earlier this week we published two stories covering new models from AMD Ultrathin 2010 platform, Athlon II Neo K145, and Turion II Neo K645 and K685. AMD mainstream 2010 platform is getting refreshed too, and one of the new processors for that platform is a triple-core Phenom II N870.

Compare AMD N870 benchmark results with all tested CPUs from one of the following families:

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

For additional benchmarks, comparing multi-threaded performance of this microprocessor with other Phenom II Triple-Core Mobile CPUs and the fastest AMD and Intel x86 chips, please visit AMD Phenom II N870 benchmarks page.

AMD N870 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 N870 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:100F53
CPU vendor string:AuthenticAMD
CPU name string:AMD Phenom(tm) II N870 Triple-Core Processor

Integer performance

Part number   Result
Intel Core i5-450M (PGA988)  ? 
Intel Core i3-390M (PGA988)  ? 
Intel Core i3-3120M (PGA)  ? 
AMD Athlon II X3 405e (rev. C2)  ? 
AMD Athlon II X3 405e (rev. C3)  ? 
AMD Phenom II N870  ? 
AMD Phenom II P940  ? 
Intel Core i5-430M (PGA988)  ? 
Intel Core i3-3110M (PGA)  ? 
Intel Core i3-380M (PGA988)  ? 
Intel Core i3-2350M (PGA)  ? 

Floating Point performance

Part number   Result
Intel Core i3-350M (PGA988)  ? 
Intel Core i5-410M (PGA988)  ? 
Intel Core i3-2330M (PGA)  ? 
AMD Athlon II X3 405e (rev. C3)  ? 
AMD Athlon II X3 405e (rev. C2)  ? 
AMD Phenom II N870  ? 
AMD Phenom II P940  ? 
AMD Athlon II X3 400e  ? 
Intel Core i3-2310M (PGA)  ? 
AMD Phenom II N850  ? 
Intel Core i3-330M (PGA988)  ? 

MMX / SSE / SSE2 performance

Part number   Result
AMD Phenom II X640  ? 
Intel Core 2GHz CP80617003747AA  ? 
Intel Pentium 2020M  ? 
AMD Athlon II X3 405e (rev. C2)  ? 
AMD Athlon II X3 405e (rev. C3)  ? 
AMD Phenom II N870  ? 
AMD Phenom II N660  ? 
AMD Phenom II P960  ? 
Intel Pentium B980  ? 
AMD Athlon II X3 400e  ? 
AMD Phenom II N850  ? 

Memory-intensive program performance

Part number   Result
AMD Athlon II X3 400e  ? 
AMD Phenom II P650  ? 
Intel Pentium P6000  ? 
Intel Celeron B810  ? 
Intel Celeron B815  ? 
AMD Phenom II N870  ? 
AMD Phenom II N930  ? 
AMD Phenom II N850  ? 
AMD A6-4400M  ? 
AMD Phenom II N830  ? 
Intel Celeron B800  ? 

CPU ID information for the Phenom II N870

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 Triple-Core Mobile N870 CPU.

CPU Family:Phenom II Triple-Core Mobile
Model Number:N870
Frequency:2294 MHz
Part number:
Stepping Code:
Comment:Acer 5552g
Submitted by:Amny
General information
Processor name (BIOS):AMD Phenom(tm) II N870 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 N870

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 N870
 • Click on the >  icon to compare any CPU in the table with the AMD Phenom II N870 (Javascript required).
 • List of related CPUs is not complete.
 • Features abbreviations:
Unlock - Unlocked multiplier

Pictures (3)

2012-02-25 15:01:21
Posted by: gshv

Top view. Stepping code is NADIC AD. The processor was manufactured in the second half of September 2010. Package number (the number in the upper right corner) is 30605, which is standard for Phenom II triple- and quad-core CPUs.
2012-02-25 15:02:01
Posted by: gshv

Bottom view.
2012-06-18 14:33:37
Posted by: gshv

CPU-Z screenshot
Comments (0)

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