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Intel Core i7-640M Mobile processor - CP80617004152AE

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Core i7-640M is a dual-core microprocessor from a Core i7 Mobile family of high-performance CPUs. First references to this model appeared in May 2010 in a leaked Intel roadmap. Preliminary price for the CPU was published at the end of June, and the first notebooks with the CPU were spotted in July. The CPU was released in September 2010 as part of a big launch of standard-, low- and ultra-low mobile Arrandale models, including Core i7-680UM, Core i5-460M / i5-560M / i5-560UM / i5-580M, Core i3-380M, Pentium P6100 / P6200, and Celeron P4600.

Core i7-640M is based on Arrandale core, which in turn is built 32nm Westmere micro-architecture. The Arrandale core combines two dies in one package: one die with two HyperThreading-enabled cores and a shared 4 MB level 3 cache, and another die with DDR3 memory controller and 500 MHz graphics controller. Each core in the i7-640M is clocked at 2.8 GHz, and has 256 KB L2 cache. The microprocessor supports all basic and advanced Arrandale features, like 64-bit instructions, SSE4, AES instructions, Trusted Execution Technology and Turbo Boost. The last feature improves CPU performance by increasing frequency of active cores. Maximum Turbo Boost frequency on this model is 3.46 GHz. The processor is produced in socket 988-compatible micro-PGA package. There is also a version of i7-640M model for micro-BGA package.

Before the launch, the Core i7-640M was sighted in specifications of Fujitsu LIFEBOOK S710, S760, NH570, E780 notebooks, Fujitsu LIFEBOOK T900 tablet PC, and HP ProBook 4520s and 4720s laptops.

Intel Core i7-640M specifications

General information
TypeCPU / Microprocessor
Market segmentMobile
FamilyIntel Core i7 Mobile
Model number  ? i7-640M
CPU part number
  • CP80617004152AE is an OEM/tray microprocessor
Frequency  ? 2800 MHz
Turbo frequency3467 MHz (1 core)
3200 MHz (2 cores)
Low power frequency1200 MHz
Bus speed  ? 2.5 GT/s DMI
Clock multiplier  ? 21
Package988-pin micro-FCPGA10 (rPGA988A)
SocketSocket G1 / rPGA988A
Size1.48" x 1.48" / 3.75cm x 3.75cm
Introduction dateSep 26, 2010
End-of-Life dateLast order date is April 5, 2012
Last shipment date is October 8, 2012
Price at introduction$346
S-spec numbers
  ES/QS processors Production processors
Part number Q4C9 SLBTN
Architecture / Microarchitecture
MicroarchitectureNehalem (Westmere)
Processor core  ? Arrandale
Core stepping  ? K0 (Q4C9, SLBTN)
CPUID20655 (Q4C9, SLBTN)
Manufacturing process0.032 micron
382 million transistors (CPU die)
177 million transistors (IMC / graphics die)
Die size81mm2 (CPU die)
114mm2 (IMC / graphics die)
Data width64 bit
The number of cores2
The number of threads4
Floating Point UnitIntegrated
Level 1 cache size  ? 2 x 32 KB instruction caches
2 x 32 KB data caches
Level 2 cache size  ? 2 x 256 KB
Level 3 cache size4 MB
Physical memory8 GB
MultiprocessingNot supported
  • MMX instructions
  • SSE / Streaming SIMD Extensions
  • SSE2 / Streaming SIMD Extensions 2
  • SSE3 / Streaming SIMD Extensions 3
  • SSSE3 / Supplemental Streaming SIMD Extensions 3
  • SSE4 / SSE4.1 + SSE4.2 / Streaming SIMD Extensions 4  ? 
  • AES / Advanced Encryption Standard instructions
  • EM64T / Extended Memory 64 technology / Intel 64  ? 
  • NX / XD / Execute disable bit  ? 
  • HT / Hyper-Threading technology  ? 
  • TBT / Turbo Boost technology  ? 
  • VT-x / Virtualization technology  ? 
  • VT-d / Virtualization for directed I/O
  • TXT / Trusted Execution technology
Low power featuresEnhanced SpeedStep technology  ? 
Integrated peripherals / components
Integrated graphics
  • GPU Type: HD (Nehalem)
    Base frequency (MHz): 500
    Maximum frequency (MHz): 766
    The number of supported displays: 2
Memory controller
  • The number of controllers: 1
    Memory channels: 2
    Supported memory: DDR3-800, DDR3-1066
    Maximum memory bandwidth (GB/s): 17.1
Other peripherals
  • Direct Media Interface
  • PCI Express 2.0 interface
Electrical / Thermal parameters
Maximum operating temperature  ? 105°C
Thermal Design Power  ? 35 Watt
Notes on Intel Core i7-640M
  • Graphics and memory controllers are located on a separate die, which is manufactured on 0.045 micron technology
  • The processor has the following security, data protection and/or software features: Intel vPro technology.
  • The CPU is compatible with Shader Model 4, along with DirectX 10.1 and OpenGL 2.1 APIs. OpenCL API is not supported.
  • The graphics unit has the following software features enabled: Intel Clear Video HD technology.

Detailed side-by-side comparison

For detailed comparision of the Intel i7-640M 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: i7-640M, CP80617004152AE, Intel Core i7 Mobile 2.8GHz, Arrandale Socket G1

Historical price chart

The chart below shows official prices of Intel Core i7-620M, i7-640M, i7-2620M and i7-2640M processors:

Historical official prices of Core i7-620M, i7-640M, i7-2620M and i7-2640M processors


Q: Can I upgrade my Intel Core i7-640M microprocessor?
A: Probably yes. CPU compatibility is determined by your motherboard. Please see website for CPU support list for your board.

Core i7-640M Overclocking

Sorry, overclocking information is not available at this time.

Related news stories

Intel discontinues 9 mobile Core i5 and i7 CPUs
Oct 11, 2011: Last week Intel published Product Change Notification, informing its customer about upcoming discontinuation of mobile microprocessors from Calpella platform. The change affects 9 Core i5 and Core i7 CPUs, including Core i5-560M, i5-560UM, i5-580M, Core i7-640M, i7-660LM, i7-680UM, i7-740QM, i7-840QM, and i7-940XM. The processors can be ordered until April 5, 2012, and they will be shipped until October 2012.

Intel launches new Core i7, Core i5 and Celeron mobile CPUs
Sep 26, 2010: Eight Core i7, Core i5 and Celeron branded microprocessors were added today by Intel to the price list. The new processors are aimed at budget and high-performance mobile markets, and include standard-, low- and ultra-low power models. The cheapest new CPUs, Celerons T3500 and P4600, are priced below $100, while more powerful models with HyperThreading, Turbo Boost and Vpro features cost as much as $346.

Core i7 Mobile i7-640M specifications
Aug 31, 2010: In the past one and half months, we covered most of mobile Intel microprocessors scheduled to launch in the third quarter of this year. The only processors, that we haven't described in detail, are high-performance standard-power Core i7-640M, and low- and ultra-low power Core i7-660LM, i7-680UM and i5-560UM CPUs. Today, we present all information on the Core i7-640M CPU known to us.

Future Intel mobile CPUs spotted in notebooks
Jul 23, 2010: As you may already know from publications on our and other hardware news sites, in the third and forth quarters of this year Intel will launch the next wave of mobile Arrandale-based CPUs: Core i7-640M, Core i5 models i5-560M and i5-580M, Celeron P4600, as well as Penryn-based Celeron T3500. Yesterday we reported on two other models that maybe launched at about the same time: Core i3-380M and Core i5-460M.

CPU ID information for the Core i7-640M

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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 Core i7 Mobile i7-640M CPU.

CPU Family:Core i7 Mobile
Processor Number:i7-640M
Frequency:2793 MHz
Part number:
S-Spec Number:
Submitted by:Perera
General information
Processor name (BIOS):Intel(R) Core(TM) i7 CPU M 640 @ 2.80GHz
Logical processors:4
Processor type:Original OEM Processor
CPUID signature:20655
Family: 6 (06h)
Model:37 (025h)
Stepping: 5 (05h)
TLB/Cache details:64-byte Prefetching
Data TLB0: 2-MB or 4-MB pages, 4-way set associative, 32 entries
Data TLB: 4-KB Pages, 4-way set associative, 64 entries
Instruction TLB: 2-MB or 4-MB pages, fully associative, 7 entries
Instruction TLB: 4-KB pages, 4-way set associative, 64 entries
Shared 2nd-level TLB: 4 KB pages, 4-way set associative, 512 entries

Cache: L1 data L1 instruction L2 L3
Size: 2 x 32 KB 2 x 32 KB 2 x 256 KB 4 MB
Associativity: 8-way set
4-way set
8-way set
16-way set
Line size: 64 bytes 64 bytes 64 bytes 64 bytes
Comments: Direct-mapped Direct-mapped Non-inclusive
Shared between all cores
Instruction set extensionsAdditional instructions
Major featuresOther features
On-chip Floating Point Unit 36-bit page-size extensions
64-bit / Intel 64 64-bit debug store
NX bit/XD-bit Advanced programmable interrupt controller
Hyper-Threading Technology CPL qualified debug store
Intel Virtualization Debug store
Intel Trusted Execution technology Debugging extensions
Turbo Boost Digital Thermal Sensor capability
Enhanced SpeedStep LAHF/SAHF support in 64-bit mode
  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
  Perfmon and Debug capability
  Physical address extensions
  Process context identifiers
  TSC rate is ensured to be invariant across all states
  Thermal monitor
  Thermal monitor 2
  Thermal monitor and software controlled clock facilities
  Time stamp counter
  Virtual 8086-mode enhancements
  xTPR Update Control

CPUs, related to Intel Core i7-640M (PGA988)

Model Cores /
Frequency Turbo
TDP Features  
Intel Core i7 Mobile family, Socket G1
   Core i7-620M (PGA988)2 / 42.66 GHz3.33 GHz4 MB35WSSE4, AES, HT, VT, TXT, TBT>
   Core i7-640M (PGA988)2 / 42.8 GHz3.46 GHz4 MB35WSSE4, AES, HT, VT, TXT, TBT 
   Core i7-720QM4 / 81.6 GHz2.8 GHz6 MB45WSSE4, AES, HT, VT, TXT, TBT>
   Core i7-740QM4 / 81.73 GHz2.93 GHz6 MB45WSSE4, AES, HT, VT, TXT, TBT>
   Core i7-820QM4 / 81.73 GHz3.06 GHz8 MB45WSSE4, AES, HT, VT, TXT, TBT>
   Core i7-840QM4 / 81.86 GHz3.2 GHz8 MB45WSSE4, AES, HT, VT, TXT, TBT>
Intel Core i7 Mobile family, Nehalem micro-architecture, Other sockets
   Core i7-640UM2 / 41.2 GHz2.26 GHz4 MB18WSSE4, AES, HT, VT, TXT, TBT>
   Core i7-660UM2 / 41.33 GHz2.4 GHz4 MB18WSSE4, AES, HT, VT, TXT, TBT>
   Core I7-680UM2 / 41.46 GHz2.53 GHz4 MB18WSSE4, AES, HT, VT, TXT, TBT>
   Core i7-620LM2 / 42 GHz2.8 GHz4 MB25WSSE4, AES, HT, VT, TXT, TBT>
   Core i7-640LM2 / 42.13 GHz2.93 GHz4 MB25WSSE4, AES, HT, VT, TXT, TBT>
   Core I7-660LM2 / 42.26 GHz3.06 GHz4 MB25WSSE4, AES, HT, VT, TXT, TBT>
   Core i7-620M (BGA)2 / 42.66 GHz3.33 GHz4 MB35WSSE4, AES, HT, VT, TXT, TBT>
   Core i7-640M (BGA)2 / 42.8 GHz3.46 GHz4 MB37WSSE4, AES, HT, VT, TXT, TBT>
Other families, Nehalem micro-architecture, Socket G1
   Celeron P45002 / 21.86 GHz 2 MB35WSSE4, AES, HT, VT, TXT, TBT>
   Celeron P46002 / 22 GHz 2 MB35WSSE4, AES, HT, VT, TXT, TBT>
   Pentium P62002 / 22.13 GHz 3 MB35WSSE4, AES, HT, VT, TXT, TBT>
   Pentium P63002 / 22.26 GHz 3 MB35WSSE4, AES, HT, VT, TXT, TBT>
   Core i3-380M (PGA988)2 / 42.53 GHz 3 MB35WSSE4, AES, HT, VT, TXT, TBT>
   Core i3-390M (PGA988)2 / 42.66 GHz 3 MB35WSSE4, AES, HT, VT, TXT, TBT>
   Core i5-560M (PGA988)2 / 42.66 GHz3.2 GHz3 MB35WSSE4, AES, HT, VT, TXT, TBT>
   Core i5-580M (PGA988)2 / 42.66 GHz3.33 GHz3 MB35WSSE4, AES, HT, VT, TXT, TBT>
   Core i7-920XM4 / 82 GHz3.2 GHz8 MB55WSSE4, AES, HT, VT, TXT, TBT, Unlock>
   Core i7-940XM4 / 82.13 GHz3.33 GHz8 MB55WSSE4, AES, HT, VT, TXT, TBT, Unlock>
 • 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 Core i7-640M (PGA988)
 • Click on the >  icon to compare any CPU in the table with the Intel Core i7-640M (PGA988) (Javascript required).
 • List of related CPUs is not complete.
 • Features abbreviations:
SSE4 - SSE4 instructions
AES - AES instructions
HT - Hyper-Threading
VT - Virtualization
TXT - Trusted Execution
TBT - Dynamic Acceleration / Turbo Boost
Unlock - Unlocked multiplier

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