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Intel Core i7-740QM Mobile processor - BY80607005259AA / BX80607I7740QM

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Core i7-740QM is the second model from the i7-7xx series of high-performance microprocessors. At this time, June 2010, the processor is not officially launched yet, although all major laptop manufacturers already announced laptops based on this CPU. One of the first spotted laptops with the i7-740QM was HP Envy 17, followed by Dell Studio 14 notebook. Other manufacturers, who prepared new laptop models with the CPU, are Toshiba X505-Q887, X505-Q888 and X505-Q890 notebooks, Hewlett Packard 8540p, 8540w and 8740w laptops, EUROCOM X8100 Leopard, Mouse Computer Company MB-G811B, Sony VAIO VPC-F127HG/BI, and Fujitsu Celsius H700 laptops.

The Core i7-740QM is based on 45 nm Clarksfield core, which is built on Nehalem micro-architecture. Like other Core i7 Mobile models, the 740QM utilizes two different interfaces to access memory and peripheral devices. Instead of Front Side Bus interface, that was used in older processors for communications between the motherboard and the CPU, the i7-740QM uses integrated memory controller for memory accesses, and Direct Media Interface to talk to other devices. Integrated memory controller can work with two DD3 memory channels, which doubles its available bandwidth and increases CPU performance to some extent. Both the memory controller and Direct Media interface are located on the same die as four CPU cores. The die also contains 6 MB level 3 cache, which is 2 MB less than L3 cache on more powerful i7-8xx line of mobile microprocessors. Each CPU core has its own level 1 (L1) and level 2 (L2) caches, and those are used to store only the data used by the core. Level 3 cache, on the other side, is shared between all cores, and stores data for all of them. Even more, the L3 cache is inclusive, i.e. it also stores data located in each core's L1 and L2 caches. This make it easier for any core to find previously cached data, even if it was cached by another core. The disadvantage of this method is in reduced effective size of the L3 cache, as some cache data is duplicated in L1/L2 and L3 caches.

The Intel Core i7-740QM CPU is clocked at 1.73 GHz, or 133 MHz faster than slower i7-720QM model. The processor has two features that may temporarily modify clock frequency. Turbo Boost feature can increase the frequency when the processor is running within its thermal limits, and when maximum performance is required. How big is the boost depends on the number of active cores. The frequency is boosted by 133 MHz when 3 or all 4 cores are active, up to 800 MHz when two cores are active, and up to 1.2 GHz when only one core is active. Please note that these are maximum allowed frequency increases. The frequency boost may be lower if the processor is operating close to its Thermal Design Power (TDP), or close to its maximum temperature. Another feature that may temporary change CPU frequency is Enhanced SpeepStep technology. The primary goal of this feature is to preserve battery power at the expense of performance, and the SpeedStep technology achieves this by reducing core frequency and core voltage. CPU's Thermal Design Power (TDP) Power in this mode is lowered to 35 Watt. TDP of the i7-740QM under normal operating conditions is 45 Watt.

The Core i7-740QM CPU uses a few features that became standard on all modern processors. The processor includes 64-bit instruction set and 64-bit mode. In this mode the processor can run 64-bit operating system and applications, that, due to faster data access and additional registers, have slightly better performance than 32-bit applications. The processor also includes SSEx instructions from SSE to SSE4, that accelerate processing of certain types of data. Virtualization technology can be used to run an operating system or an application in a virtual environment. In addition to these now standard features, the processor supports Hyper-Threading technology. This technology adds additional modules to each CPU core, that permits the core to execute two threads at once. Please note that, while the number of threads is doubled, the performance is only marginally increased. HyperThreading boosts CPU performance by less than 20% in multi-threaded applications, although there is a small number of applications which can be boosted by as much as 50%.

Intel Core i7-740QM is packaged into 988-pin micro-PGA package, and requires socket 988 motherboards.

Intel Core i7-740QM specifications

General information
TypeCPU / Microprocessor
Market segmentMobile
FamilyIntel Core i7 Mobile
Model number  ? i7-740QM
CPU part numbers
  • BY80607005259AA is an OEM/tray microprocessor
  • BX80607I7740QM is a boxed microprocessor
Frequency  ? 1733 MHz
Turbo frequency2933 MHz
Bus speed  ? 2.5 GT/s DMI
Clock multiplier  ? 13
Package988-pin micro-FCPGA8 (rPGA988A)
SocketSocket G1 / rPGA988A
Size1.48" x 1.48" / 3.75cm x 3.75cm (CPU)
Introduction dateJune 20, 2010
End-of-Life dateLast order date is April 5, 2012
Last shipment date is October 8, 2012
Price at introduction$378
S-spec numbers
  ES/QS processors Production processors
Part number Q3SH SLBQG
Architecture / Microarchitecture
MicroarchitectureNehalem (Nehalem)
Processor core  ? Clarksfield
Core stepping  ? B1 (Q3SH, SLBQG)
Manufacturing process0.045 micron
774 million transistors
Die size296mm2
Data width64 bit
The number of cores4
The number of threads8
Floating Point UnitIntegrated
Level 1 cache size  ? 4 x 32 KB instruction caches
4 x 32 KB data caches
Level 2 cache size  ? 4 x 256 KB
Level 3 cache size6 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  ? 
  • EM64T / Extended Memory 64 technology / Intel 64  ? 
  • HT / Hyper-Threading technology  ? 
  • TBT / Turbo Boost technology  ? 
  • VT-x / Virtualization technology  ? 
  • VT-d / Virtualization for directed I/O
  • NX / XD / Execute disable bit  ? 
  • TXT / Trusted Execution technology
Low power featuresEnhanced SpeedStep technology  ? 
Integrated peripherals / components
Integrated graphicsNone
Memory controller
  • The number of controllers: 1
    Memory channels: 2
    Supported memory: DDR3-1066, DDR3-1333
    Maximum memory bandwidth (GB/s): 21.3
Other peripherals
  • Direct Media Interface
  • PCI Express 2.0 interface
Electrical / Thermal parameters
Minimum/Maximum operating temperature  ? 0°C - 100°C
Thermal Design Power  ? 45 Watt
Notes on Intel Core i7-740QM
  • The processor has the following security, data protection and/or software features: Intel vPro technology.

Detailed side-by-side comparison

For detailed comparision of the Intel i7-740QM 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: i7-740QM, BY80607005259AA, Intel Core i7 Mobile 1.733GHz, Clarksfield Socket G1

Historical price chart

The chart below shows official prices of Intel Core i7-720QM, i7-740QM and i7-820QM processors:

Historical official prices of Core i7-720QM, i7-740QM and i7-820QM processors


Q: I have an Intel i7-740QM processor. Can I upgrade it?
A: Probably yes. CPU compatibility is determined by your motherboard. Please see website for CPU support list for your board.

Core i7-740QM 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.

New Core i7 Mobile CPUs introduced
Jun 21, 2010: Today Intel updated CPU price list, adding three new Core i7 Mobile microprocessors. The launch date matched our expectations, that were based on new notebook release dates, as was explained in the last week's "New Intel Mobile CPUs to launch next week?" story.

New Intel Mobile CPUs to launch next week?
Jun 17, 2010: While looking for more information to update "Upcoming Core i7 Mobile microprocessors" new story, posted 2 days ago, I stumbled on two recent notebook announcements. Toshiba Satellite A660, A665, C640, C650, M640, M645, L630, L640, L650, L670, T210, T230 series laptops are going to launch this Sunday.

Upcoming Core i7 Mobile microprocessors
Jun 15, 2010: As was reported on our site, and widely reported on the net, in the third quarter Intel is planning to release new Core i7 Mobile microprocessors with model number i7-740QM and i7-840QM, and Core i7 Mobile Extreme i7-940XM CPU. These models were referenced in a recently leaked Intel mobile roadmap.

More notebooks with upcoming Intel Core i3 / i5 / i7 processors
May 26, 2010: On May 21 we posted specifications of new mobile microprocessors, as well as names of a few notebooks where these processors will be shipped. As more and more information about new notebooks with upcoming CPUs appears on the net, we decided to provide additional information in this news story.

Specifications of upcoming Intel Mobile microprocessors
May 21, 2010: Using different sources, we compiled specifications of upcoming Intel mobile CPUs. These processors are Core i3-370M, Core i5-450M, Core i7-740QM, Core i7-840QM and Core Extreme Edition i7-940XM. We also discovered two Pentium Mobile models - P6000 and P6100.

CPU ID information for the Core i7-740QM

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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 Intel Core i7 Mobile i7-740QM CPU.

CPU Family:Core i7 Mobile
Processor Number:i7-740QM
Frequency:1729 MHz
Part number:
S-Spec Number:
Submitted by:
General information
Processor name (BIOS):Intel(R) Core(TM) i7 CPU Q 740 @ 1.73GHz
Logical processors:8
Processor type:Original OEM Processor
CPUID signature:106E5
Family: 6 (06h)
Model:30 (01Eh)
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: 4 x 32 KB 4 x 32 KB 4 x 256 KB 6 MB
Associativity: 8-way set
4-way set
8-way set
12-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
  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 i7-740QM

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, HT, VT, TXT, TBT>
   Core i7-740QM4 / 81.73 GHz2.93 GHz6 MB45WSSE4, HT, VT, TXT, TBT 
   Core i7-820QM4 / 81.73 GHz3.06 GHz8 MB45WSSE4, HT, VT, TXT, TBT>
   Core i7-840QM4 / 81.86 GHz3.2 GHz8 MB45WSSE4, 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, HT, VT, TXT, TBT>
   Celeron P46002 / 22 GHz 2 MB35WSSE4, HT, VT, TXT, TBT>
   Pentium P62002 / 22.13 GHz 3 MB35WSSE4, HT, VT, TXT, TBT>
   Pentium P63002 / 22.26 GHz 3 MB35WSSE4, HT, VT, TXT, TBT>
   Core i3-380M (PGA988)2 / 42.53 GHz 3 MB35WSSE4, HT, VT, TXT, TBT>
   Core i3-390M (PGA988)2 / 42.66 GHz 3 MB35WSSE4, 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, HT, VT, TXT, TBT, Unlock>
   Core i7-940XM4 / 82.13 GHz3.33 GHz8 MB55WSSE4, 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 i7-740QM
 • Click on the >  icon to compare any CPU in the table with the Intel Core i7-740QM (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

Pictures (1)

2011-11-22 13:21:50
Posted by: Carlos Guimar„es

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