i7-940XM Extreme Edition vs Pentium D 915

Primary details

Comparing Pentium D 915 and Core i7-940XM Extreme Edition processor market type (desktop or notebook), architecture, sales start time and price.

Place in the rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorLaptop
Seriesno dataIntel Core i7EE
Architecture codenamePresler (2005−2007)Nehalem (2008−2010)
Release date23 July 2006 (18 years ago)5 February 2010 (14 years ago)
Launch price (MSRP)$74$1,096

Detailed specifications

Pentium D 915 and Core i7-940XM Extreme Edition basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores2 (Dual-core)4 (Quad-Core)
Threads28
Base clock speed2.8 GHzno data
Boost clock speed2.8 GHz2.13 GHz
Bus typeno dataDMI
Bus rateno data2.5 GT/s
Multiplierno data16
L1 cache16 KB (per core)256 KB
L2 cache2 MB (per die)1 MB
L3 cache0 KB8 MB
Chip lithography65 nm45 nm
Die size2x 81 mm2296 mm2
Maximum case temperature (TCase)63 °Cno data
Number of transistors376 million774 Million
64 bit support++
Windows 11 compatibility--
VID voltage range1.2V-1.3375Vno data

Compatibility

Information on Pentium D 915 and Core i7-940XM Extreme Edition compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration11 (Uniprocessor)
SocketLGA775,PLGA775no data
Power consumption (TDP)95 Watt55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium D 915 and Core i7-940XM Extreme Edition. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)++
Turbo Boost Technology-no data
Hyper-Threading Technology-no data
Idle States+no data
Demand Based Switching-no data
PAE32 Bitno data
FSB parity-no data

Security technologies

Pentium D 915 and Core i7-940XM Extreme Edition technologies aimed at improving security, for example, by protecting against hacks.

TXT-+
EDB+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium D 915 and Core i7-940XM Extreme Edition are enumerated here.

VT-d-+
VT-x-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium D 915 and Core i7-940XM Extreme Edition. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1, DDR2, DDR3DDR3-1333
Maximum memory sizeno data8 GB
Max memory channelsno data2
Maximum memory bandwidthno data21.335 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardOn certain motherboards (Chipset feature)no data

Peripherals

Specifications and connection of peripherals supported by Pentium D 915 and Core i7-940XM Extreme Edition.

PCIe versionno data2.0
PCI Express lanesno data16

Pros & cons summary


Recency 23 July 2006 5 February 2010
Physical cores 2 4
Threads 2 8
Chip lithography 65 nm 45 nm
Power consumption (TDP) 95 Watt 55 Watt

i7-940XM Extreme Edition has an age advantage of 3 years, 100% more physical cores and 300% more threads, a 44.4% more advanced lithography process, and 72.7% lower power consumption.

We couldn't decide between Pentium D 915 and Core i7-940XM Extreme Edition. We've got no test results to judge.

Note that Pentium D 915 is a desktop processor while Core i7-940XM Extreme Edition is a notebook one.


Should you still have questions on choice between Pentium D 915 and Core i7-940XM Extreme Edition, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


Intel Pentium D 915
Pentium D 915
Intel Core i7-940XM Extreme Edition
Core i7-940XM Extreme Edition

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


3.4 66 votes

Rate Pentium D 915 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
2.5 11 votes

Rate Core i7-940XM Extreme Edition on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Pentium D 915 or Core i7-940XM Extreme Edition, agree or disagree with our judgements, or report an error or mismatch.