Core 2 Extreme QX9775 vs Core i7-950

Primary details

Comparing Core i7-950 and Core 2 Extreme QX9775 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1919not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.17no data
Market segmentDesktop processorDesktop processor
SeriesCore i7 (Desktop)no data
Power efficiency1.48no data
Architecture codenameBloomfield (2008−2010)Yorkfield (2007−2009)
Release date2 June 2009 (15 years ago)March 2008 (16 years ago)
Launch price (MSRP)$290no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i7-950 and Core 2 Extreme QX9775 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 cores4 (Quad-Core)4 (Quad-Core)
Threads84
Base clock speed3.06 GHz3.2 GHz
Boost clock speed3.33 GHz3.2 GHz
Bus rate1333 MHz1600 MHz
L1 cache64 KB (per core)64K (per core)
L2 cache256 KB (per core)12 MB (shared)
L3 cache8 MB (shared)0 KB
Chip lithography45 nm45 nm
Die size263 mm22x 107 mm2
Maximum core temperature68 °Cno data
Maximum case temperature (TCase)no data63 °C
Number of transistors731 million820 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier-+
VID voltage rangeno data0.85V-1.35V

Compatibility

Information on Core i7-950 and Core 2 Extreme QX9775 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
SocketFCLGA1366LGA771
Power consumption (TDP)130 Watt150 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-950 and Core 2 Extreme QX9775. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.2no data
Enhanced SpeedStep (EIST)++
Turbo Boost Technology1.0-
Hyper-Threading Technology+-
Idle States++
Thermal Monitoring-+
Demand Based Switching--
PAE36 Bitno data
FSB parityno data-

Security technologies

Core i7-950 and Core 2 Extreme QX9775 technologies aimed at improving security, for example, by protecting against hacks.

TXT+-
EDB++

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-950 and Core 2 Extreme QX9775 are enumerated here.

VT-x++
EPT+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-950 and Core 2 Extreme QX9775. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR2
Maximum memory size24 GBno data
Max memory channels3no data
Maximum memory bandwidth25.6 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardN/Ano data

Peripherals

Specifications and connection of peripherals supported by Core i7-950 and Core 2 Extreme QX9775.

PCIe version2.0no data

Pros & cons summary


Threads 8 4
Power consumption (TDP) 130 Watt 150 Watt

i7-950 has 100% more threads, and 15.4% lower power consumption.

We couldn't decide between Core i7-950 and Core 2 Extreme QX9775. We've got no test results to judge.


Should you still have questions on choice between Core i7-950 and Core 2 Extreme QX9775, 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 Core i7-950
Core i7-950
Intel Core 2 Extreme QX9775
Core 2 Extreme QX9775

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.


3.3 338 votes

Rate Core i7-950 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.7 45 votes

Rate Core 2 Extreme QX9775 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Core i7-950 or Core 2 Extreme QX9775, agree or disagree with our judgements, or report an error or mismatch.