Core 2 Quad Q9550s vs Phenom II X4 840T

Primary details

Comparing Phenom II X4 840T and Core 2 Quad Q9550s processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2155not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation2.28no data
Market segmentDesktop processorDesktop processor
Power efficiency1.46no data
Architecture codenameZosma (2010−2011)Yorkfield (2007−2009)
Release date1 September 2010 (14 years ago)27 January 2009 (15 years ago)
Launch price (MSRP)$80no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Phenom II X4 840T and Core 2 Quad Q9550s 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)
Threads44
Base clock speed2.9 GHz2.83 GHz
Boost clock speed3.2 GHz0.83 GHz
Bus rateno data1333 MHz
L1 cache128 KB (per core)64 KB (per core)
L2 cache512 KB (per core)12 MB (shared)
L3 cache6 MB (shared)0 KB
Chip lithography45 nm45 nm
Die size346 mm22x 107 mm2
Maximum case temperature (TCase)no data76 °C
Number of transistors904 million820 million
64 bit support++
Windows 11 compatibility--
VID voltage rangeno data0.85V-1.3625V

Compatibility

Information on Phenom II X4 840T and Core 2 Quad Q9550s 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
SocketAM3LGA775
Power consumption (TDP)95 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Phenom II X4 840T and Core 2 Quad Q9550s. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)no data+
Turbo Boost Technologyno data-
Hyper-Threading Technologyno data-
Idle Statesno data+
Thermal Monitoring-+
Demand Based Switchingno data-
FSB parityno data+

Security technologies

Phenom II X4 840T and Core 2 Quad Q9550s technologies aimed at improving security, for example, by protecting against hacks.

TXTno data+
EDBno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Phenom II X4 840T and Core 2 Quad Q9550s are enumerated here.

AMD-V+-
VT-dno data+
VT-xno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Phenom II X4 840T and Core 2 Quad Q9550s. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR1, DDR2, DDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataOn certain motherboards (Chipset feature)

Peripherals

Specifications and connection of peripherals supported by Phenom II X4 840T and Core 2 Quad Q9550s.

PCIe version2.02.0

Pros & cons summary


Recency 1 September 2010 27 January 2009
Power consumption (TDP) 95 Watt 65 Watt

Phenom II X4 840T has an age advantage of 1 year.

Core 2 Quad Q9550s, on the other hand, has 46.2% lower power consumption.

We couldn't decide between Phenom II X4 840T and Core 2 Quad Q9550s. We've got no test results to judge.


Should you still have questions on choice between Phenom II X4 840T and Core 2 Quad Q9550s, 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.


AMD Phenom II X4 840T
Phenom II X4 840T
Intel Core 2 Quad Q9550s
Core 2 Quad Q9550s

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 37 votes

Rate Phenom II X4 840T on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
4.7 20 votes

Rate Core 2 Quad Q9550s on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Phenom II X4 840T or Core 2 Quad Q9550s, agree or disagree with our judgements, or report an error or mismatch.