Core 2 Extreme QX9775 vs Athlon II X4 635

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Primary details

Comparing Athlon II X4 635 and Core 2 Extreme QX9775 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2222not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation2.86no data
Market segmentDesktop processorDesktop processor
Power efficiency1.40no data
Architecture codenamePropus (2009−2011)Yorkfield (2007−2009)
Release date25 January 2010 (14 years ago)March 2008 (16 years ago)
Launch price (MSRP)$70no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Athlon II X4 635 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)
Threads44
Base clock speed2.9 GHz3.2 GHz
Boost clock speed2.9 GHz3.2 GHz
Bus rateno data1600 MHz
L1 cache128 KB (per core)64K (per core)
L2 cache512 KB (per core)12 MB (shared)
L3 cache0 KB0 KB
Chip lithography45 nm45 nm
Die size169 mm22x 107 mm2
Maximum case temperature (TCase)no data63 °C
Number of transistors300 million820 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier-+
VID voltage rangeno data0.85V-1.35V

Compatibility

Information on Athlon II X4 635 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
SocketAM3LGA771
Power consumption (TDP)95 Watt150 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon II X4 635 and Core 2 Extreme QX9775. 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

Athlon II X4 635 and Core 2 Extreme QX9775 technologies aimed at improving security, for example, by protecting against hacks.

TXTno data-
EDBno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon II X4 635 and Core 2 Extreme QX9775 are enumerated here.

VT-xno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon II X4 635 and Core 2 Extreme QX9775. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR2

Peripherals

Specifications and connection of peripherals supported by Athlon II X4 635 and Core 2 Extreme QX9775.

PCIe version2.0no data

Pros & cons summary


Power consumption (TDP) 95 Watt 150 Watt

Athlon II X4 635 has 57.9% lower power consumption.

We couldn't decide between Athlon II X4 635 and Core 2 Extreme QX9775. We've got no test results to judge.


Should you still have questions on choice between Athlon II X4 635 and Core 2 Extreme QX9775, ask them in Comments section, and we shall answer.

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AMD Athlon II X4 635
Athlon II X4 635
Intel Core 2 Extreme QX9775
Core 2 Extreme QX9775

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Community ratings

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3.7 219 votes

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