Phenom X4 9850 (95W) vs Athlon II X4 645

VS

Primary details

Comparing Athlon II X4 645 and Phenom X4 9850 (95W) processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2167not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation3.30no data
Market segmentDesktop processorDesktop processor
Power efficiency1.47no data
Architecture codenamePropus (2009−2011)Agena (2007−2008)
Release date21 September 2010 (14 years ago)October 2008 (16 years ago)
Launch price (MSRP)$80no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Athlon II X4 645 and Phenom X4 9850 (95W) 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 speed3.1 GHzno data
Boost clock speed3.1 GHz2.5 GHz
L1 cache128 KB (per core)128 KB (per core)
L2 cache512 KB (per core)512 KB (per core)
L3 cache0 KB2 MB (shared)
Chip lithography45 nm65 nm
Die size169 mm2285 mm2
Number of transistors300 million450 million
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Athlon II X4 645 and Phenom X4 9850 (95W) 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
SocketAM3AM2+
Power consumption (TDP)95 Watt95 Watt

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon II X4 645 and Phenom X4 9850 (95W) are enumerated here.

AMD-V-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon II X4 645 and Phenom X4 9850 (95W). Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3no data

Peripherals

Specifications and connection of peripherals supported by Athlon II X4 645 and Phenom X4 9850 (95W).

PCIe version2.0no data

Pros & cons summary


Chip lithography 45 nm 65 nm

Athlon II X4 645 has a 44.4% more advanced lithography process.

We couldn't decide between Athlon II X4 645 and Phenom X4 9850 (95W). We've got no test results to judge.


Should you still have questions on choice between Athlon II X4 645 and Phenom X4 9850 (95W), 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 Athlon II X4 645
Athlon II X4 645
AMD Phenom X4 9850 (95W)
Phenom X4 9850 (95W)

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.


3.8 394 votes

Rate Athlon II X4 645 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.1 52 votes

Rate Phenom X4 9850 (95W) on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Athlon II X4 645 or Phenom X4 9850 (95W), agree or disagree with our judgements, or report an error or mismatch.