Athlon 64 TF-20 vs Athlon X4 840

VS

Primary details

Comparing Athlon X4 840 and Athlon 64 TF-20 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1869not rated
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorLaptop
Series4x AthlonAMD Athlon 64
Power efficiency3.04no data
Architecture codenameKaveri (2014−2015)Sherman (2009)
Release dateAugust 2014 (10 years ago)1 May 2009 (15 years ago)

Detailed specifications

Athlon X4 840 and Athlon 64 TF-20 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)1 (Single-Core)
Threads41
Base clock speed3.1 GHzno data
Boost clock speed3.8 GHz1.6 GHz
Bus rateno data667 MHz
L1 cache256K0.1 MB
L2 cache4 MB512 KB
Chip lithography28 nm65 nm
Die size245 mm2no data
Maximum core temperatureno data95 °C
Maximum case temperature (TCase)72 °Cno data
Number of transistors2,411 millionno data
64 bit support++
Windows 11 compatibility--
Unlocked multiplier+-

Compatibility

Information on Athlon X4 840 and Athlon 64 TF-20 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 configuration1no data
SocketSocket FM2+S1g1
Power consumption (TDP)65 watt25 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon X4 840 and Athlon 64 TF-20. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataMMX, 3DNow!, SSE, SSE2, SSE3, AMD64, Enhanced Virus Protection
AES-NI+-
FMA+-
AVX+-
VirusProtect-+

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon X4 840 and Athlon 64 TF-20 are enumerated here.

AMD-V+-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon X4 840 and Athlon 64 TF-20. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3no data

Peripherals

Specifications and connection of peripherals supported by Athlon X4 840 and Athlon 64 TF-20.

PCIe version3.0no data
PCI Express lanes16no data

Pros & cons summary


Recency on August 2014 1 May 2009
Physical cores 4 1
Threads 4 1
Chip lithography 28 nm 65 nm
Power consumption (TDP) 65 Watt 25 Watt

Athlon X4 840 has an age advantage of 5 years, 300% more physical cores and 300% more threads, and a 132.1% more advanced lithography process.

Athlon 64 TF-20, on the other hand, has 160% lower power consumption.

We couldn't decide between Athlon X4 840 and Athlon 64 TF-20. We've got no test results to judge.

Note that Athlon X4 840 is a desktop processor while Athlon 64 TF-20 is a notebook one.


Should you still have questions on choice between Athlon X4 840 and Athlon 64 TF-20, 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 X4 840
Athlon X4 840
AMD Athlon 64 TF-20
Athlon 64 TF-20

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.


3.8 614 votes

Rate Athlon X4 840 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.1 34 votes

Rate Athlon 64 TF-20 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Athlon X4 840 or Athlon 64 TF-20, agree or disagree with our judgements, or report an error or mismatch.