AMD FX

AMD FX is a series of high-end AMD microprocessors for personal computers debuted in 2011, claimed as AMD's first native 8-core desktop processor.[1] The line was introduced with the Bulldozer microarchitecture at launch (CPU codename Zambezi), and was then succeeded by its derivative Piledriver in 2012 (codename Vishera).

AMD FX
General Info
LaunchedMarch 2011
DiscontinuedMarch 1, 2017
Marketed byAMD
Designed byAMD
Common manufacturer(s)
Performance
Max. CPU clock rate2.8 GHz to 5.0 GHz
Architecture and classification
Min. feature size32 nm to 28 nm
MicroarchitectureBulldozer, Piledriver
Instruction setAMD64/x86-64, MMX(+), SSE1, 2, 3, 3s, 4.1, 4.2, 4a, AES, CLMUL, AVX, XOP, FMA3, FMA4, CVT16/F16C, BMI1, ABM, TBM
Physical specifications
Cores
  • 4/2, 6/3, 8/4 (Cores/Modules)
Socket(s)
Products, models, variants
Core name(s)
  • Zambezi
  • Vishera
History
PredecessorPhenom II
Athlon II
SuccessorRyzen

The line aimed at competing with the Intel Core line of desktop processors, and in particular the Sandy Bridge and Ivy Bridge architectures.[2][3]

AMD's successor architecture, Zen, was released in 2017 under the Ryzen brand, replacing the FX series and competing with Intel's Skylake and Kaby Lake Core series.[4]

Features

One notable feature of the AMD FX microprocessors is that they are all unlocked and overclockable, a feature reserved for the high-end K suffix SKUs from Intel. This allows users to increase the clock speed of their CPU and to gain extra performance out of their product.[5] The personal world record for highest overclock was achieved on an FX-8350, which is clocked up to 8794.33MHz.[6]

  • 4 "Bulldozer cores" (dual-core modules) within FX-8 series, 3 in FX-6 series, and 2 in FX-4 series, with two integer clusters (seen as logical cores from OS) and a shared floating-point unit in each "Bulldozer core".
  • All models manufactured from 8 logical cores with simple Orochi die production, in 938 pins µPGA package AM3+ socket.
  • All models support up to 4 DIMMs of DDR3 memory.

Unlike the majority of their Intel counterparts, FX chips offer no integrated graphics, a feature reserved to AMD's APU line of processors. Both Zambezi and Vishera use a module design containing two cores on one module.

Features table

CPU features table

Notes
  • AMD later re-used the FX designation for some processors in its socket FM2/FM2+ APU lineup.

See also

References
  1. "AMD FX Processors". AMD FX Processors. Advanced Micro Devices, Inc. Retrieved 12 September 2015.
  2. Hruska, Joel (4 November 2013). "AMD vs. Intel, the ultimate gaming showdown: 5GHz FX-9590 vs. i7-4960X". extremetech.com. Retrieved 5 December 2016.
  3. "AMD Ships First "Bulldozer" Processors". Retrieved 2016-12-05.
  4. "AMD's Ryzen launches March 2, outperforming Intel's Core i7 at a fraction of the price". PCWorld. Retrieved 2017-08-12.
  5. Torres, Gabriel (2 October 2013). "All AMD FX CPU Models". hardwaresecrets.com. Retrieved 6 December 2016.
  6. "CPU-Z Validator - World Records". valid.x86.fr. Retrieved 7 April 2019.
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