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February 11, 2017

PAO

Process-Architecture-Optimization
 
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February 11, 2017

Tick-Tock

Tick-Tock is a processor development strategy used by Intel between 2007 to 2016
 
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February 11, 2017

TDP

Thermal Design Power
 
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January 8, 2019

XFR

Extended Frequency Range
 
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June 24, 2017

HEDT

HEDT, or High End Desktop, is an acronym originally coined by Intel to refer to their high end consumer desktop PC platforms designed for enthusiasts, gamers, and content creators. Today, both Intel and AMD refer to their high end consumer desktop PC platforms as HEDT.

Some of Intel’s HEDT platforms include X79 (Sandy Bridge-E, Ivy Bridge-E), X99 (Haswell-E, Broadwell-E), and X299 (Skylake-X, Kaby Lake-X). AMD’s HEDT platforms include X399 (Threadripper).

 
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August 14, 2017

Infinity Fabric

Infinity Fabric, the successor to AMD HyperTransport, is a high speed interlink used for data exchange between the CPU, PCIe, I/O, and memory. Infinity Fabric is also used for intra-die data communications as well, linking together multiple CCX (CPU Complexes) within the AMD Ryzen, Threadripper, and Epyc CPUs.

AMD’s Infinity Fabric design consists of two distinct parts: Scalable Control Fabric (SCF) and Scalable Data Fabric (SDF). The SCF includes power management, security, and anything involving maintaining the¬†operation of the chip while the SDF is what ties the memory and the compute components together. As such, the latency of the SDF must be low [...]

 
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July 6, 2017

CCX

AMD Zen CCX (Core Complex)

In AMD CPUs, CCX is an acronym used by AMD to refer to the Core Complex used in AMD’s Zen architecture based processors. Each CCX is a modular unit which contains four Zen cores connected to a shared L3 cache. Multiple CCX are then connected together using AMD’s Infinity Fabric interconnect to then create processors. For example, AMD’s Ryzen 7 processors contain two CCX while AMD’s EPYC 7000 processors contain four CCX.

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