PC Games Hardware Revisits AMD’s x86-64 Breakthrough from the Hammer Era

PC Games Hardware is looking back at one of the most consequential milestones in modern CPU history: AMD’s introduction of the x86-64 path in the lead-up to the “Hammer” era. On August 10, 2000, the company outlined an architecture that would reshape how personal computers handle 64-bit computing—later showing up not only in server chips, but also in mainstream consumer processors.

August 10, 2000: AMD previews x86-64 for “Hammer”

On August 10, 2000, AMD provided a closer look at the x86-64 architecture that would power its upcoming “Hammer” processor family, also referred to as the K8 platform.

• The x86-64 design was tied to AMD’s “Hammer” lineup (K8).
• This architecture would eventually lead to the Server CPU Opteron.
• It would also later connect to the Athlon 64 in the consumer space.

Why it mattered: a major x86 expansion not led by Intel

The announcement was positioned by AMD as a “revolution” in the evolution of the x86 processor instruction set. The key distinction highlighted at the time was that this was the first major x86 expansion that did not originate from Intel.

• AMD promoted the expansion of the x86 instruction set as a revolutionary step.
• The article notes it was the first large expansion not driven by Intel.
• Earlier bit-width jumps—8 to 16, and then 16 to 32—were described as having been handled by Intel at the time.

Intel’s later shift and the broader business backdrop

Over time, Intel reportedly acknowledged the importance of AMD’s direction and adopted the technology for its own Pentium processors. The move is described as happening without a major public announcement.

• Intel later took on the AMD-developed technique for its Pentium processors.
• This adoption reportedly came without a significant, headline-grabbing announcement.

The retrospective also touches on AMD’s manufacturing footprint, referencing an “AMD Inside” piece about Dresden’s Fab 30—an operation that, according to the research material, has since been split out into Globalfoundries.

• Fab 30 in Dresden was split into the company Globalfoundries.
• AMD initially held smaller stakes in the new entity.
• Later, AMD is stated to hold no shares.