ATI Radeon X850 XT Platinum Edition

R400Radeon X SeriesGamingDesktopGDDR32004

Key Metrics

Architecture
R400
Launch Date
2004-12-21
Stream Processors
16
Memory
256 MB GDDR3
Memory Bandwidth
37.8 GB/s
TDP/TBP
67 W
Interface
AGP 8x
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Why It Mattered

The X850 XT PE was the fastest AGP card ATI ever made and held its own against the GeForce 6800 Ultra in the final meaningful AGP performance contest before PCIe became dominant.

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Sources

Sources reviewed: 2026-06-25

This entry is still being source-checked.

Data confidence and source status

Partial entry. Core specifications may be present, but history, variant notes, known issues, and source review may be incomplete.

  • Verified: core specifications and historical notes have been reviewed against listed sources.
  • Partial: core specifications may be present, but history, variant notes, known issues, and source review may be incomplete.
  • Imported: spec-only imported entry pending editorial source review.
  • Needs source review: narrative notes are incomplete until reviewed.

Independent reference sources

  1. TechPowerUp GPU SpecsSpecification referenceOpen source

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