Tesla K20X

KeplerTesla K SeriesData CenterServerGDDR52012NVIDIA

Key Metrics

Architecture
Kepler
Launch Date
2012-11-12
CUDA Cores
2,688
Memory
6 GB GDDR5
Memory Bandwidth
249.6 GB/s
TDP/TBP
235 W
Interface
PCIe 3.0 x16
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Why It Mattered

Tesla K20X is a Tesla K Series accelerator from the Kepler generation. Its historical context is data-center deployment rather than gaming, so form factor, memory capacity, interconnect, virtualization features, and server compatibility are the details that make this entry useful.

Used-Market Caution

Before buying used, confirm PCIe versus SXM or OAM form factor, passive airflow needs, auxiliary power, HBM size, firmware locks, ECC or retired-page errors, seller proof from nvidia-smi under load, and whether any vGPU or enterprise licensing is required.

Related GPUs

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Previous in series: Tesla K20sNext in series: Tesla K20Xm
Sources

Sources reviewed: 2026-08-13

This entry is still being source-checked.

Source Status

Source review pending. Treat narrative notes as incomplete until listed sources are reviewed.

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.

Primary / manufacturer sources

  1. NVIDIA Unveils World's Fastest, Most Efficient Accelerators, Powers World's No. 1 SupercomputerOfficial November 12, 2012 unveiling of the Tesla K20 family, including K20 and K20XOpen source
  2. NVIDIA Tesla K20X GPU Accelerator board specificationOfficial K20X memory, memory-interface, board-power, and PCIe 6-pin plus 8-pin connector specificationsOpen source

Independent reference sources

  1. TechPowerUp GPU SpecsModel-level specification reference for this GPU entryOpen source

Derived datasets and spec dumps

  1. RightNow GPU DatabaseOpen data inventory used for bulk normalization and cross-checking Derived/spec-dump source. Treat as a reference dataset, not independent historical verification.Open source

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