GeForce GT 640 Rev. 2

Kepler 2.0GeForce 600 SeriesDesktopGDDR52013NVIDIA

Key Metrics

Architecture
Kepler 2.0
Launch Date
2013-05-29
CUDA Cores
384
Memory
1 GB GDDR5
Memory Bandwidth
40.06 GB/s
TDP/TBP
49 W
Interface
PCIe 2.0 x8
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Why It Mattered

GeForce GT 640 Rev. 2 belongs to the Kepler 2.0 and GeForce 600 Series era around 2013, when PC graphics cards varied heavily by bus, memory chips, BIOS, cooler, and display outputs. Tracking the exact model helps retro builders distinguish period-correct boards from similarly named variants.

Related GPUs

Back to GeForce 600 Series

Previous in series: GeForce GT 640 OEM RebrandNext in series: GeForce GT 640M
Sources

Sources reviewed: 2026-06-20

This entry is still being source-checked.

Specifications are currently based on reference/spec-dump sources. Historical notes require additional source review.

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 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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