GeForce GT 640M

KeplerGeForce 600 SeriesLaptopDesktopDDR32012Notebook OEM

Key Metrics

Architecture
Kepler
Launch Date
2012-03-22
CUDA Cores
384
Memory
2 GB DDR3
Memory Bandwidth
28.8 GB/s
TDP/TBP
32 W
Interface
PCIe 3.0 x16
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Why It Mattered

GeForce GT 640M matters as a mobile GeForce 600 Series implementation from the Kepler generation around 2012. Laptop GPU names often hide large differences in power limits, cooling, memory, and OEM firmware, so tracking the exact variant explains why similarly named systems can perform differently.

Related GPUs

Back to GeForce 600 Series

Previous in series: GeForce GT 640 Rev. 2Next in series: GeForce GT 640M LE
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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