GT 640 for Blender
Kepler GPU best suited to lighter Blender scenes, learning workflows, and budget-conscious rendering setups.
Last updated: May 26, 2026
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36
Entry-level speed — fine for learning and lighter scenes.
2 GB
Limited — best for simpler scenes and lighter workflows.
384
Lower core count — adequate for lighter rendering workloads.
Kepler
Older architecture — check benchmark scores for a practical performance picture.
28.5 GB/s
Lower bandwidth may become a bottleneck in texture-heavy or complex scenes.
902 MHz
Lower clock speed — typical of older or workstation-class GPUs.
CUDA
CUDA provides the primary GPU rendering path in Blender Cycles.
65 W
Low power — easy to cool and efficient for smaller builds.
2012
More technical details
Core specs
- Base clock: 902 MHz
- Process size: 28 nm
Memory specs
- Memory type: DDR3
- Memory bus: 128-bit
Benchmark performance
This chart estimates how many seconds this GPU takes to render one frame of each standard Blender benchmark scene, so you can compare practical rendering speed at a glance.
These are single-frame estimates derived from Blender Open Data benchmark medians at the scene sample counts, not full-animation render times or guarantees for every real project.
View Blender Open Data sourceIs GT 640 good for Blender?
A concise editorial read on where this GPU looks strong, the tradeoffs to keep in mind, and who it suits best.
What stands out
- Kepler Architecture
- 28 nm Process Size
- 384 CUDA cores
- Base and Boost Clock at 902 MHz
Tradeoffs to know
- Limited VRAM at 2 GB
- Not suitable for complex scenes
Who should choose it
- Affordable option for beginners
- Handles basic rendering tasks
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