GTX 645 for Blender
Kepler GPU with 1 GB VRAM, below Blender’s published 2 GB minimum for current Windows/Linux releases.
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- Blender Cycles score
- Unavailable
- VRAM
- 1 GB
- Below Blender’s VRAM minimum
- Released
- 2013
- Render support
- CUDA
- Power draw (TDP)
- 65 W
Technical specifications
GPU
- ArchitectureKepler
- CUDA cores576
Memory
- TypeGDDR5
- Bandwidth64 GB/s
- Bus width128-bit
Clocks & manufacturing
- Boost clock824 MHz
- Base clock824 MHz
- Process size28 nm
GTX 645 Blender benchmarks
Estimated time to render one benchmark frame · Lower is faster.
Scene benchmarks unavailable
Scene benchmarks are unavailable for this GPU’s selected benchmark result.
About these estimates
Times estimate one frame of each benchmark scene from the same runs, Blender version and backend as the displayed Cycles score. The calculation uses 240 samples for Junkshop, 256 for Monster and 300 for Classroom, plus a 19% estimation buffer. Actual project render times vary. Results from different Blender versions may not be directly comparable.
Is GTX 645 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
Tradeoffs to know
- Below the published 2 GB VRAM minimum for current Blender on Windows/Linux. Older Blender versions have different requirements. Memory capacity is only one part of GPU compatibility.
- Only 1 GB of VRAM limits rendering of complex scenes
- Older architecture may struggle with modern Blender features
Who should choose it
- GTX 645 is not recommended as a GPU purchase for current Blender rendering.
- Below the published 2 GB VRAM minimum for current Blender on Windows/Linux. Older Blender versions have different requirements. Memory capacity is only one part of GPU compatibility.
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