NVIDIA GeForce GT 640M LE
- Graphics Processor
- GF108
- Cores
- 96
- TMUs
- 16
- ROPs
- 4
- Memory Size
- 2 GB
- Memory Type
- GDDR5
- Bus Width
- 128 bit
Recommended Gaming Resolutions:
- 640x480
- 1280x720
- 1366x768
- 1600x900
- 1920x1080
- 2560x1440
- 3840x2160
The GeForce GT 640M LE was a mobile graphics chip by NVIDIA, launched in May 2012. Built on the 40 nm process, and based on the GF108 graphics processor, the chip supports DirectX 12. Even though it supports DirectX 12, the feature level is only 11_0, which can be problematic with newer DirectX 12 titles. The GF108 graphics processor is an average sized chip with a die area of 116 mm² and 585 million transistors. It features 96 shading units, 16 texture mapping units, and 4 ROPs. NVIDIA has paired 2,048 MB GDDR5 memory with the GeForce GT 640M LE, which are connected using a 128-bit memory interface. The GPU is operating at a frequency of 753 MHz, memory is running at 785 MHz (3.1 Gbps effective).
Its power draw is rated at 32 W maximum. This device has no display connectivity, as it is not designed to have monitors connected to it. Rather it is intended for use in laptop/notebooks and will use the output of the host mobile device. GeForce GT 640M LE is connected to the rest of the system using a PCI-Express 2.0 x16 interface.
Its power draw is rated at 32 W maximum. This device has no display connectivity, as it is not designed to have monitors connected to it. Rather it is intended for use in laptop/notebooks and will use the output of the host mobile device. GeForce GT 640M LE is connected to the rest of the system using a PCI-Express 2.0 x16 interface.
Graphics Processor
Mobile Graphics
- Release Date
- May 4th, 2012
- Generation
- GeForce 600M
- Predecessor
- GeForce 500M
- Successor
- GeForce 700M
- Production
- End-of-life
- Bus Interface
- PCIe 2.0 x16
- Reviews
- 2 in our database
Relative Performance
Based on TPU review data: "Performance Summary" at 1920x1080, 4K for 2080 Ti and faster.
Performance estimated based on architecture, shader count and clocks.
Clock Speeds
- GPU Clock
- 753 MHz
- Shader Clock
- 1505 MHz
- Memory Clock
-
785 MHz
3.1 Gbps effective
Memory
- Memory Size
- 2 GB
- Memory Type
- GDDR5
- Memory Bus
- 128 bit
- Bandwidth
- 50.24 GB/s
Render Config
- Shading Units
- 96
- TMUs
- 16
- ROPs
- 4
- SM Count
- 2
- L1 Cache
- 64 KB (per SM)
- L2 Cache
- 256 KB
Theoretical Performance
- Pixel Rate
- 3.012 GPixel/s
- Texture Rate
- 12.05 GTexel/s
- FP32 (float) performance
- 289.0 GFLOPS
- FP64 (double) performance
- 24.08 GFLOPS (1:12)
Board Design
- TDP
- 32 W
- Outputs
- No outputs
Graphics Features
- DirectX
- 12 (11_0)
- OpenGL
- 4.6
- OpenCL
- 1.1
- Vulkan
- N/A
- CUDA
- 2.1
- Shader Model
- 5.1
Card Notes
| 96SP |