NVIDIA GeForce GT 640: GPU Specs & Benchmarks
The GeForce GT 640 is a graphics card by NVIDIA, built on the 28 nm process and based on the GK107 graphics processor (GPU). The video card specifications and performance tests (benchmarks) are listed below.
Recommended Gaming Resolutions 640x480 1280x720 1366x768 1600x900 1920x1080 2560x1440 3840x2160
Graphics Processor (GPU)
- GPU Name
- GK107
- Model number
- GK107-300-A2
- Architecture
- Kepler
- Foundry
- TSMC
- Process Size
- 28 nm
- Transistors
- 1,270 million
- Die Size
- 118 mm²
Graphics Card
- Release Date
- Jun 5th, 2012
- Family
- GeForce 600
- Production
- End-of-life
- Launch Price
- 99 USD
- Predecessor
- GeForce 500
- Bus Interface
- PCIe 3.0 x16
Memory
- Memory Size
- 2 GB
- Memory Type
- DDR3
- Memory Bus
- 128 bit
- Bandwidth
- 28.51 GB/s
Performance
- Pixel fillrate
- 7.216 GPixel/s
- Texture fillrate
- 28.86 GTexel/s
- FP32 (float) performance
- 692.7 GFLOPS
- FP64 (double) performance
- 28.86 GFLOPS (1:24)
Clock Speeds
- Memory Clock
- 891 MHz
1782 Mbps effective - GPU Clock
- 902 MHz
Render Config
- Shading Units
- 384
- TMUs
- 32
- ROPs
- 16
- L1 Cache
- 16 KB (per SMX)
- L2 Cache
- 256 KB
Board Design
- Slot Width
- Single-slot
- Length
- 145 mm
5.7 inches - Thermal design power (TDP)
- 65 W
- Suggested PSU
- 250 W
- Display Connectors
- 1x DVI
1x HDMI
1x DisplayPort - Power Connectors
- None
- Board Number
- P2011
API support
- DirectX
- 12 (11_0)
- OpenGL
- 4.6
- OpenCL
- 3.0
- Vulkan
- 1.1
- Shader Model
- 5.1
- CUDA
- 3.0