GPU Wiki
Compare NVIDIA GPUs
Select up to four GPU Wiki entries to compare matching specifications row by row. The comparison uses the site database and keeps generation-specific specs visibly separate.
Row order:
Muted cells indicate unavailable, not applicable, or not directly comparable specifications.
| Spec | GeForce GT 640 |
|---|---|
| Overview | |
| Product name | NVIDIA GeForce GT 640 |
| Architecture | Kepler |
| Generation / family | GeForce 600 Series |
| GPU codename | GK107 |
| Launch date | 2012-06-05 |
| Market segment | Desktop in GeForce 600 Series |
| Board type / entry type | Reference GPU |
| GPU | |
| Process node | TSMC 28 nm |
| Die size | 118 mm² |
| Transistor count | 1.27 billion |
| GPU chip | GK107 |
| SM / multiprocessor count | 0 |
| CUDA Cores | 384 |
| ROPs | 16 |
| TMUs | 32 |
| Clocks | |
| Base / Core clock | 902 MHz |
| Boost clock | 902 MHz |
| Memory clock | 891 MHz |
| Memory | |
| Memory size | 2 GB |
| Memory type | DDR3 |
| Memory bus width | 128-bit |
| Memory bandwidth | 28.51 GB/s |
| Bus / Interface | |
| Bus interface | PCIe 3.0 x16 |
| AGP / PCI / PCIe distinction | PCIe |
| Power | |
| TDP / TBP / board power | 65 W |
| Recommended PSU | 250 W |
| Power connectors | None |
| Slot width | Single-slot, 145 mm length |
| Display / Media | |
| Display outputs | 1x DVI, 1x HDMI 1.4a, 1x DisplayPort 1.2 |
| Features | |
| DirectX support | DirectX 11.0 |
| OpenGL support | OpenGL 4.6 |
| Vulkan support | Vulkan 1.2 |
| CUDA support | 3.0 |
| Shader Model | 5.1 |
| Performance / Benchmarks | |
| FP32 throughput | 0.69 TFLOPS |
Overview
Product name
GeForce GT 640
NVIDIA GeForce GT 640
Architecture
GeForce GT 640
Kepler
Generation / family
GeForce GT 640
GeForce 600 Series
GPU codename
GeForce GT 640
GK107
Launch date
GeForce GT 640
2012-06-05
Market segment
GeForce GT 640
Desktop in GeForce 600 Series
Board type / entry type
GeForce GT 640
Reference GPU
GPU
Process node
GeForce GT 640
TSMC 28 nm
Die size
GeForce GT 640
118 mm²
Transistor count
GeForce GT 640
1.27 billion
GPU chip
GeForce GT 640
GK107
SM / multiprocessor count
GeForce GT 640
0
CUDA Cores
GeForce GT 640
384
ROPs
GeForce GT 640
16
TMUs
GeForce GT 640
32
Clocks
Base / Core clock
GeForce GT 640
902 MHz
Boost clock
GeForce GT 640
902 MHz
Memory clock
GeForce GT 640
891 MHz
Memory
Memory size
GeForce GT 640
2 GB
Memory type
GeForce GT 640
DDR3
Memory bus width
GeForce GT 640
128-bit
Memory bandwidth
GeForce GT 640
28.51 GB/s
Bus / Interface
Bus interface
GeForce GT 640
PCIe 3.0 x16
AGP / PCI / PCIe distinction
GeForce GT 640
PCIe
Power
TDP / TBP / board power
GeForce GT 640
65 W
Recommended PSU
GeForce GT 640
250 W
Power connectors
GeForce GT 640
None
Slot width
GeForce GT 640
Single-slot, 145 mm length
Display / Media
Display outputs
GeForce GT 640
1x DVI, 1x HDMI 1.4a, 1x DisplayPort 1.2
Features
DirectX support
GeForce GT 640
DirectX 11.0
OpenGL support
GeForce GT 640
OpenGL 4.6
Vulkan support
GeForce GT 640
Vulkan 1.2
CUDA support
GeForce GT 640
3.0
Shader Model
GeForce GT 640
5.1
Performance / Benchmarks
FP32 throughput
GeForce GT 640
0.69 TFLOPS