GPU Wiki
Compare 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.
Popular comparisons
| Spec | GeForce GT 640 Rev. 2 |
|---|---|
| Overview | |
| Product name | NVIDIA GeForce GT 640 Rev. 2 |
| Architecture | Kepler 2.0 |
| Generation / family | GeForce 600 Series |
| GPU codename | GK208 |
| Launch date | 2013-05-29 |
| Market segment | Desktop in GeForce 600 Series |
| Board type / entry type | Reference GPU |
| GPU | |
| Process node | TSMC 28 nm |
| Die size | 87 mm² |
| Transistor count | 1.02 billion |
| GPU chip | GK208 |
| SM / multiprocessor count | 0 |
| CUDA Cores | 384 |
| ROPs | 8 |
| TMUs | 32 |
| Clocks | |
| Base / Core clock | 1,046 MHz |
| Boost clock | 1,046 MHz |
| Memory clock | 1,252 MHz |
| Memory | |
| Memory size | 1 GB |
| Memory type | GDDR5 |
| Memory bus width | 64-bit |
| Memory bandwidth | 40.06 GB/s |
| Bus / Interface | |
| Bus interface | PCIe 2.0 x8 |
| AGP / PCI / PCIe distinction | PCIe |
| Power | |
| TDP / TBP / board power | 49 W |
| Recommended PSU | 200 W |
| Power connectors | None |
| Slot width | Single-slot, 145 mm length |
| Display / Media | |
| Display outputs | 1x DVI, 1x HDMI 1.4a, 1x VGA |
| Features | |
| DirectX support | DirectX 11.0 |
| OpenGL support | OpenGL 4.6 |
| Vulkan support | Vulkan 1.2 |
| CUDA support | 3.5 |
| Shader Model | 5.1 |
| Performance / Benchmarks | |
| FP32 throughput | 0.8 TFLOPS |
Overview
Product name
GeForce GT 640 Rev. 2
NVIDIA GeForce GT 640 Rev. 2
Architecture
GeForce GT 640 Rev. 2
Kepler 2.0
Generation / family
GeForce GT 640 Rev. 2
GeForce 600 Series
GPU codename
GeForce GT 640 Rev. 2
GK208
Launch date
GeForce GT 640 Rev. 2
2013-05-29
Market segment
GeForce GT 640 Rev. 2
Desktop in GeForce 600 Series
Board type / entry type
GeForce GT 640 Rev. 2
Reference GPU
GPU
Process node
GeForce GT 640 Rev. 2
TSMC 28 nm
Die size
GeForce GT 640 Rev. 2
87 mm²
Transistor count
GeForce GT 640 Rev. 2
1.02 billion
GPU chip
GeForce GT 640 Rev. 2
GK208
SM / multiprocessor count
GeForce GT 640 Rev. 2
0
CUDA Cores
GeForce GT 640 Rev. 2
384
ROPs
GeForce GT 640 Rev. 2
8
TMUs
GeForce GT 640 Rev. 2
32
Clocks
Base / Core clock
GeForce GT 640 Rev. 2
1,046 MHz
Boost clock
GeForce GT 640 Rev. 2
1,046 MHz
Memory clock
GeForce GT 640 Rev. 2
1,252 MHz
Memory
Memory size
GeForce GT 640 Rev. 2
1 GB
Memory type
GeForce GT 640 Rev. 2
GDDR5
Memory bus width
GeForce GT 640 Rev. 2
64-bit
Memory bandwidth
GeForce GT 640 Rev. 2
40.06 GB/s
Bus / Interface
Bus interface
GeForce GT 640 Rev. 2
PCIe 2.0 x8
AGP / PCI / PCIe distinction
GeForce GT 640 Rev. 2
PCIe
Power
TDP / TBP / board power
GeForce GT 640 Rev. 2
49 W
Recommended PSU
GeForce GT 640 Rev. 2
200 W
Power connectors
GeForce GT 640 Rev. 2
None
Slot width
GeForce GT 640 Rev. 2
Single-slot, 145 mm length
Display / Media
Display outputs
GeForce GT 640 Rev. 2
1x DVI, 1x HDMI 1.4a, 1x VGA
Features
DirectX support
GeForce GT 640 Rev. 2
DirectX 11.0
OpenGL support
GeForce GT 640 Rev. 2
OpenGL 4.6
Vulkan support
GeForce GT 640 Rev. 2
Vulkan 1.2
CUDA support
GeForce GT 640 Rev. 2
3.5
Shader Model
GeForce GT 640 Rev. 2
5.1
Performance / Benchmarks
FP32 throughput
GeForce GT 640 Rev. 2
0.8 TFLOPS
Muted cells indicate unavailable, not applicable, or not directly comparable specifications.
Frame rates compare runs of the same game at the same quality preset on one test system. DLAA counts as native resolution, because it applies anti-aliasing at full render resolution rather than upscaling; DLSS and FSR upscaling are never counted as native. Where a capture named ray tracing without a readable on or off value, it is read as on.