Riva TNT2 PRO vs GeForce GT 640M
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 922 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 5.10 | no data |
| Architecture | Kepler (2012−2018) | Fahrenheit (1998−2000) |
| GPU code name | GK107 | NV5 B6 |
| Market segment | Laptop | Desktop |
| Release date | 22 March 2012 (13 years ago) | 12 October 1999 (26 years ago) |
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 384 | no data |
| Core clock speed | Up to 625 MHz | 143 MHz |
| Boost clock speed | 645 MHz | no data |
| Number of transistors | 1,270 million | 15 million |
| Manufacturing process technology | 28 nm | 250 nm |
| Power consumption (TDP) | 32 Watt | no data |
| Texture fill rate | 20.00 | 0.29 |
| Floating-point processing power | 0.48 TFLOPS | no data |
| ROPs | 16 | 2 |
| TMUs | 32 | 2 |
| L1 Cache | 32 KB | no data |
| L2 Cache | 256 KB | no data |
Form factor & compatibility
Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
| Laptop size | medium sized | no data |
| Bus support | PCI Express 2.0, PCI Express 3.0 | no data |
| Interface | PCIe 3.0 x16 | AGP 4x |
| Width | no data | 1-slot |
| Supplementary power connectors | no data | None |
VRAM capacity and type
Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.
| Memory type | DDR3\GDDR5 | SDR |
| Maximum RAM amount | 2 GB | 32 MB |
| Memory bus width | 128bit | 128 Bit |
| Memory clock speed | 900 MHz | 167 MHz |
| Memory bandwidth | Up to 64.0 GB/s | 2.672 GB/s |
| Shared memory | - | no data |
Connectivity and outputs
This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.
| Display Connectors | No outputs | 1x VGA |
| HDMI | + | - |
| HDCP | + | - |
| Maximum VGA resolution | Up to 2048x1536 | no data |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| 3D Blu-Ray | + | - |
| Optimus | + | - |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 API | 6.0 |
| Shader Model | 5.1 | no data |
| OpenGL | 4.5 | 1.2 |
| OpenCL | 1.1 | N/A |
| Vulkan | 1.1.126 | N/A |
| CUDA | + | - |
Pros & cons summary
| Recency | 22 March 2012 | 12 October 1999 |
| Maximum RAM amount | 2 GB | 32 MB |
| Chip lithography | 28 nm | 250 nm |
GT 640M has an age advantage of 12 years, a 6300% higher maximum VRAM amount, and a 792.9% more advanced lithography process.
We couldn't decide between GeForce GT 640M and Riva TNT2 PRO. We've got no test results to judge.
Be aware that GeForce GT 640M is a notebook graphics card while Riva TNT2 PRO is a desktop one.
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