GeForce 8100 + nForce 720a vs 8400 GS
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1341 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 0.79 | no data |
| Architecture | Tesla (2006−2010) | Tesla (2006−2010) |
| GPU code name | G86 | C78 |
| Market segment | Desktop | Desktop |
| Release date | 17 April 2007 (19 years ago) | 6 May 2008 (18 years ago) |
| Launch price (MSRP) | $29.99 | no data |
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Real power consumption of some graphics cards can well exceed their nominal TDP, especially if overclocked.
| Pipelines / CUDA cores | 16 | 16 |
| Core clock speed | 459 MHz | 500 MHz |
| Number of transistors | 210 million | 210 million |
| Manufacturing process technology | 80 nm | 80 nm |
| Power consumption (TDP) | 40 Watt | 40 Watt |
| Texture fill rate | 3.672 | 4.000 |
| Floating-point processing power | 0.02938 TFLOPS | 0.0384 TFLOPS |
| ROPs | 4 | 4 |
| TMUs | 8 | 8 |
| L2 Cache | 16 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).
| Interface | PCIe 1.0 x16 | PCI |
| Length | 170 mm | no data |
| Width | 1-slot | IGP |
| Supplementary power connectors | None | no data |
| SLI options | + | - |
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 | DDR2 | System Shared |
| Maximum RAM amount | 256 MB | System Shared |
| Standard memory config per GPU | 256 MB | no data |
| Memory bus width | 64 Bit | System Shared |
| Memory clock speed | 400 MHz | System Shared |
| Memory bandwidth | 6.4 GB/s | no data |
| 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 | 1x DVI, 1x VGA, 1x S-Video | 1x DVI, 1x VGA, 1x S-Video |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 11.1 (10_0) | 11.1 (10_0) |
| Shader Model | 4.0 | 4.0 |
| OpenGL | 2.1 | 3.3 |
| OpenCL | 1.1 | N/A |
| Vulkan | N/A | N/A |
| CUDA | 1.1 | - |
Other comparisons
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
