GeForce GT 420 OEM vs 9400
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Architecture | Tesla (2006−2010) | Fermi (2010−2014) |
| GPU code name | C79 | GF108 |
| Market segment | Desktop | Desktop |
| Release date | 17 April 2007 (17 years ago) | 3 September 2010 (14 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 | 16 | 48 |
| Core clock speed | 450 MHz | 700 MHz |
| Number of transistors | 314 million | 585 million |
| Manufacturing process technology | 65 nm | 40 nm |
| Power consumption (TDP) | 40 Watt | 50 Watt |
| Texture fill rate | 3.600 | 2.800 |
| Floating-point processing power | 0.0352 TFLOPS | 0.1344 TFLOPS |
| ROPs | 4 | 4 |
| TMUs | 8 | 4 |
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 | PCI | PCIe 2.0 x16 |
| Length | no data | 145 mm |
| Width | IGP | 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 | System Shared | DDR3 |
| Maximum RAM amount | System Shared | 1 GB |
| Memory bus width | System Shared | 128 Bit |
| Memory clock speed | System Shared | 900 MHz |
| Memory bandwidth | no data | 28.8 GB/s |
Connectivity and outputs
Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.
| Display Connectors | 1x DVI, 1x VGA, 1x S-Video | 1x DVI, 1x HDMI, 1x VGA |
| HDMI | - | + |
API compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 11.1 (10_0) | 12 (11_0) |
| Shader Model | 4.0 | 5.1 |
| OpenGL | 3.3 | 4.6 |
| OpenCL | N/A | 1.1 |
| Vulkan | N/A | N/A |
| CUDA | - | 2.1 |
Pros & cons summary
| Recency | 17 April 2007 | 3 September 2010 |
| Chip lithography | 65 nm | 40 nm |
| Power consumption (TDP) | 40 Watt | 50 Watt |
GeForce 9400 has 25% lower power consumption.
GT 420 OEM, on the other hand, has an age advantage of 3 years, and a 62.5% more advanced lithography process.
We couldn't decide between GeForce 9400 and GeForce GT 420 OEM. We've got no test results to judge.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Comparisons with similar GPUs
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