Quadro4 400 NVS PCI vs GeForce 940A
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 784 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 6.02 | no data |
| Architecture | Maxwell (2014−2017) | Celsius (1999−2005) |
| GPU code name | GM108 | NV17 A3 |
| Market segment | Laptop | Workstation |
| Release date | 13 March 2015 (9 years ago) | 16 July 2004 (20 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 | 1029 MHz | 220 MHz |
| Boost clock speed | 1124 MHz | no data |
| Number of transistors | no data | 29 million |
| Manufacturing process technology | 28 nm | 150 nm |
| Power consumption (TDP) | 33 Watt | 18 Watt |
| Texture fill rate | 17.98 | 0.88 |
| Floating-point processing power | 0.8632 TFLOPS | no data |
| ROPs | 8 | 2 |
| TMUs | 16 | 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 | PCIe 3.0 x8 | PCI |
| 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 | DDR |
| Maximum RAM amount | 1 GB | 64 MB |
| Memory bus width | 64 Bit | 128 Bit |
| Memory clock speed | 1001 MHz | 166 MHz |
| Memory bandwidth | 16.02 GB/s | 5.312 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 | No outputs | 2x LFH60 |
API compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 8.0 |
| Shader Model | 5.1 | no data |
| OpenGL | 4.6 | 1.3 |
| OpenCL | 1.2 | N/A |
| Vulkan | 1.1.126 | N/A |
| CUDA | 5.0 | - |
Pros & cons summary
| Recency | 13 March 2015 | 16 July 2004 |
| Maximum RAM amount | 1 GB | 64 MB |
| Chip lithography | 28 nm | 150 nm |
| Power consumption (TDP) | 33 Watt | 18 Watt |
GeForce 940A has an age advantage of 10 years, a 1500% higher maximum VRAM amount, and a 435.7% more advanced lithography process.
Quadro4 400 NVS PCI, on the other hand, has 83.3% lower power consumption.
We couldn't decide between GeForce 940A and Quadro4 400 NVS PCI. We've got no test results to judge.
Be aware that GeForce 940A is a notebook card while Quadro4 400 NVS PCI is a workstation one.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
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