RTX A4 Mobile vs GeForce 945A
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 689 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 10.20 | no data |
| Architecture | Maxwell (2014−2017) | Ampere (2020−2025) |
| GPU code name | GM108 | GA107 |
| Market segment | Laptop | Mobile workstation |
| Release date | 13 March 2015 (10 years ago) | 12 April 2021 (4 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 | 2048 |
| Core clock speed | 1006 MHz | 1297 MHz |
| Boost clock speed | 1189 MHz | 1770 MHz |
| Manufacturing process technology | 28 nm | 8 nm |
| Power consumption (TDP) | 33 Watt | no data |
| Texture fill rate | 28.54 | 113.3 |
| Floating-point processing power | 0.9132 TFLOPS | 7.25 TFLOPS |
| ROPs | 8 | 32 |
| TMUs | 24 | 64 |
| Tensor Cores | no data | 64 |
| Ray Tracing Cores | no data | 16 |
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 | PCIe 4.0 x8 |
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 | GDDR5 | GDDR6 |
| Maximum RAM amount | 1 GB | 4 GB |
| Memory bus width | 64 Bit | 128 Bit |
| Memory clock speed | 1253 MHz | 1750 MHz |
| Memory bandwidth | 40.1 GB/s | 224.0 GB/s |
| Resizable BAR | - | + |
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 | Portable Device Dependent |
API and SDK compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 12 Ultimate (12_2) |
| Shader Model | 5.1 | 6.7 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 3.0 |
| Vulkan | 1.1.126 | 1.3 |
| CUDA | 5.0 | 8.6 |
| DLSS | - | + |
Pros & cons summary
| Recency | 13 March 2015 | 12 April 2021 |
| Maximum RAM amount | 1 GB | 4 GB |
| Chip lithography | 28 nm | 8 nm |
RTX A4 Mobile has an age advantage of 6 years, a 300% higher maximum VRAM amount, and a 250% more advanced lithography process.
We couldn't decide between GeForce 945A and RTX A4 Mobile. We've got no test results to judge.
Be aware that GeForce 945A is a notebook graphics card while RTX A4 Mobile is a mobile workstation one.
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