GeForce 940A vs GTX 660 OEM
Aggregate performance score
We've compared GeForce GTX 660 OEM with GeForce 940A, including specs and performance data.
660 OEM outperforms 940A by a moderate 17% based on our aggregate benchmark results.
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 794 | 847 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 1.82 | 6.13 |
| Architecture | Kepler (2012−2018) | Maxwell (2014−2017) |
| GPU code name | GK104 | GM108 |
| Market segment | Desktop | Laptop |
| Release date | 22 August 2012 (13 years ago) | 13 March 2015 (10 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 | 1152 | 384 |
| Core clock speed | 823 MHz | 1029 MHz |
| Boost clock speed | 888 MHz | 1124 MHz |
| Number of transistors | 3,540 million | no data |
| Manufacturing process technology | 28 nm | 28 nm |
| Power consumption (TDP) | 130 Watt | 33 Watt |
| Texture fill rate | 85.25 | 17.98 |
| Floating-point processing power | 2.046 TFLOPS | 0.8632 TFLOPS |
| ROPs | 32 | 8 |
| TMUs | 96 | 16 |
| L1 Cache | 96 KB | 192 KB |
| L2 Cache | 512 KB | 1024 KB |
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 x16 | PCIe 3.0 x8 |
| Length | 241 mm | no data |
| Width | 2-slot | no data |
| Supplementary power connectors | 1x 6-pin | no data |
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 | DDR3 |
| Maximum RAM amount | 2 GB | 1 GB |
| Memory bus width | 256 Bit | 64 Bit |
| Memory clock speed | 1400 MHz | 1001 MHz |
| Memory bandwidth | 179.2 GB/s | 16.02 GB/s |
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 | 2x DVI, 1x HDMI, 1x DisplayPort | No outputs |
| HDMI | + | - |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 12 (11_0) |
| Shader Model | 5.1 | 5.1 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | 1.1.126 | 1.1.126 |
| CUDA | 3.0 | 5.0 |
Gaming performance
Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.
Pros & cons summary
| Performance score | 2.93 | 2.50 |
| Recency | 22 August 2012 | 13 March 2015 |
| Maximum RAM amount | 2 GB | 1 GB |
| Power consumption (TDP) | 130 Watt | 33 Watt |
GTX 660 OEM has a 17.2% higher aggregate performance score, and a 100% higher maximum VRAM amount.
GeForce 940A, on the other hand, has an age advantage of 2 years, and 293.9% lower power consumption.
The GeForce GTX 660 OEM is our recommended choice as it beats the GeForce 940A in performance tests.
Be aware that GeForce GTX 660 OEM is a desktop graphics card while GeForce 940A is a notebook one.
Other comparisons
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