RTX A400 vs GeForce GTX 660
Aggregate performance score
We've compared GeForce GTX 660 with RTX A400, including specs and performance data.
RTX A400 outperforms GTX 660 by a considerable 48% 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 | 502 | 407 |
| Place by popularity | 100 | not in top-100 |
| Cost-effectiveness evaluation | 3.11 | no data |
| Power efficiency | 5.37 | 22.23 |
| Architecture | Kepler (2012−2018) | Ampere (2020−2025) |
| GPU code name | GK106 | GA107 |
| Market segment | Desktop | Workstation |
| Release date | 6 September 2012 (13 years ago) | 16 April 2024 (2 years ago) |
| Launch price (MSRP) | $229 | no data |
Cost-effectiveness evaluation
The higher the ratio, the better. We use the manufacturer's recommended prices.
Performance to price scatter graph
Currently popular graphics cards are shown for comparison.
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 | 960 | 768 |
| Core clock speed | 980 MHz | 727 MHz |
| Boost clock speed | 1033 MHz | 1762 MHz |
| Number of transistors | 2,540 million | 8,700 million |
| Manufacturing process technology | 28 nm | 8 nm |
| Power consumption (TDP) | 140 Watt | 50 Watt |
| Texture fill rate | 82.56 | 42.29 |
| Floating-point processing power | 1.981 TFLOPS | 2.706 TFLOPS |
| ROPs | 24 | 16 |
| TMUs | 80 | 24 |
| Tensor Cores | no data | 24 |
| Ray Tracing Cores | no data | 6 |
| L1 Cache | 80 KB | no data |
| L2 Cache | 384 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).
| Bus support | PCI Express 3.0 | no data |
| Interface | PCIe 3.0 x16 | PCIe 4.0 x8 |
| Length | 241 mm | 163 mm |
| Height | 4.376" (11.1 cm) | no data |
| Width | 2-slot | 1-slot |
| Supplementary power connectors | 1x 6-pin | None |
| 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 | GDDR5 | GDDR6 |
| Maximum RAM amount | 2 GB | 4 GB |
| Memory bus width | 192-bit GDDR5 | 64 Bit |
| Memory clock speed | 6.0 GB/s | 1500 MHz |
| Memory bandwidth | 144.2 GB/s | 96 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 | One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort | 4x mini-DisplayPort 1.4a |
| Multi monitor support | 4 displays | no data |
| HDMI | + | - |
| HDCP | + | - |
| Maximum VGA resolution | 2048x1536 | no data |
| Audio input for HDMI | Internal | no data |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| 3D Blu-Ray | + | - |
| 3D Gaming | + | - |
| 3D Vision | + | - |
API and SDK support
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 | 4.3 | 4.6 |
| OpenCL | 1.2 | 3.0 |
| Vulkan | 1.1.126 | 1.3 |
| CUDA | + | 8.6 |
| DLSS | - | + |
Synthetic benchmarks
Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.
Combined synthetic benchmark score
This is our combined benchmark score.
Passmark
This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.
GeekBench 5 OpenCL
Geekbench 5 is a widespread graphics card benchmark combined from 11 different test scenarios. All these scenarios rely on direct usage of GPU's processing power, no 3D rendering is involved. This variation uses OpenCL API by Khronos Group.
GeekBench 5 Vulkan
Geekbench 5 is a widespread graphics card benchmark combined from 11 different test scenarios. All these scenarios rely on direct usage of GPU's processing power, no 3D rendering is involved. This variation uses Vulkan API by AMD & Khronos Group.
Gaming performance
Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.
Average FPS across all PC games
Here are the average frames per second in a large set of popular games across different resolutions:
| Full HD | 47
−38.3%
| 65−70
+38.3%
|
Cost per frame, $
| 1080p | 4.87 | no data |
Pros & cons summary
| Performance score | 9.72 | 14.37 |
| Recency | 6 September 2012 | 16 April 2024 |
| Maximum RAM amount | 2 GB | 4 GB |
| Chip lithography | 28 nm | 8 nm |
| Power consumption (TDP) | 140 Watt | 50 Watt |
RTX A400 has a 48% higher aggregate performance score, an age advantage of 11 years, a 100% higher maximum VRAM amount, a 250% more advanced lithography process, and 180% lower power consumption.
The RTX A400 is our recommended choice as it beats the GeForce GTX 660 in performance tests.
Be aware that GeForce GTX 660 is a desktop graphics card while RTX A400 is a workstation one.
Other comparisons
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
