HD Graphics 405 vs GeForce GTX 660 Rev. 2
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | 1227 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | no data | 8.83 |
| Architecture | Kepler (2012−2018) | Generation 8.0 (2014−2015) |
| GPU code name | GK104 | Braswell GT1 |
| Market segment | Desktop | Laptop |
| Release date | 13 September 2014 (11 years ago) | 1 April 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 | 960 | 128 |
| Core clock speed | 980 MHz | 200 MHz |
| Boost clock speed | 1032 MHz | 600 MHz |
| Number of transistors | 3,540 million | 189 million |
| Manufacturing process technology | 28 nm | 14 nm |
| Power consumption (TDP) | 140 Watt | 6 Watt |
| Texture fill rate | 82.56 | 9.600 |
| Floating-point processing power | 1.981 TFLOPS | 0.1536 TFLOPS |
| ROPs | 24 | 2 |
| TMUs | 80 | 16 |
| 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).
| Interface | PCIe 3.0 x16 | Ring Bus |
| 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 | System Shared |
| Maximum RAM amount | 2 GB | System Shared |
| Memory bus width | 192 Bit | System Shared |
| Memory clock speed | 1502 MHz | System Shared |
| Memory bandwidth | 144.2 GB/s | no data |
| Shared memory | - | + |
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 | Portable Device Dependent |
| HDMI | + | - |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 12 (11_1) |
| Shader Model | 5.1 | 5.1 |
| OpenGL | 4.6 | 4.3 |
| OpenCL | 1.2 | 3.0 |
| Vulkan | 1.1.126 | + |
| CUDA | 3.0 | - |
Pros & cons summary
| Recency | 13 September 2014 | 1 April 2015 |
| Chip lithography | 28 nm | 14 nm |
| Power consumption (TDP) | 140 Watt | 6 Watt |
HD Graphics 405 has an age advantage of 6 months, a 100% more advanced lithography process, and 2233.3% lower power consumption.
We couldn't decide between GeForce GTX 660 Rev. 2 and HD Graphics 405. We've got no test results to judge.
Be aware that GeForce GTX 660 Rev. 2 is a desktop graphics card while HD Graphics 405 is a notebook one.
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