Radeon HD 6670A vs GeForce GTX 780M
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 453 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 5.64 | no data |
| Architecture | Kepler (2012−2018) | TeraScale 2 (2009−2015) |
| GPU code name | GK104 | Turks |
| Market segment | Laptop | Laptop |
| Release date | 11 May 2013 (11 years ago) | 19 April 2011 (13 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 | 1536 | 480 |
| Core clock speed | 823 MHz | 600 MHz |
| Boost clock speed | 797 MHz | no data |
| Number of transistors | 3,540 million | 716 million |
| Manufacturing process technology | 28 nm | 40 nm |
| Power consumption (TDP) | 122 Watt | 45 Watt |
| Texture fill rate | 102.0 | 14.40 |
| Floating-point processing power | 2.448 TFLOPS | 0.576 TFLOPS |
| ROPs | 32 | 8 |
| TMUs | 128 | 24 |
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).
| Laptop size | large | no data |
| Bus support | PCI Express 3.0, PCI Express 2.0 | no data |
| Interface | MXM-B (3.0) | MXM-A (3.0) |
| Supplementary power connectors | None | no data |
| 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 | GDDR5 |
| Maximum RAM amount | 4 GB | 1 GB |
| Standard memory configuration | GDDR5 | no data |
| Memory bus width | 256 Bit | 128 Bit |
| Memory clock speed | 2500 MHz | 1000 MHz |
| Memory bandwidth | 160.0 GB/s | 64 GB/s |
| Shared memory | - | - |
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 | No outputs |
| eDP 1.2 signal support | Up to 3840x2160 | no data |
| LVDS signal support | Up to 1920x1200 | no data |
| VGA аnalog display support | Up to 2048x1536 | no data |
| DisplayPort Multimode (DP++) support | Up to 3840x2160 | no data |
| HDMI | + | - |
| HDCP content protection | + | - |
| 7.1 channel HD audio on HDMI | + | - |
| TrueHD and DTS-HD audio bitstreaming | + | - |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| Blu-Ray 3D Support | + | - |
| H.264, VC1, MPEG2 1080p video decoder | + | - |
| Optimus | + | - |
| 3D Vision / 3DTV Play | + | - |
API compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 API | 11.2 (11_0) |
| Shader Model | 5.1 | 5.0 |
| OpenGL | 4.5 | 4.4 |
| OpenCL | 1.1 | 1.2 |
| Vulkan | 1.1.126 | N/A |
| CUDA | + | - |
Pros & cons summary
| Recency | 11 May 2013 | 19 April 2011 |
| Maximum RAM amount | 4 GB | 1 GB |
| Chip lithography | 28 nm | 40 nm |
| Power consumption (TDP) | 122 Watt | 45 Watt |
GTX 780M has an age advantage of 2 years, a 300% higher maximum VRAM amount, and a 42.9% more advanced lithography process.
HD 6670A, on the other hand, has 171.1% lower power consumption.
We couldn't decide between GeForce GTX 780M and Radeon HD 6670A. We've got no test results to judge.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
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