GeForce GTX 680MX Mac Edition vs Radeon HD 6450 GDDR5
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1182 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 2.53 | no data |
| Architecture | Terascale 2 (2009−2015) | Kepler (2012−2018) |
| GPU code name | Caicos | GK104 |
| Market segment | Desktop | Laptop |
| Release date | 18 April 2011 (14 years ago) | 23 October 2012 (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 | 160 | 1536 |
| Core clock speed | 750 MHz | 719 MHz |
| Number of transistors | no data | 3,540 million |
| Manufacturing process technology | 40 nm | 28 nm |
| Power consumption (TDP) | 27 Watt | 122 Watt |
| Texture fill rate | no data | 92.03 |
| Floating-point processing power | no data | 2.209 TFLOPS |
| ROPs | no data | 32 |
| TMUs | no data | 128 |
| L1 Cache | no data | 128 KB |
| L2 Cache | no data | 512 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 | no data | PCIe 3.0 x16 |
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 | 1 GB | 2 GB |
| Memory bus width | 64 Bit | 256 Bit |
| Memory clock speed | 900 MHz | 1250 MHz |
| Memory bandwidth | no data | 160.0 GB/s |
| 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 | no data | No outputs |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 11 | 12 (11_0) |
| Shader Model | no data | 5.1 |
| OpenGL | no data | 4.6 |
| OpenCL | no data | 1.2 |
| Vulkan | - | 1.1.126 |
| CUDA | - | 3.0 |
Pros & cons summary
| Recency | 18 April 2011 | 23 October 2012 |
| Maximum RAM amount | 1 GB | 2 GB |
| Chip lithography | 40 nm | 28 nm |
| Power consumption (TDP) | 27 Watt | 122 Watt |
HD 6450 GDDR5 has 351.9% lower power consumption.
GTX 680MX Mac Edition, on the other hand, has an age advantage of 1 year, a 100% higher maximum VRAM amount, and a 42.9% more advanced lithography process.
We couldn't decide between Radeon HD 6450 GDDR5 and GeForce GTX 680MX Mac Edition. We've got no test results to judge.
Be aware that Radeon HD 6450 GDDR5 is a desktop graphics card while GeForce GTX 680MX Mac Edition is a notebook one.
Other comparisons
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