GeForce GTX 680 Mac Edition vs Radeon R7 M445
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 889 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 6.86 | no data |
| Architecture | GCN 3.0 (2014−2019) | Kepler (2012−2018) |
| GPU code name | Meso | GK104 |
| Market segment | Laptop | Desktop |
| Release date | 15 May 2016 (9 years ago) | 3 April 2013 (12 years ago) |
| Launch price (MSRP) | no data | $599 |
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 | 320 | 1536 |
| Core clock speed | 780 MHz | 1006 MHz |
| Boost clock speed | 920 MHz | 1058 MHz |
| Number of transistors | 1,550 million | 3,540 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Power consumption (TDP) | 15-25 Watt | 195 Watt |
| Texture fill rate | 18.40 | 135.4 |
| Floating-point processing power | 0.5888 TFLOPS | 3.25 TFLOPS |
| ROPs | 8 | 32 |
| TMUs | 20 | 128 |
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 x8 | PCIe 2.0 x16 |
| Length | no data | 254 mm |
| Width | no data | 2-slot |
| Supplementary power connectors | no data | 2x 6-pin |
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 | 2 GB |
| Memory bus width | 64 Bit | 256 Bit |
| Memory clock speed | 1000 MHz | 1502 MHz |
| Memory bandwidth | 32 GB/s | 192.3 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 outputs | 2x DVI, 1x HDMI, 1x DisplayPort |
| HDMI | - | + |
API and SDK compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (12_0) | 12 (11_0) |
| Shader Model | 6.0 | 5.1 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 1.2 |
| Vulkan | 1.2.131 | 1.1.126 |
| CUDA | - | 3.0 |
Pros & cons summary
| Recency | 15 May 2016 | 3 April 2013 |
| Maximum RAM amount | 4 GB | 2 GB |
| Power consumption (TDP) | 15 Watt | 195 Watt |
R7 M445 has an age advantage of 3 years, a 100% higher maximum VRAM amount, and 1200% lower power consumption.
We couldn't decide between Radeon R7 M445 and GeForce GTX 680 Mac Edition. We've got no test results to judge.
Be aware that Radeon R7 M445 is a notebook graphics card while GeForce GTX 680 Mac Edition is a desktop one.
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