GeForce GTX 680 Mac Edition vs GTX 950A
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 621 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 6.35 | no data |
| Architecture | Maxwell (2014−2017) | Kepler (2012−2018) |
| GPU code name | GM107 | GK104 |
| Market segment | Laptop | Desktop |
| Release date | 13 March 2015 (10 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 | 640 | 1536 |
| Core clock speed | 993 MHz | 1006 MHz |
| Boost clock speed | 1124 MHz | 1058 MHz |
| Number of transistors | 1,870 million | 3,540 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Power consumption (TDP) | 75 Watt | 195 Watt |
| Texture fill rate | 44.96 | 135.4 |
| Floating-point processing power | 1.439 TFLOPS | 3.25 TFLOPS |
| ROPs | 16 | 32 |
| TMUs | 40 | 128 |
| L1 Cache | 320 KB | 128 KB |
| L2 Cache | 2 MB | 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 | MXM-B (3.0) | 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 | DDR3 | GDDR5 |
| Maximum RAM amount | 2 GB | 2 GB |
| Memory bus width | 128 Bit | 256 Bit |
| Memory clock speed | 1001 MHz | 1502 MHz |
| Memory bandwidth | 32.03 GB/s | 192.3 GB/s |
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 support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 12 (11_0) |
| Shader Model | 5.1 | 5.1 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | 1.1.126 | 1.1.126 |
| CUDA | 5.0 | 3.0 |
Pros & cons summary
| Recency | 13 March 2015 | 3 April 2013 |
| Power consumption (TDP) | 75 Watt | 195 Watt |
GTX 950A has an age advantage of 1 year, and 160% lower power consumption.
We couldn't decide between GeForce GTX 950A and GeForce GTX 680 Mac Edition. We've got no test results to judge.
Be aware that GeForce GTX 950A is a notebook graphics card while GeForce GTX 680 Mac Edition is a desktop one.
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