GeForce GTX 950M Mac Edition vs Radeon R9 M390X
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 504 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 9.53 | no data |
| Architecture | GCN 3.0 (2014−2019) | Maxwell (2014−2017) |
| GPU code name | Amethyst | GM107 |
| Market segment | Laptop | Laptop |
| Release date | 5 May 2015 (10 years ago) | 13 March 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 | 2048 | 640 |
| Core clock speed | 723 MHz | 993 MHz |
| Boost clock speed | no data | 1124 MHz |
| Number of transistors | 5,000 million | 1,870 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Power consumption (TDP) | 100 Watt | 75 Watt |
| Texture fill rate | 92.54 | 44.96 |
| Floating-point processing power | 2.961 TFLOPS | 1.439 TFLOPS |
| ROPs | 32 | 16 |
| TMUs | 128 | 40 |
| L1 Cache | 512 KB | 320 KB |
| L2 Cache | 512 KB | 2 MB |
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 | PCIe 3.0 | no data |
| Interface | PCIe 3.0 x16 | MXM-B (3.0) |
| Supplementary power connectors | None | 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 | DDR3 |
| Maximum RAM amount | 4 GB | 2 GB |
| Memory bus width | 256 Bit | 128 Bit |
| Memory clock speed | no data | 900 MHz |
| Memory bandwidth | 160.0 GB/s | 28.8 GB/s |
| Shared memory | - | no data |
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 | No outputs |
| Eyefinity | + | - |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| FreeSync | + | - |
| HD3D | + | - |
| PowerTune | + | - |
| DualGraphics | + | - |
| ZeroCore | + | - |
| Switchable graphics | + | - |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | DirectX® 12 | 12 (11_0) |
| Shader Model | 6.3 | 5.1 |
| OpenGL | 4.4 | 4.6 |
| OpenCL | Not Listed | 1.2 |
| Vulkan | + | 1.1.126 |
| Mantle | + | - |
| CUDA | - | 5.0 |
Pros & cons summary
| Recency | 5 May 2015 | 13 March 2015 |
| Maximum RAM amount | 4 GB | 2 GB |
| Power consumption (TDP) | 100 Watt | 75 Watt |
R9 M390X has an age advantage of 1 month, and a 100% higher maximum VRAM amount.
GTX 950M Mac Edition, on the other hand, has 33.3% lower power consumption.
We couldn't decide between Radeon R9 M390X and GeForce GTX 950M Mac Edition. We've got no test results to judge.
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