Radeon Instinct MI25 vs GeForce GTX 675MX Mac Edition
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | 477 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | no data | 2.70 |
| Architecture | Kepler (2012−2018) | GCN 5.0 (2017−2020) |
| GPU code name | GK104 | Vega 10 |
| Market segment | Laptop | Workstation |
| Release date | 1 April 2013 (12 years ago) | 27 June 2017 (8 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 | 1344 | 4096 ×2 |
| Core clock speed | 719 MHz | 1400 MHz |
| Boost clock speed | no data | 1500 MHz |
| Number of transistors | 3,540 million | 12,500 million |
| Manufacturing process technology | 28 nm | 14 nm |
| Power consumption (TDP) | 100 Watt | 300 Watt |
| Texture fill rate | 80.53 | 384.0 ×2 |
| Floating-point processing power | 1.933 TFLOPS | 12.29 TFLOPS ×2 |
| ROPs | 32 | 64 ×2 |
| TMUs | 112 | 256 ×2 |
| L1 Cache | 112 KB | 1 MB |
| L2 Cache | 512 KB | 4 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).
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Length | no data | 267 mm |
| Width | no data | 2-slot |
| Supplementary power connectors | no data | 2x 8-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 | HBM2 |
| Maximum RAM amount | 1 GB | 16 GB ×2 |
| Memory bus width | 256 Bit | 2048 Bit ×2 |
| Memory clock speed | 1250 MHz | 852 MHz |
| Memory bandwidth | 160.0 GB/s | 436.2 GB/s ×2 |
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 |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 12 (12_1) |
| Shader Model | 5.1 | 6.4 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 2.0 |
| Vulkan | 1.1.126 | 1.1.125 |
| CUDA | 3.0 | - |
Pros & cons summary
| Recency | 1 April 2013 | 27 June 2017 |
| Maximum RAM amount | 1 GB | 16 GB |
| Chip lithography | 28 nm | 14 nm |
| Power consumption (TDP) | 100 Watt | 300 Watt |
GTX 675MX Mac Edition has 200% lower power consumption.
Instinct MI25, on the other hand, has an age advantage of 4 years, a 1500% higher maximum VRAM amount, and a 100% more advanced lithography process.
We couldn't decide between GeForce GTX 675MX Mac Edition and Radeon Instinct MI25. We've got no test results to judge.
Be aware that GeForce GTX 675MX Mac Edition is a notebook graphics card while Radeon Instinct MI25 is a workstation one.
Other comparisons
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