Radeon Instinct MI25 vs Riva TNT2 M64
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | 386 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | no data | 2.98 |
| Architecture | Fahrenheit (1998−2000) | GCN 5.0 (2017−2020) |
| GPU code name | NV5 B6 | Vega 10 |
| Market segment | Desktop | Workstation |
| Release date | 12 October 1999 (25 years ago) | 27 June 2017 (7 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 | no data | 4096 |
| Core clock speed | 125 MHz | 1400 MHz |
| Boost clock speed | no data | 1500 MHz |
| Number of transistors | 15 million | 12,500 million |
| Manufacturing process technology | 250 nm | 14 nm |
| Power consumption (TDP) | no data | 300 Watt |
| Texture fill rate | 0.25 | 384.0 |
| Floating-point processing power | no data | 12.29 TFLOPS |
| ROPs | 2 | 64 |
| TMUs | 2 | 256 |
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 | AGP 4x | PCIe 3.0 x16 |
| Length | no data | 267 mm |
| Width | 1-slot | 2-slot |
| Supplementary power connectors | None | 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 | SDR | HBM2 |
| Maximum RAM amount | 16 MB | 16 GB |
| Memory bus width | 64 Bit | 2048 Bit |
| Memory clock speed | 143 MHz | 852 MHz |
| Memory bandwidth | 1.144 GB/s | 436.2 GB/s |
Connectivity and outputs
Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.
| Display Connectors | 1x VGA | No outputs |
API compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 6.0 | 12 (12_1) |
| Shader Model | no data | 6.4 |
| OpenGL | 1.2 | 4.6 |
| OpenCL | N/A | 2.0 |
| Vulkan | N/A | 1.1.125 |
Pros & cons summary
| Recency | 12 October 1999 | 27 June 2017 |
| Maximum RAM amount | 16 MB | 16 GB |
| Chip lithography | 250 nm | 14 nm |
Instinct MI25 has an age advantage of 17 years, a 102300% higher maximum VRAM amount, and a 1685.7% more advanced lithography process.
We couldn't decide between Riva TNT2 M64 and Radeon Instinct MI25. We've got no test results to judge.
Be aware that Riva TNT2 M64 is a desktop card while Radeon Instinct MI25 is a workstation one.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
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