RTX A4000 vs Radeon Instinct MI8
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | 87 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | no data | 25.66 |
| Architecture | GCN 3.0 (2014−2019) | Ampere (2020−2025) |
| GPU code name | Fiji | GA104 |
| Market segment | Workstation | Workstation |
| Release date | 12 December 2016 (9 years ago) | 12 April 2021 (5 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. Real power consumption of some graphics cards can well exceed their nominal TDP, especially if overclocked.
| Pipelines / CUDA cores | 4096 | 6144 |
| Core clock speed | 1000 MHz | 735 MHz |
| Boost clock speed | no data | 1560 MHz |
| Number of transistors | 8,900 million | 17,400 million |
| Manufacturing process technology | 28 nm | 8 nm |
| Power consumption (TDP) | 175 Watt | 140 Watt |
| Texture fill rate | 256.0 | 299.5 |
| Floating-point processing power | 8.192 TFLOPS | 19.17 TFLOPS |
| ROPs | 64 | 96 |
| TMUs | 256 | 192 |
| Tensor Cores | no data | 192 |
| Ray Tracing Cores | no data | 48 |
| L1 Cache | 1 MB | 6 MB |
| L2 Cache | 2 MB | 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 4.0 x16 |
| Length | 152 mm | 241 mm |
| Width | 2-slot | 1-slot |
| Supplementary power connectors | 1x 8-pin | 1x 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 | HBM | GDDR6 |
| Maximum RAM amount | 4 GB | 16 GB |
| Memory bus width | 4096 Bit | 256 Bit |
| Memory clock speed | 500 MHz | 1750 MHz |
| Memory bandwidth | 512.0 GB/s | 448.0 GB/s |
| Resizable BAR | - | + |
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 | 4x DisplayPort 1.4a |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (12_0) | 12 Ultimate (12_2) |
| Shader Model | 6.3 | 6.7 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 3.0 |
| Vulkan | 1.2.131 | 1.3 |
| CUDA | - | 8.6 |
| DLSS | - | + |
Pros & cons summary
| Recency | 12 December 2016 | 12 April 2021 |
| Maximum RAM amount | 4 GB | 16 GB |
| Chip lithography | 28 nm | 8 nm |
| Power consumption (TDP) | 175 Watt | 140 Watt |
RTX A4000 has an age advantage of 4 years, a 300% higher maximum VRAM amount, a 250% more advanced lithography process, and 25% lower power consumption.
We couldn't decide between Radeon Instinct MI8 and RTX A4000. We've got no test results to judge.
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