Radeon Instinct MI355X vs RTX A5000 Mobile
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 127 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 20.13 | no data |
| Architecture | Ampere (2020−2025) | CDNA 4.0 (2025) |
| GPU code name | GA104 | CDNA Next |
| Market segment | Mobile workstation | Workstation |
| Release date | 12 April 2021 (4 years ago) | 2025 (1 year 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 | 6144 | 16384 |
| Core clock speed | 900 MHz | 1000 MHz |
| Boost clock speed | 1575 MHz | 2400 MHz |
| Number of transistors | 17,400 million | 185,000 million |
| Manufacturing process technology | 8 nm | 3 nm |
| Power consumption (TDP) | 150 Watt | 1400 Watt |
| Texture fill rate | 302.4 | 2,457.6 |
| Floating-point processing power | 19.35 TFLOPS | 78.64 TFLOPS |
| ROPs | 96 | no data |
| TMUs | 192 | 1024 |
| Tensor Cores | 192 | 1024 |
| Ray Tracing Cores | 48 | no data |
| L1 Cache | 6 MB | 4 MB |
| L2 Cache | 4 MB | 16 MB |
| L3 Cache | no data | 256 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 |
| Interface | PCIe 4.0 x16 | PCIe 5.0 x16 |
| Width | no data | OAM Module |
| Supplementary power connectors | no data | None |
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 | GDDR6 | HBM3e |
| Maximum RAM amount | 16 GB | 288 GB |
| Memory bus width | 256 Bit | 8192 Bit |
| Memory clock speed | 1750 MHz | 2000 MHz |
| Memory bandwidth | 448.0 GB/s | 8.19 TB/s |
| Shared memory | - | - |
| 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 | Portable Device Dependent | No outputs |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 Ultimate (12_2) | N/A |
| Shader Model | 6.7 | N/A |
| OpenGL | 4.6 | N/A |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.3 | N/A |
| CUDA | 8.6 | - |
| DLSS | + | + |
Pros & cons summary
| Maximum RAM amount | 16 GB | 288 GB |
| Chip lithography | 8 nm | 3 nm |
| Power consumption (TDP) | 150 Watt | 1400 Watt |
RTX A5000 Mobile has 833.3% lower power consumption.
Instinct MI355X, on the other hand, has a 1700% higher maximum VRAM amount, and a 166.7% more advanced lithography process.
We couldn't decide between RTX A5000 Mobile and Radeon Instinct MI355X. We've got no test results to judge.
Be aware that RTX A5000 Mobile is a mobile workstation graphics card while Radeon Instinct MI355X is a workstation one.
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