Radeon RX 6800 3456SP vs Instinct MI325X
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Architecture | CDNA 3.0 (2023−2024) | RDNA 2.0 (2020−2025) |
| GPU code name | Aqua Vanjaram | Navi 21 |
| Market segment | Workstation | Desktop |
| Release date | October 2024 (1 year ago) | no data |
| Launch price (MSRP) | no data | $579 |
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 | 19456 | 3456 |
| Core clock speed | 1000 MHz | 1700 MHz |
| Boost clock speed | 2100 MHz | 2250 MHz |
| Number of transistors | 153,000 million | 26,800 million |
| Manufacturing process technology | 5 nm | 7 nm |
| Power consumption (TDP) | 1000 Watt | 250 Watt |
| Texture fill rate | 2,553.6 | 486.0 |
| Floating-point processing power | 81.72 TFLOPS | 15.55 TFLOPS |
| ROPs | no data | 96 |
| TMUs | 1216 | 216 |
| Tensor Cores | 1216 | no data |
| Ray Tracing Cores | no data | 54 |
| L0 Cache | no data | 864 KB |
| L1 Cache | 4.8 MB | 768 KB |
| L2 Cache | 16 MB | 4 MB |
| L3 Cache | 256 MB | 128 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 5.0 x16 | PCIe 4.0 x16 |
| Length | no data | 267 mm |
| Width | OAM Module | 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 | HBM3e | GDDR6 |
| Maximum RAM amount | 288 GB | 16 GB |
| Memory bus width | 8192 Bit | 256 Bit |
| Memory clock speed | 2525 MHz | 2000 MHz |
| Memory bandwidth | 10.3 TB/s | 512.0 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 | 1x HDMI 2.1, 2x DisplayPort 1.4a, 1x USB Type-C |
| HDMI | - | + |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | N/A | 12 Ultimate (12_2) |
| Shader Model | N/A | 6.8 |
| OpenGL | N/A | 4.6 |
| OpenCL | 3.0 | 2.1 |
| Vulkan | N/A | 1.3 |
| DLSS | + | - |
Pros & cons summary
| Maximum RAM amount | 288 GB | 16 GB |
| Chip lithography | 5 nm | 7 nm |
| Power consumption (TDP) | 1000 Watt | 250 Watt |
Instinct MI325X has a 1700% higher maximum VRAM amount, and a 40% more advanced lithography process.
RX 6800 3456SP, on the other hand, has 300% lower power consumption.
We couldn't decide between Radeon Instinct MI325X and Radeon RX 6800 3456SP. We've got no test results to judge.
Be aware that Radeon Instinct MI325X is a workstation graphics card while Radeon RX 6800 3456SP is a desktop one.
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