Radeon Instinct MI300 vs RX 7800 XT
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 35 | not rated |
| Place by popularity | 74 | not in top-100 |
| Cost-effectiveness evaluation | 68.02 | no data |
| Power efficiency | 16.37 | no data |
| Architecture | RDNA 3.0 (2022−2025) | CDNA 3.0 (2023−2024) |
| GPU code name | Navi 32 | Aqua Vanjaram |
| Market segment | Desktop | Workstation |
| Release date | 25 August 2023 (1 year ago) | 4 January 2023 (2 years ago) |
| Launch price (MSRP) | $499 | no data |
Cost-effectiveness evaluation
The higher the performance-to-price ratio, the better. We use the manufacturer's recommended prices for comparison.
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 | 3840 | 14080 |
| Core clock speed | 1295 MHz | 1000 MHz |
| Boost clock speed | 2430 MHz | 1700 MHz |
| Number of transistors | 28,100 million | 153,000 million |
| Manufacturing process technology | 5 nm | 5 nm |
| Power consumption (TDP) | 263 Watt | 600 Watt |
| Texture fill rate | 583.2 | 1,496 |
| Floating-point processing power | 37.32 TFLOPS | 47.87 TFLOPS |
| ROPs | 96 | no data |
| TMUs | 240 | 880 |
| Tensor Cores | no data | 880 |
| Ray Tracing Cores | 60 | no data |
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 4.0 x16 | PCIe 5.0 x16 |
| Length | 267 mm | 267 mm |
| Width | 2-slot | 2-slot |
| Supplementary power connectors | 2x 8-pin | 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 | GDDR6 | HBM3 |
| Maximum RAM amount | 16 GB | 128 GB |
| Memory bus width | 256 Bit | 8192 Bit |
| Memory clock speed | 2438 MHz | 1600 MHz |
| Memory bandwidth | 624.1 GB/s | 3,277 GB/s |
| Shared memory | - | - |
| Resizable BAR | + | + |
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 HDMI 2.1a, 3x DisplayPort 2.1 | No outputs |
| HDMI | + | - |
API and SDK compatibility
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 | 2.2 | 3.0 |
| Vulkan | 1.3 | N/A |
| DLSS | - | + |
Pros & cons summary
| Recency | 25 August 2023 | 4 January 2023 |
| Maximum RAM amount | 16 GB | 128 GB |
| Power consumption (TDP) | 263 Watt | 600 Watt |
RX 7800 XT has an age advantage of 7 months, and 128.1% lower power consumption.
Instinct MI300, on the other hand, has a 700% higher maximum VRAM amount.
We couldn't decide between Radeon RX 7800 XT and Radeon Instinct MI300. We've got no test results to judge.
Be aware that Radeon RX 7800 XT is a desktop card while Radeon Instinct MI300 is a workstation one.
Other comparisons
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