AMD Instinct MI300X vs AMD Radeon Pro VII Comparison

The AMD Instinct MI300X and the AMD Radeon Pro VII represent two distinct eras of AMD’s professional compute strategy. The former is a massive data-center accelerator built on the latest CDNA architecture, while the latter is a workstation-oriented card from the GCN generation. The database contains one overlapping benchmark, Geekbench OpenCL, where the results are stark. This analysis walks through the recorded data, architectural differences, and the resulting use-case split.

Head-to-Head Benchmarks

The only common benchmark in the database is Geekbench OpenCL, and the result is a decisive victory for the AMD Instinct MI300X. The Instinct MI300X scored 317,994, while the Radeon Pro VII scored 90,148. This translates to a delta of 252.7% in favor of the Instinct MI300X. In practical terms, the Instinct MI300X delivers more than three times the raw OpenCL performance of the Radeon Pro VII. This is not a close contest; it is a generational gap expressed in raw compute throughput.

To contextualize the MI300X’s score, the database places it in the 100th percentile of all GPUs, meaning it outperforms every other recorded GPU in the database on this metric. Its nearest rivals are all NVIDIA data-center parts: the NVIDIA B200 scores 345,482 (8% higher), the NVIDIA H200 NVL scores 334,891 (5% higher), the NVIDIA L40S scores 295,763 (7.5% lower), and the NVIDIA RTX 6000 Ada Generation scores 287,237 (10.7% lower). The MI300X sits comfortably in the upper echelon, roughly 7.5% ahead of the L40S and 10.7% ahead of the RTX 6000 Ada, while trailing the B200 and H200 by single-digit margins. This indicates that the MI300X is competitive with the fastest accelerators currently recorded, not just a step above the Radeon Pro VII.

The Radeon Pro VII, by contrast, sits in the 93rd percentile of all GPUs, which is still a high ranking, but the raw score tells a different story. Its nearest rivals in the database are the AMD Radeon RX 7900M (scoring 97,487, which is 0.4% higher), the AMD Radeon Instinct MI60 (scoring 92,466, which is 5% lower), the NVIDIA Quadro RTX 6000 (scoring 101,872, which is 4.7% higher), and the NVIDIA RTX A4500 (scoring 91,671, which is 6% lower). The Radeon Pro VII’s score of 90,148 places it near these mid-range professional cards, but it is clearly several tiers below the modern data-center accelerators. The delta of 252.7% between the two AMD cards is the single most important data point in this comparison.

Architecture Differences

The architectural divide between these two GPUs is profound. The AMD Instinct MI300X is built on the CDNA 3.0 architecture, using a chip codenamed Aqua Vanjaram, while the Radeon Pro VII uses the older GCN 5.1 architecture with the Vega 20 chip. The process nodes also differ: the MI300X uses a 5 nm process from TSMC, whereas the Radeon Pro VII uses a 7 nm process, also from TSMC. This node difference contributes to a massive disparity in transistor counts. The MI300X packs 153,000 million transistors on a die size of 1017 mm², resulting in a transistor density of 150.4 million transistors per mm². The Radeon Pro VII, in contrast, has 13,230 million transistors on a 331 mm² die, with a density of 40.0 million per mm². The MI300X has over eleven times the transistor count and a density nearly four times higher.

The compute units reflect this scale. The MI300X features 19,456 shading units, 1,216 texture mapping units (TMUs), and no ROPs (a common trait for pure compute accelerators). Its texture rate is 2,553.6 GTexel/s, and its pixel rate is recorded as 0 MPixel/s, as it has no display outputs. The Radeon Pro VII has 3,840 shading units, 240 TMUs, and 64 ROPs. Its texture rate is 408.0 GTexel/s, and its pixel rate is 108.8 GPixel/s. The MI300X has roughly five times the shading units and TMUs, but the Radeon Pro VII retains a rasterization pipeline that the MI300X lacks entirely.

Clock speeds also differ significantly. The Radeon Pro VII has a base clock of 1400 MHz and a boost clock of 1700 MHz. The MI300X has a lower base clock of 1000 MHz but a higher boost clock of 2100 MHz. This suggests that the MI300X is designed to scale up aggressively under compute loads, while the Radeon Pro VII has a more modest boost range. The floating-point performance is where the gap becomes extreme. The MI300X delivers 81.72 TFLOPS of FP32 and the same 81.72 TFLOPS for FP16 (a 1:1 ratio). The Radeon Pro VII delivers 13.06 TFLOPS FP32 and 26.11 TFLOPS FP16 (a 2:1 ratio). The MI300X is over six times faster in FP32 and over three times faster in FP16.

Memory architecture is another major differentiator. The MI300X uses 192 GB of HBM3 memory with an 8192-bit bus, yielding a bandwidth of 5.32 TB/s. The Radeon Pro VII uses 16 GB of HBM2 memory with a 4096-bit bus, yielding 1.02 TB/s. The MI300X has twelve times the memory capacity and over five times the bandwidth. The memory clock is also higher on the MI300X: 1300 MHz (5.2 Gbps effective) versus 1000 MHz (2 Gbps effective) on the Radeon Pro VII. The MI300X also uses a PCIe 5.0 x16 interface, while the Radeon Pro VII uses PCIe 4.0 x16.

Where Each One Wins

The benchmark data shows only one winner in the shared test: the AMD Instinct MI300X wins the Geekbench OpenCL test, and it wins by a massive margin. There are no recorded benchmarks where the Radeon Pro VII beats the MI300X. However, the Radeon Pro VII has capabilities that the MI300X does not, based on the specification differences. The Radeon Pro VII has 64 ROPs and a pixel rate of 108.8 GPixel/s, which means it can handle traditional rasterization workloads. It also has six mini-DisplayPort 1.4a outputs, allowing direct display connectivity. The MI300X has no display outputs and no ROPs, making it unsuitable for any graphics-oriented task that requires rendering to a screen.

The Radeon Pro VII also supports standard graphics APIs: DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.3. The MI300X has no recorded API support for DirectX, OpenGL, or Vulkan, which reinforces its role as a pure compute accelerator. For tasks like 3D rendering, video editing with GPU acceleration, or any workload that relies on a graphical output, the Radeon Pro VII is the only viable option between the two. It also has a lower power draw, with a TDP of 250 W versus the MI300X’s 750 W, and a suggested PSU of 600 W versus 1150 W. This makes the Radeon Pro VII far easier to integrate into a standard workstation, especially one with a single power supply.

The MI300X wins every compute-heavy scenario. Its FP32 throughput of 81.72 TFLOPS is over six times the Radeon Pro VII’s 13.06 TFLOPS. Its memory bandwidth of 5.32 TB/s is over five times higher. Its 192 GB of memory allows it to hold massive datasets, whereas the Radeon Pro VII’s 16 GB is a bottleneck for large-scale AI models or scientific simulations. The MI300X also has a higher texture rate (2,553.6 GTexel/s versus 408.0 GTexel/s), which benefits compute tasks that involve texture sampling, though the lack of ROPs means it cannot output frames.

The Verdict

The data is unambiguous for compute workloads. The AMD Instinct MI300X is the superior choice for any task that prioritizes raw computational throughput, memory capacity, or bandwidth. Its Geekbench OpenCL score is 252.7% higher than the Radeon Pro VII, and it ranks in the 100th percentile of all GPUs. It is competitive with the fastest NVIDIA accelerators in the database, trailing the B200 by 8% and the H200 NVL by 5%, while leading the L40S by 7.5% and the RTX 6000 Ada by 10.7%. For AI training, large-scale scientific computing, or any workload that can utilize 192 GB of HBM3 memory and 81.72 TFLOPS of FP32, the MI300X is the clear pick.

The Radeon Pro VII, despite being end-of-life, remains relevant for a specific niche. Its 93rd percentile ranking among all GPUs is respectable, and its nearest rivals (RX 7900M, Instinct MI60, Quadro RTX 6000, RTX A4500) are all within a 6% range of its score. But its strengths lie outside the compute benchmarks. It has display outputs, ROPs, and full graphics API support, making it a functional workstation card. Its 250 W TDP and 600 W suggested PSU make it practical for a single-GPU desktop system. The MI300X, with its 750 W TDP, 1150 W suggested PSU, and OAM module form factor, is a data-center component.

The verdict depends on the user. If the workflow involves rendering to a screen, using graphics APIs, or fitting into a standard workstation chassis, the Radeon Pro VII is the only choice. If the workflow is purely compute, headless, and performance-critical, the MI300X is overwhelmingly superior. The benchmark data does not support any other conclusion.

FAQ

Q: Which GPU has a higher Geekbench OpenCL score?

A: The AMD Instinct MI300X scores 317,994, while the AMD Radeon Pro VII scores 90,148, a difference of 252.7%.

Q: How does the AMD Instinct MI300X compare to its nearest rivals?

A: The MI300X is 7.5% ahead of the NVIDIA L40S and 10.7% ahead of the NVIDIA RTX 6000 Ada Generation, but trails the NVIDIA B200 by 8% and the NVIDIA H200 NVL by 5%.

Q: Does the Radeon Pro VII have any advantages over the MI300X?

A: Yes, the Radeon Pro VII has 64 ROPs, a pixel rate of 108.8 GPixel/s, and six mini-DisplayPort 1.4a outputs, while the MI300X has no ROPs and no display outputs. It also supports DirectX 12, OpenGL 4.6, and Vulkan 1.3, which the MI300X does not.

Q: What is the memory configuration difference?

A: The MI300X has 192 GB of HBM3 memory with an 8192-bit bus and 5.32 TB/s bandwidth. The Radeon Pro VII has 16 GB of HBM2 memory with a 4096-bit bus and 1.02 TB/s bandwidth.

Q: Which GPU requires more power?

A: The MI300X has a TDP of 750 W and a suggested PSU of 1150 W. The Radeon Pro VII has a TDP of 250 W and a suggested PSU of 600 W.

Q: Is the Radeon Pro VII still in production?

A: No, the Radeon Pro VII is listed as end-of-life, while the MI300X has no recorded production status.

Specification Differences

| Specification | AMD Instinct MI300X | AMD Radeon Pro VII |

| :--- | :--- | :--- |

| Architecture | CDNA 3.0 | GCN 5.1 |

| Process Node | 5 nm | 7 nm |

| Transistors | 153,000 million | 13,230 million |

| Die Size | 1017 mm² | 331 mm² |

| Transistor Density | 150.4M / mm² | 40.0M / mm² |

| Base Clock | 1000 MHz | 1400 MHz |

| Boost Clock | 2100 MHz | 1700 MHz |

| Memory Clock | 1300 MHz (5.2 Gbps effective) | 1000 MHz (2 Gbps effective) |

| Memory Size | 192 GB | 16 GB |

| Memory Type | HBM3 | HBM2 |

| Memory Bus Width | 8192 bit | 4096 bit |

| Memory Bandwidth | 5.32 TB/s | 1.02 TB/s |

| Shading Units | 19456 | 3840 |

| TMUs | 1216 | 240 |

| ROPs | 0 | 64 |

| Pixel Rate | 0 MPixel/s | 108.8 GPixel/s |

| Texture Rate | 2,553.6 GTexel/s | 408.0 GTexel/s |

| FP32 Performance | 81.72 TFLOPS | 13.06 TFLOPS |

| FP16 Performance | 81.72 TFLOPS (1:1) | 26.11 TFLOPS (2:1) |

| TDP | 750 W | 250 W |

| Slot Width | OAM Module | Dual-slot |

| Power Connectors | None | 1x 6-pin + 1x 8-pin |

| Suggested PSU | 1150 W | 600 W |

| Bus Interface | PCIe 5.0 x16 | PCIe 4.0 x16 |

| Display Outputs | No outputs | 6x mini-DisplayPort 1.4a |

| DirectX Support | N/A | 12 (12_1) |

| OpenGL Support | N/A | 4.6 |

| Vulkan Support | N/A | 1.3 |

| Release Date | 2023-12-05 | 2020-05-12 |

| Predecessor | Radeon Instinct | Radeon Pro Polaris |

| Successor | None | Radeon Pro Navi |

| Production Status | Not recorded | End-of-life |

| Launch MSRP | Not recorded | 1,899 USD |