AMD Instinct MI308X vs Intel Arc Pro B50 Comparison

FAQ

Q: What are the core architectural differences between the AMD Instinct MI308X and the Intel Arc Pro B50?

A: The AMD Instinct MI308X uses the CDNA 3.0 architecture on the Aqua Vanjaram chip, while the Intel Arc Pro B50 uses the Xe2-HPG architecture on the BMG-G21 chip. The AMD part is built for compute accelerators with 19,456 shading units and 1,216 TMUs, whereas the Intel part is a graphics-focused card with 2,048 shading units, 128 TMUs, 16 ROPs, and 16 ray tracing cores.

Q: How do the memory subsystems compare?

A: The AMD Instinct MI308X features 192 GB of HBM3 memory on an 8192-bit bus with 5.32 TB/s bandwidth. The Intel Arc Pro B50 has 16 GB of GDDR6 memory on a 128-bit bus with 224.0 GB/s bandwidth. The AMD card’s memory bandwidth is roughly 23.7 times higher than the Intel card’s.

Q: Which card has the higher boost clock?

A: The Intel Arc Pro B50 has a boost clock of 2600 MHz, while the AMD Instinct MI308X boosts to 2100 MHz. The Intel card also has a higher base clock at 1700 MHz versus 1000 MHz for the AMD card.

Q: What is the FP32 compute performance of each card?

A: The AMD Instinct MI308X delivers 81.72 TFLOPS of FP32 compute, while the Intel Arc Pro B50 delivers 10.65 TFLOPS. The AMD card is approximately 7.7 times faster in FP32 throughput.

Q: What is the average benchmark score for the Intel Arc Pro B50, and how does it rank?

A: The Intel Arc Pro B50 has an average benchmark score of 2660 and sits at the 17th percentile of all GPUs. Its nearest rival is the NVIDIA GeForce GT 1030 with an average score of 2662, a delta of -0.1%.

Q: Does the AMD Instinct MI308X have any benchmark scores in the database?

A: The database lists no benchmark scores for the AMD Instinct MI308X, and its average benchmark score is 0. It sits at the 50th percentile of all GPUs. All measured performance data in the database belongs to the Intel Arc Pro B50.

Architecture Differences

The AMD Instinct MI308X and Intel Arc Pro B50 represent two divergent design philosophies. The MI308X is built on the CDNA 3.0 architecture, which targets data center compute workloads. Its design uses 153,000 million transistors on a 1017 mm² die, produced on a 5 nm TSMC process. The transistor density reaches 150.4M per mm². The chip is named Aqua Vanjaram and belongs to the Instinct (MIx) generation.

The Intel Arc Pro B50 uses the Xe2-HPG architecture, the Battlemage generation for professional graphics. It packs 19,600 million transistors on a 272 mm² die, also on TSMC’s 5 nm process, but with a lower transistor density of 72.1M per mm². The chip is named BMG-G21. The die size difference is substantial: the AMD chip is about 3.7 times larger.

The compute resources differ dramatically. The MI308X has 19,456 shading units and 1,216 TMUs, but reports 0 ROPs and a pixel rate of 0 MPixel/s. It has no display outputs and no API support listed for DirectX, OpenGL, or Vulkan. This is a pure accelerator. The Arc Pro B50 has 2,048 shading units, 128 TMUs, 16 ROPs, and 16 ray tracing cores. It delivers a pixel rate of 41.60 GPixel/s and a texture rate of 332.8 GTexel/s, and it supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Memory architecture also separates the two. The MI308X uses HBM3 with a massive 8192-bit bus and 5.32 TB/s bandwidth. The Arc Pro B50 uses GDDR6 with a 128-bit bus and 224.0 GB/s bandwidth. The AMD card’s memory clock is 1300 MHz with 5.2 Gbps effective data rate, while the Intel card runs at 1750 MHz with 14 Gbps effective.

The power profiles are equally divergent. The MI308X has a TDP of 750 W and a suggested PSU of 1150 W. It uses an OAM Module slot width and has no power connectors listed. The Arc Pro B50 has a TDP of 70 W and a suggested PSU of 250 W. It is a dual-slot card measuring 167 mm in length, 69 mm in height, and 40 mm in width, with no external power connectors required.

The MI308X has no production status listed and was released on 2023-12-05. The Arc Pro B50 is marked as Active in production and was released on 2025-09-04, with a launch MSRP of 349 USD.

The Verdict

The data in the database draws a clear line between these two products. The AMD Instinct MI308X is a high-bandwidth compute accelerator with no display outputs, no graphics API support, and no measured benchmark scores. Its 192 GB of HBM3 memory and 5.32 TB/s bandwidth target memory-bound data center workloads. Its FP32 throughput of 81.72 TFLOPS is 7.7 times the Intel card’s 10.65 TFLOPS, and its texture rate of 2,553.6 GTexel/s is roughly 7.7 times higher as well.

The Intel Arc Pro B50 is a professional graphics card with display outputs, ray tracing cores, and full graphics API support. Its benchmark profile is modest: it ranks at the 17th percentile of all GPUs, and its nearest rival in the database is the NVIDIA GeForce GT 1030 with an average score of 2662, a delta of -0.1%. The Arc Pro B50’s average benchmark score of 2660 is effectively tied with that rival. Its Passmark G3D score of 12553 and Passmark GPU compute score of 6037 represent its strongest recorded results.

Users who need compute density, massive memory capacity, and extreme bandwidth should look to the MI308X. Users who need a small, low-power graphics card with modern API support and ray tracing should look to the Arc Pro B50. The two products do not compete in the same segment; the data shows they serve different purposes entirely.

Specification Differences

| Specification | AMD Instinct MI308X | Intel Arc Pro B50 |

|---|---|---|

| Architecture | CDNA 3.0 | Xe2-HPG |

| Chip | Aqua Vanjaram | BMG-G21 |

| Generation | Instinct (MIx) | Battlemage (Pro Series) |

| Transistors | 153,000 million | 19,600 million |

| Die Size | 1017 mm² | 272 mm² |

| Transistor Density | 150.4M / mm² | 72.1M / mm² |

| Base Clock | 1000 MHz | 1700 MHz |

| Boost Clock | 2100 MHz | 2600 MHz |

| Memory Clock | 1300 MHz 5.2 Gbps effective | 1750 MHz 14 Gbps effective |

| Memory Size | 192 GB | 16 GB |

| Memory Type | HBM3 | GDDR6 |

| Memory Bus Width | 8192 bit | 128 bit |

| Memory Bandwidth | 5.32 TB/s | 224.0 GB/s |

| Shading Units | 19456 | 2048 |

| TMUs | 1216 | 128 |

| ROPs | 0 | 16 |

| Ray Tracing Cores | Not listed | 16 |

| Pixel Rate | 0 MPixel/s | 41.60 GPixel/s |

| Texture Rate | 2,553.6 GTexel/s | 332.8 GTexel/s |

| FP32 | 81.72 TFLOPS | 10.65 TFLOPS |

| FP16 | 81.72 TFLOPS (1:1) | 21.30 TFLOPS (2:1) |

| TDP | 750 W | 70 W |

| Slot Width | OAM Module | Dual-slot |

| Suggested PSU | 1150 W | 250 W |

| Bus Interface | PCIe 5.0 x16 | PCIe 5.0 x8 |

| Display Outputs | No outputs | 4x mini-DisplayPort 2.1 |

| DirectX | N/A | 12 Ultimate (12_2) |

| OpenGL | N/A | 4.6 |

| Vulkan | N/A | 1.4 |

| Dimensions | Not listed | 167 mm 6.6 inches, 69 mm 2.7 inches, 40 mm 1.6 inches |

| Release Date | 2023-12-05 | 2025-09-04 |

| Launch MSRP | Not listed | 349 USD |

Head-to-Head Benchmarks

The database contains no shared benchmark entries for these two cards. The AMD Instinct MI308X has no recorded benchmark scores, so a direct comparison of measured results is impossible. The Intel Arc Pro B50, however, has eight recorded benchmark scores that allow for analysis.

The Arc Pro B50’s strongest recorded result is its Passmark G3D score of 12553. Its Passmark GPU compute score of 6037 indicates moderate compute throughput. In DirectX tests, the card scores 144 in Passmark DirectX 9, 100 in Passmark DirectX 11, 64 in Passmark DirectX 12, and 58 in Passmark DirectX 10. The 3DMark Steel Nomad DX12 score is 1604, and the Passmark G2D score is 717.

The Arc Pro B50’s average benchmark score of 2660 places it at the 17th percentile of all GPUs. Its nearest rivals in the database are the NVIDIA GeForce GT 1030 with an average score of 2662 and a delta of -0.1%, the NVIDIA Quadro K1100M with an average score of 2664 and a delta of -0.2%, the NVIDIA GeForce GT 440 with an average score of 2645 and a delta of 0.6%, and the NVIDIA GeForce RTX 5070 SUPER with an average score of 2690 and a delta of -1.1%. These deltas show the Arc Pro B50 sits within roughly a percentage point of all four rivals, with the GT 440 being the only one it outperforms.

For the AMD Instinct MI308X, the only performance indicators available are its theoretical specifications. Its FP32 rating of 81.72 TFLOPS is 7.7 times the Arc Pro B50’s 10.65 TFLOPS. Its FP16 rating of 81.72 TFLOPS at a 1:1 ratio contrasts with the Intel card’s 21.30 TFLOPS at a 2:1 ratio. The texture rate of 2,553.6 GTexel/s versus 332.8 GTexel/s shows the same proportional gap. The MI308X also holds a 50th percentile rank among all GPUs, versus the Arc Pro B50’s 17th percentile, though this percentile is based on the AMD card’s average benchmark score of 0.

The memory bandwidth gap is the most pronounced difference in the recorded data. The MI308X delivers 5.32 TB/s, which is approximately 23.7 times the Arc Pro B50’s 224.0 GB/s. This bandwidth advantage, combined with 192 GB of HBM3 memory, positions the MI308X for workloads that require moving very large datasets. The Arc Pro B50’s 16 GB of GDDR6 memory and 224.0 GB/s bandwidth suit conventional graphics workloads, and its 4x mini-DisplayPort 2.1 outputs confirm its role as a display-capable card.