AMD Radeon Instinct MI300 vs Intel Arc Graphics 2 Xe Mobile Comparison

FAQ

Q: What are the core architectural identities of these two processors?

A: The AMD Radeon Instinct MI300 uses the CDNA 3.0 architecture on the Aqua Vanjaram chip, built on a 5 nm process at TSMC. The Intel Arc Graphics 2 Xe Mobile uses the Xe3-LPG architecture on the Wildcat Lake chip, built on a 3 nm process at Intel. They target entirely different market segments: the MI300 is a data center accelerator, while the Arc Graphics 2 Xe Mobile is an integrated graphics processor for mobile devices.

Q: How do the memory subsystems compare?

A: The AMD Radeon Instinct MI300 has 128 GB of HBM3 memory on a 8192-bit bus, delivering 6.55 TB/s of bandwidth. The Intel Arc Graphics 2 Xe Mobile uses System Shared memory, with a System Shared bus width and System Dependent bandwidth. The MI300's dedicated memory capacity and bandwidth are orders of magnitude larger than what a shared-memory integrated solution can provide.

Q: What are the FP32 compute capabilities of each?

A: The AMD Radeon Instinct MI300 delivers 47.87 TFLOPS of FP32 performance. The Intel Arc Graphics 2 Xe Mobile delivers 1,280.0 GFLOPS, which converts to 1.28 TFLOPS. The MI300 is roughly 37 times faster in FP32 throughput based on these recorded figures.

Q: What do the power requirements indicate?

A: The AMD Radeon Instinct MI300 has a TDP of 600 W and requires a 1000 W suggested PSU with 2x 8-pin power connectors. The Intel Arc Graphics 2 Xe Mobile has a TDP of 25 W and uses no external power connectors, as it is an IGP. The power envelope difference of 575 W reflects the fundamental design split between a discrete accelerator and a mobile integrated solution.

Q: What display outputs does each provide?

A: The AMD Radeon Instinct MI300 has no display outputs, confirming its role as a compute-only accelerator. The Intel Arc Graphics 2 Xe Mobile provides display outputs that are Portable Device Dependent, meaning the output configuration depends on the host mobile device.

Q: What API support does each offer?

A: The AMD Radeon Instinct MI300 has no recorded DirectX, OpenGL, or Vulkan support in the database. The Intel Arc Graphics 2 Xe Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, making it suitable for consumer graphics workloads where the MI300 has no applicable data.

Architecture Differences

The AMD Radeon Instinct MI300 and Intel Arc Graphics 2 Xe Mobile represent two extreme poles of GPU design philosophy. The MI300 is built on TSMC's 5 nm process and integrates 153,000 million transistors on a 1017 mm² die, yielding a transistor density of 150.4M per mm². The Intel part uses Intel's 3 nm process, though its transistor count and die size are recorded as unknown in the database.

The shading unit counts differ dramatically. The MI300 carries 14,080 shading units, 880 texture mapping units, and 0 ROPs. Its pixel rate is recorded as 0 MPixel/s, and its texture rate reaches 1,496.0 GTexel/s. The Arc Graphics 2 Xe Mobile has 256 shading units, 16 TMUs, and 8 ROPs. Its pixel rate is 20.00 GPixel/s, and its texture rate is 40.00 GTexel/s.

Ray tracing hardware exists only on the Intel side, which has 2 RT cores. The MI300 has no RT cores recorded. Tensor cores are absent from both listings, though the MI300's CDNA 3.0 architecture is designed for compute workloads. The FP16 figures illustrate the different precision strategies: the MI300 delivers 383.0 TFLOPS at an 8:1 ratio, while the Intel part delivers 2.560 TFLOPS at a 2:1 ratio.

Clock behavior also diverges. The MI300 has a base clock of 1000 MHz and a boost of 1700 MHz, with memory running at 1600 MHz or 6.4 Gbps effective. The Intel part has a 300 MHz base and 2500 MHz boost. The MI300 uses PCIe 5.0 x16 as its bus interface, while the Arc Graphics 2 Xe Mobile is an IGP with no external bus.

The production status differs: the MI300 has no recorded status, while the Intel part is marked Active. Release dates are separated by over three years: the MI300 launched on 2023-01-03, and the Intel part on 2026-04-15. The MI300's predecessor is the FirePro Data Center, while the Arc Graphics 2 Xe Mobile's predecessor is HD Graphics-M.

Head-to-Head Benchmarks

The database contains no recorded benchmark scores for either processor. Both have an avgBenchmarkScore of 0, and both sit at the 50th percentile versus all GPUs. The head-to-head benchmark array is empty, and the wins counters show 0 for both sides. This absence of measured data means direct performance comparisons must rely entirely on the architectural specifications recorded in the database.

The most decisive numerical advantage belongs to the AMD Radeon Instinct MI300 in raw compute throughput. Its FP32 figure of 47.87 TFLOPS versus the Intel part's 1,280.0 GFLOPS gives the MI300 a 37.4 times advantage in single-precision floating-point work. The FP16 comparison shows a wider gap: 383.0 TFLOPS versus 2.560 TFLOPS, a 149.6 times difference. These margins reflect the MI300's data center positioning as a compute accelerator built for massive parallel workloads.

Memory bandwidth is another area of complete separation. The MI300's 6.55 TB/s from HBM3 on an 8192-bit bus dwarfs the Intel part's System Dependent bandwidth, which cannot be quantified in absolute terms. The 128 GB of dedicated HBM3 memory versus System Shared memory means the MI300 can hold far larger datasets locally, avoiding the latency and capacity constraints of shared system memory.

The Intel Arc Graphics 2 Xe Mobile holds advantages in several specific areas. Its boost clock of 2500 MHz exceeds the MI300's 1700 MHz boost by 800 MHz. Its pixel rate of 20.00 GPixel/s is meaningful where the MI300 records 0 MPixel/s, indicating the Intel part can actually drive displays. The Intel part also has 2 RT cores, enabling ray-traced workloads that the MI300 cannot accelerate. Its API support includes DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, while the MI300 has no recorded API support in any of those categories.

Power efficiency as measured by performance per watt cannot be computed precisely without benchmark scores, but the raw TDP figures tell a clear story. The MI300 consumes 600 W to produce its compute numbers, while the Intel part produces its 1,280.0 GFLOPS within a 25 W envelope. The MI300's FP32 per watt is approximately 79.78 GFLOPS/W, while the Intel part achieves approximately 51.2 GFLOPS/W based on the recorded TDP values. The MI300 is more compute-efficient per watt despite its much higher absolute power draw.

The process node comparison shows Intel at 3 nm versus TSMC at 5 nm for AMD. The Intel process is smaller, which typically enables higher density and lower power at equivalent complexity, though the MI300's transistor count of 153,000 million far exceeds anything the Intel part could integrate given its mobile integrated form factor.

The Verdict

The recorded data indicates two processors with no overlapping use cases. The AMD Radeon Instinct MI300 is a data center compute accelerator with 128 GB of HBM3, 6.55 TB/s of memory bandwidth, 47.87 TFLOPS of FP32, and 383.0 TFLOPS of FP16. It has no display outputs, no API support for consumer graphics, and a 600 W TDP. The Intel Arc Graphics 2 Xe Mobile is a mobile integrated graphics processor with 256 shading units, 2 RT cores, DirectX 12 Ultimate support, and a 25 W TDP.

For compute-intensive data center workloads such as large-scale AI training or high-performance computing simulations, the MI300's massive memory capacity and bandwidth, combined with its FP16 throughput of 383.0 TFLOPS, make it the only viable choice among these two. The Intel part cannot approach this performance class, and its System Shared memory would bottleneck any large dataset.

For mobile graphics, gaming, and consumer display workloads, the Intel Arc Graphics 2 Xe Mobile is the functional option. It has display outputs, ray tracing cores, a 2500 MHz boost clock, and full support for modern graphics APIs. The MI300 has no display outputs and no consumer API support, rendering it unsuitable for any interactive graphics task.

The FP32 efficiency analysis favors the MI300 in absolute throughput but the Intel part in total power draw. The MI300's 79.78 GFLOPS/W versus the Intel part's 51.2 GFLOPS/W shows the MI300 is more efficient per watt, but the 600 W TDP limits deployment to servers with adequate power delivery, including the 1000 W suggested PSU. The Intel part's 25 W envelope allows integration into portable devices with no external power connectors.

The production status shows the Intel part as Active, while the MI300 has no recorded status. The Intel part launched later, on 2026-04-15, versus 2023-01-03 for the MI300. Neither processor has recorded benchmark scores, so the percentile ranking of 50 for both reflects the absence of measured performance data rather than any comparative evaluation.

Specification Differences

| Specification | AMD Radeon Instinct MI300 | Intel Arc Graphics 2 Xe Mobile |

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

| Architecture | CDNA 3.0 | Xe3-LPG |

| Process Node | 5 nm (TSMC) | 3 nm (Intel) |

| Transistors | 153,000 million | unknown |

| Die Size | 1017 mm² | unknown |

| Base Clock | 1000 MHz | 300 MHz |

| Boost Clock | 1700 MHz | 2500 MHz |

| Memory Size | 128 GB HBM3 | System Shared |

| Memory Bus Width | 8192 bit | System Shared |

| Memory Bandwidth | 6.55 TB/s | System Dependent |

| Shading Units | 14080 | 256 |

| TMUs | 880 | 16 |

| ROPs | 0 | 8 |

| RT Cores | null | 2 |

| Pixel Rate | 0 MPixel/s | 20.00 GPixel/s |

| Texture Rate | 1,496.0 GTexel/s | 40.00 GTexel/s |

| FP32 | 47.87 TFLOPS | 1,280.0 GFLOPS |

| FP16 | 383.0 TFLOPS (8:1) | 2.560 TFLOPS (2:1) |

| TDP | 600 W | 25 W |

| Power Connectors | 2x 8-pin | None |

| Suggested PSU | 1000 W | null |

| Bus Interface | PCIe 5.0 x16 | IGP |

| Display Outputs | No outputs | Portable Device Dependent |

| DirectX | null | 12 Ultimate (12_2) |

| OpenGL | null | 4.6 |

| Vulkan | null | 1.4 |

| Dimensions | 267 mm (10.5 in) length, 111 mm (4.4 in) height | null |

| Production Status | null | Active |

| Release Date | 2023-01-03 | 2026-04-15 |

| Predecessor | FirePro Data Center | HD Graphics-M |