AMD Instinct MI455X vs Intel Arc Graphics 112EU Mobile Comparison

AMD Instinct MI455X and Intel Arc Graphics 112EU Mobile occupy opposite ends of the GPU spectrum. The MI455X is a compute-oriented accelerator with a 2 nm process and 432 GB of HBM4 memory, while the Arc 112EU is an integrated graphics solution for mobile devices with shared system memory. Benchmark data shows no direct head-to-head comparisons, but the recorded specifications reveal stark differences in raw compute, memory architecture, and target workloads.

FAQ

Q: What are the core specifications of the AMD Instinct MI455X?

A: The MI455X uses the MI450 256CU chip based on CDNA 5.0 architecture, built on a 2 nm TSMC process. It contains 320,000 million transistors on a 2990 mm² die, with 32,768 shading units, 1,024 texture mapping units, and 0 ROPs. The GPU operates at a 1000 MHz base clock and 2400 MHz boost clock.

Q: What memory configuration does the Intel Arc Graphics 112EU Mobile use?

A: The Intel Arc Graphics 112EU Mobile uses system shared memory. Its memory size, type, bus width, and bandwidth are all listed as "System Shared" or "System Dependent". This means the integrated GPU relies on the host system's RAM rather than dedicated VRAM.

Q: How do the FP32 performance figures compare between the two GPUs?

A: The AMD Instinct MI455X delivers 157.3 TFLOPS of FP32 compute. The Intel Arc Graphics 112EU Mobile provides 3.942 TFLOPS of FP32 performance. This represents a 39.9x difference in single-precision floating-point throughput.

Q: What is the thermal design power for each GPU?

A: The AMD Instinct MI455X has a TDP of 2300 W with a suggested power supply of 2700 W. The Intel Arc Graphics 112EU Mobile has a TDP of 65 W and no suggested PSU listed. The MI455X consumes 35.4x more power than the integrated Intel solution.

Q: Which GPU supports more advanced graphics APIs?

A: The Intel Arc Graphics 112EU Mobile supports DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.4. The AMD Instinct MI455X lists all APIs as N/A, indicating it is not designed for traditional graphics rendering workloads.

Q: What are the release dates for these two products?

A: The AMD Instinct MI455X has a release date of 2026-07-22. The Intel Arc Graphics 112EU Mobile was released on 2023-12-13. The Intel product reached the market approximately 2.5 years earlier.

Q: What is the pixel fill rate for each GPU?

A: The AMD Instinct MI455X has a pixel rate of 0 MPixel/s due to having no ROPs. The Intel Arc Graphics 112EU Mobile has a pixel rate of 52.80 GPixel/s with 24 ROPs. This makes the Intel GPU the only one of the two capable of rasterization output.

The Verdict

The data indicates that these two products target completely different segments. The AMD Instinct MI455X is an accelerator designed for compute workloads, evidenced by its 0 ROP count, 0 MPixel/s pixel rate, and N/A graphics API support. Its 432 GB of HBM4 memory with 23.3 TB/s bandwidth positions it for large-scale data processing and AI training tasks. The Intel Arc Graphics 112EU Mobile serves as an integrated GPU for laptops, providing display output and conventional graphics rendering through supported APIs.

For compute-intensive applications such as large model training or scientific simulation, the MI455X shows overwhelming advantages. Its 157.3 TFLOPS FP32 performance, 2,457.6 GTexel/s texture rate, and 23.3 TB/s memory bandwidth dwarf the Intel part. The 24576-bit memory bus width versus the system-shared configuration further separates their capabilities.

For mobile computing, the Intel Arc Graphics 112EU Mobile delivers practical functionality. Its 52.80 GPixel/s pixel rate enables display output, its 65 W TDP suits thin-and-light designs, and its DirectX 12, OpenGL 4.6, and Vulkan 1.4 support covers standard graphics workloads. The MI455X with no display outputs and 2300 W TDP cannot function in this role.

The production status confirms this split. The Intel part is marked "Active", while the MI455X has no production status listed. The MI455X's predecessor is Radeon Instinct, indicating its lineage in the accelerator space. The Intel Arc Graphics 112EU Mobile's predecessor is HD Graphics-M, showing its integrated graphics heritage. Neither product has benchmark scores recorded, and both sit at the 50th percentile among all GPUs in the database.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark results between these two GPUs. Both products have empty benchmark arrays and an average benchmark score of 0. The winsA and winsB fields show zero wins for either side. Without recorded performance measurements, the comparison relies entirely on specification data.

The FP32 compute difference is the most striking metric. The MI455X delivers 157.3 TFLOPS compared to 3.942 TFLOPS for the Arc 112EU Mobile. This 39.9x gap reflects the MI455X's 32,768 shading units versus 896 for the Intel part. The texture rate follows a similar pattern: 2,457.6 GTexel/s for AMD versus 123.2 GTexel/s for Intel, a 19.9x difference.

Memory bandwidth separates the two by an even larger margin. The MI455X provides 23.3 TB/s through its 24576-bit HBM4 interface. The Arc 112EU Mobile's bandwidth is listed as "System Dependent", meaning it varies with the host laptop's memory configuration. The dedicated 432 GB capacity of the MI455X versus shared system memory for Intel represents a fundamental architectural difference.

Clock speeds show a narrower gap. The MI455X runs at 1000 MHz base and 2400 MHz boost. The Arc 112EU Mobile runs at 300 MHz base and 2200 MHz boost. The boost clocks are within 9.1% of each other, but the base clocks differ by 3.3x, indicating the AMD part maintains higher sustained frequencies.

The pixel rate reverses the trend. The MI455X outputs 0 MPixel/s while the Arc 112EU Mobile achieves 52.80 GPixel/s. The MI455X has no ROPs, making rasterization impossible. The Intel part includes 24 ROPs, enabling standard display output and 2D/3D rendering.

Power consumption data shows the MI455X's 2300 W TDP versus 65 W for the Arc 112EU Mobile. The suggested PSU for the AMD part is 2700 W, while the Intel integrated GPU needs no separate power supply recommendation. The MI455X uses an EAM Module slot width with no power connectors listed, suggesting direct board integration in servers. The Arc 112EU Mobile is an IGP with a Ring Bus interface.

Specification Differences

The process node differs significantly. The AMD Instinct MI455X uses TSMC's 2 nm process, while the Intel Arc Graphics 112EU Mobile uses Intel's 10 nm process. The MI455X contains 320,000 million transistors on a 2990 mm² die, achieving a transistor density of 107.0M per mm². The Intel part has no transistor count, die size, or density data recorded.

Memory capacity shows a 432 GB dedicated allocation for the MI455X versus system-shared memory for Intel. The memory type is HBM4 for AMD and system shared for Intel. The bus width measures 24576 bits for the MI455X, with no fixed bus width for the Arc 112EU Mobile. Memory clock runs at 1900 MHz with 7.6 Gbps effective data rate for the AMD part, while Intel's memory clock is system dependent.

Shader configuration differs by a factor of 36.6x. The MI455X packs 32,768 shading units, 1,024 TMUs, and 0 ROPs. The Arc 112EU Mobile has 896 shading units, 56 TMUs, and 24 ROPs. The MI455X's texture rate of 2,457.6 GTexel/s compares to 123.2 GTexel/s for Intel. The FP16 performance shows 157.3 TFLOPS (1:1 ratio) for AMD versus 7.885 TFLOPS (2:1 ratio) for Intel.

The bus interface differs completely. The MI455X uses PCIe 6.0 x16, a high-bandwidth external connection. The Arc 112EU Mobile uses Ring Bus, an internal interconnect for integrated graphics. Display outputs are listed as "No outputs" for AMD and "Portable Device Dependent" for Intel.

Power requirements create a clear separation. The MI455X draws 2300 W with a 2700 W suggested PSU. The Arc 112EU Mobile draws 65 W with no suggested PSU. The slot width shows EAM Module for AMD versus IGP for Intel. Power connectors appear as "None" for the MI455X, while the Intel part has no connector data listed.

Release timing shows the AMD product dated 2026-07-22 and the Intel product dated 2023-12-13. The production status for the MI455X is not listed, while the Arc 112EU Mobile shows "Active". The MI455X lists no launch MSRP, and the Arc 112EU Mobile also has no launch MSRP recorded.

Architecture Differences

The AMD Instinct MI455X uses CDNA 5.0 architecture, the latest generation of AMD's compute-focused design. This architecture generation is called "Instinct (MIx)", with the chip designated MI450 256CU. The 256 compute unit count aligns with the 32,768 shading units (128 per CU). The CDNA line prioritizes matrix operations and memory bandwidth over graphics features, consistent with the N/A API support.

The Intel Arc Graphics 112EU Mobile uses Xe-LPG architecture from the Meteor Lake chip. The generation is labeled "Arc Graphics-M (Meteor Lake)", indicating its role as an integrated GPU in Intel's mobile processors. The 112 execution units translate to 896 shading units (8 per EU). This architecture supports DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.4, making it suitable for consumer graphics.

The process technology reflects different foundry choices. TSMC produces the MI455X on a 2 nm node, while Intel fabricates the Arc 112EU Mobile on its 10 nm process. The MI455X's 320,000 million transistors on a 2990 mm² die produce a density of 107.0M transistors per mm². The Intel part has no transistor or die size data, but its integrated nature suggests a much smaller footprint.

Cache hierarchy details are absent from the recorded data for both products. Neither GPU lists RT cores or tensor cores, though the MI455X's CDNA 5.0 architecture likely handles similar functions through its shader array. The FP16 ratio differs: the MI455X achieves 1:1 FP16 to FP32 performance, while the Arc 112EU Mobile achieves 2:1, meaning it processes FP16 at twice the rate of FP32.

The memory architecture represents the most fundamental divergence. The MI455X uses HBM4 with a 24576-bit bus, delivering 23.3 TB/s. This configuration suits massive parallel data access patterns. The Arc 112EU Mobile uses system shared memory with bandwidth dependent on the host platform, a design that reduces cost and power but limits memory throughput.

The MI455X includes no display outputs, confirming its role as a compute accelerator. The Arc 112EU Mobile provides display outputs dependent on the portable device, enabling laptop screens and external monitors. The API support reinforces this split: the MI455X lists N/A for DirectX, OpenGL, and Vulkan, while the Arc 112EU Mobile supports all three.

The power delivery approach differs substantially. The MI455X draws 2300 W, requiring a 2700 W power supply and using an EAM Module form factor. The Arc 112EU Mobile draws 65 W, operates as an IGP, and connects via Ring Bus. The MI455X's predecessor is Radeon Instinct, continuing AMD's accelerator lineage. The Arc 112EU Mobile's predecessor is HD Graphics-M, evolving Intel's integrated graphics line.