AMD Instinct MI455X vs Intel Arc A570M Comparison

Where Each One Wins

The AMD Instinct MI455X and Intel Arc A570M occupy completely different corners of the hardware landscape, and the benchmark data reflects that split. The Intel Arc A570M has recorded benchmark results, including a Geekbench OpenCL score of 58,239, placing it in the 88th percentile of all GPUs in the database. The AMD Instinct MI455X has no recorded benchmark scores, sits at the 50th percentile, and carries an average benchmark score of zero. This immediately signals that the MI455X is not positioned for the same workloads as the Arc A570M.

The Intel Arc A570M delivers a measurable OpenCL result, which indicates it can execute general-purpose compute tasks through that API. Its nearest rivals in the database include the AMD Radeon RX 6950 XT at an average score of 58,392, which is 0.3% lower than the Arc A570M, and the AMD Radeon RX 5600 OEM at 58,085, which is 0.3% higher. The NVIDIA P102-100 scores 58,528, 0.5% lower, and the AMD Radeon PRO V710 scores 58,657, 0.7% lower. These tight deltas show the Arc A570M sits in a competitive cluster for this specific test, essentially trading blows within a single percentage point of its closest peers.

The AMD Instinct MI455X wins by virtue of its raw architectural ceiling. It has no benchmarks in the database, so its wins are structural rather than measured. The data shows the MI455X is built for massive parallel throughput: 32,768 shading units, 1,024 texture mapping units, and a texture rate of 2,457.6 GTexel/s. The Arc A570M has 2,048 shading units, 128 TMUs, and a texture rate of 166.4 GTexel/s. The MI455X also delivers 157.3 TFLOPS of FP32 performance, while the Arc A570M delivers 5.325 TFLOPS. The MI455X is a data-center accelerator with a 2,300 W TDP, while the Arc A570M is a 75 W mobile-class part.

For use cases, the Arc A570M is the only one of the two with an actual measured score, so it wins the empirical benchmark category. It also supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, making it viable for graphics-oriented workloads. The MI455X lists no APIs, no display outputs, and no pixel rate, which confirms it is not intended for rendering or consumer graphics. The MI455X wins the capacity and throughput categories: 432 GB of memory versus 8 GB, 23.3 TB/s of bandwidth versus 224.0 GB/s, and a 24,576-bit memory bus versus a 128-bit bus.

Architecture Differences

The fundamental architecture split is stark. The AMD Instinct MI455X uses the CDNA 5.0 architecture and is built on the MI450 256CU chip, while the Intel Arc A570M uses the Xe-HPG architecture on the DG2-256 chip. CDNA is AMD's compute-optimized line, and the MI455X belongs to the Instinct (MIx) generation. Xe-HPG is Intel's gaming and graphics architecture, and the Arc A570M belongs to the Alchemist generation, specifically the Arc 5 Mobile tier.

The process nodes differ significantly. The MI455X is fabricated on a 2 nm process at TSMC with 320,000 million transistors on a 2,990 mm² die, yielding a transistor density of 107.0M per mm². The Arc A570M is on a 6 nm process, also at TSMC, with 11,500 million transistors on a 269 mm² die, for a density of 42.8M per mm². The MI455X has roughly 27.8 times more transistors on a die that is about 11.1 times larger, which explains its immense compute resources.

Memory architecture is equally divergent. The MI455X uses HBM4 memory with 432 GB capacity, a 24,576-bit bus, and 23.3 TB/s of bandwidth. The Arc A570M uses GDDR6 with 8 GB capacity, a 128-bit bus, and 224.0 GB/s of bandwidth. The MI455X memory clock is listed at 1900 MHz with 7.6 Gbps effective, while the Arc A570M memory runs at 1750 MHz with 14 Gbps effective. The MI455X has a 102.9 times bandwidth advantage.

The clock speeds tell a different story. The MI455X has a base clock of 1000 MHz and a boost of 2400 MHz. The Arc A570M has a base of 900 MHz and a boost of 1300 MHz. The MI455X boosts to nearly double the Arc's boost frequency, but the Arc's lower clocks are typical for a 75 W part. The MI455X has 32,768 shading units versus 2,048, and 1,024 TMUs versus 128. The Arc A570M has 64 ROPs and 16 ray tracing cores; the MI455X lists zero ROPs and no ray tracing cores. The MI455X FP16 throughput is 157.3 TFLOPS at a 1:1 ratio with FP32, while the Arc A570M FP16 is 10.65 TFLOPS at a 2:1 ratio.

The MI455X uses a PCIe 6.0 x16 interface, while the Arc A570M uses PCIe 4.0 x8. The MI455X is an EAM Module with no power connectors and no display outputs, and it has a suggested PSU of 2,700 W. The Arc A570M is an IGP with portable device dependent display outputs and no suggested PSU listed. The MI455X release date is 2026-07-22, while the Arc A570M was released on 2023-07-31 and is marked as Active in production status.

Head-to-Head Benchmarks

There are no direct head-to-head benchmark entries in the database for these two products, so the comparison relies on the recorded data for the Arc A570M and the architectural capabilities of the MI455X. The only measured benchmark available is the Arc A570M's Geekbench OpenCL score of 58,239. Its nearest rivals bracket that score: the AMD Radeon RX 6950 XT at 58,392 (0.3% lower), the AMD Radeon RX 5600 OEM at 58,085 (0.3% higher), the NVIDIA P102-100 at 58,528 (0.5% lower), and the AMD Radeon PRO V710 at 58,657 (0.7% lower). The Arc A570M sits nearly dead center in this group, implying its OpenCL performance is on par with those desktop and workstation parts despite its mobile form factor.

The MI455X has no score to compare, but its FP32 figure of 157.3 TFLOPS is 29.5 times the Arc A570M's 5.325 TFLOPS. Texture rate follows a similar pattern: 2,457.6 GTexel/s versus 166.4 GTexel/s, a 14.8 times difference. Memory bandwidth is the most extreme gap: 23.3 TB/s versus 224.0 GB/s, a 104.0 times difference. The MI455X also has 432 GB of memory versus 8 GB, a 54 times capacity advantage. These are not competitive numbers; they are orders of magnitude apart.

The Arc A570M's pixel rate is 83.20 GPixel/s, while the MI455X lists 0 MPixel/s. That is a category where the Arc A570M is the only contender, reinforcing that the MI455X does not perform rasterization work. The Arc A570M also supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the MI455X lists N/A for all three APIs.

The data implies the Arc A570M is a functional, measured GPU that competes with specific desktop cards within a 1% margin in OpenCL. The MI455X is a theoretical behemoth whose specifications dwarf the Arc A570M in every compute-oriented metric, but it has no empirical results to validate those specs in practice. The database shows zero wins for either product in head-to-head testing, which is consistent with the absence of paired benchmark records.

Specification Differences

The two products differ in nearly every specification field. The MI455X uses a 2 nm process; the Arc A570M uses 6 nm. Transistor counts are 320,000 million versus 11,500 million. Die size is 2,990 mm² versus 269 mm². Transistor density is 107.0M per mm² versus 42.8M per mm². Base clocks are 1000 MHz versus 900 MHz, and boost clocks are 2400 MHz versus 1300 MHz. Memory size is 432 GB versus 8 GB, type is HBM4 versus GDDR6, bus width is 24,576 bit versus 128 bit, and bandwidth is 23.3 TB/s versus 224.0 GB/s.

Shading units are 32,768 versus 2,048. TMUs are 1,024 versus 128. ROPs are 0 versus 64. Ray tracing cores are not listed for the MI455X, while the Arc A570M has 16. Pixel rate is 0 MPixel/s versus 83.20 GPixel/s. Texture rate is 2,457.6 GTexel/s versus 166.4 GTexel/s. FP32 is 157.3 TFLOPS versus 5.325 TFLOPS. FP16 is 157.3 TFLOPS (1:1) versus 10.65 TFLOPS (2:1). TDP is 2,300 W versus 75 W. Slot width is EAM Module versus IGP. Power connectors are none versus not listed. Suggested PSU is 2,700 W versus not listed. Bus interface is PCIe 6.0 x16 versus PCIe 4.0 x8. Display outputs are none versus portable device dependent. APIs are N/A versus DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Release dates are 2026-07-22 versus 2023-07-31. Production status is not listed for the MI455X, while the Arc A570M is Active.

FAQ

Q: Which product has a higher recorded benchmark score?

A: The Intel Arc A570M has a Geekbench OpenCL score of 58,239. The AMD Instinct MI455X has no recorded benchmark scores in the database, with an average benchmark score of zero.

Q: How does the Arc A570M compare to its nearest rivals in OpenCL performance?

A: The Arc A570M scores 58,239, which is 0.3% higher than the AMD Radeon RX 6950 XT at 58,392, 0.3% lower than the AMD Radeon RX 5600 OEM at 58,085, 0.5% higher than the NVIDIA P102-100 at 58,528, and 0.7% higher than the AMD Radeon PRO V710 at 58,657.

Q: What is the memory capacity difference?

A: The AMD Instinct MI455X has 432 GB of HBM4 memory, while the Intel Arc A570M has 8 GB of GDDR6 memory. The MI455X also has a 24,576-bit memory bus versus 128-bit, and 23.3 TB/s bandwidth versus 224.0 GB/s.

Q: Does the AMD Instinct MI455X support graphics APIs?

A: No. The MI455X lists DirectX, OpenGL, and Vulkan as N/A, and has no display outputs. The Intel Arc A570M supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What are the power requirements for each product?

A: The AMD Instinct MI455X has a TDP of 2,300 W and a suggested PSU of 2,700 W. The Intel Arc A570M has a TDP of 75 W and no suggested PSU listed.

Q: When was each product released?

A: The AMD Instinct MI455X release date is 2026-07-22. The Intel Arc A570M release date is 2023-07-31, and its production status is Active.

The Verdict

The data points to two distinct audiences. The Intel Arc A570M is the only one of the pair with empirical validation, and its 58,239 OpenCL score places it in the 88th percentile of all GPUs, trading within a single percentage point of the RX 6950 XT, RX 5600 OEM, P102-100, and PRO V710. Its support for DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, plus its 64 ROPs and 16 ray tracing cores, make it a viable graphics and compute solution for portable devices. Its 75 W TDP and 8 GB GDDR6 memory fit a mobile or integrated context.

The AMD Instinct MI455X is a different category entirely. Its 32,768 shading units, 157.3 TFLOPS FP32, 432 GB HBM4 memory, and 23.3 TB/s bandwidth position it as a data-center compute accelerator. The absence of any benchmark scores, display outputs, or graphics API support confirms it is not meant for interactive graphics. Its 2,300 W TDP and 2,700 W suggested PSU indicate a rack-mounted or module-based deployment, and its PCIe 6.0 x16 interface and EAM Module form factor align with server infrastructure.

Those seeking a measured, graphics-capable GPU with a recorded benchmark should select the Intel Arc A570M. Those needing extreme parallel compute capacity, massive memory, and bandwidth for data-center workloads should select the AMD Instinct MI455X, accepting that its specifications are not yet backed by benchmark results in the database. The choice depends on whether the workload requires a proven, API-complete GPU or a specification-driven compute accelerator with unmatched raw resources.