AMD Instinct MI355X vs Intel Arc A580 Comparison

FAQ

Q: What are the core specifications of the AMD Instinct MI355X and Intel Arc A580?

A: The AMD Instinct MI355X uses the MI350 256CU chip, is built on a 3 nm process at TSMC, and has 185,000 million transistors on a 2380 mm² die. The Intel Arc A580 uses the DG2-512 chip, is built on a 6 nm process at TSMC, and has 21,700 million transistors on a 406 mm² die.

Q: How do the memory subsystems compare between these two cards?

A: The AMD Instinct MI355X offers 288 GB of HBM3e memory on an 8192-bit bus with 8.19 TB/s bandwidth. The Intel Arc A580 has 8 GB of GDDR6 memory on a 256-bit bus with 512.0 GB/s bandwidth.

Q: What are the compute capabilities of each card?

A: The AMD Instinct MI355X delivers 78.64 TFLOPS FP32 and 78.64 TFLOPS FP16 (1:1). The Intel Arc A580 delivers 12.29 TFLOPS FP32 and 24.58 TFLOPS FP16 (2:1).

Q: What is the power draw difference?

A: The AMD Instinct MI355X has a TDP of 1400 W with a suggested PSU of 1800 W. The Intel Arc A580 has a TDP of 175 W with a suggested PSU of 450 W.

Q: What display outputs does each card provide?

A: The AMD Instinct MI355X has no display outputs. The Intel Arc A580 provides 1x HDMI 2.1 and 3x DisplayPort 2.0.

Q: What is the release date and percentile ranking for each?

A: The AMD Instinct MI355X was released on 2025-06-11 and sits in the 50th percentile of all GPUs. The Intel Arc A580 was released on 2023-10-09 and sits in the 87th percentile of all GPUs.

The Verdict

The benchmark database places these two accelerators in entirely different segments. The Intel Arc A580 holds an 87th percentile ranking among all GPUs, while the AMD Instinct MI355X sits at the 50th percentile. This difference stems from their purpose: the Arc A580 is a graphics-oriented card with 3,072 shading units, 192 TMUs, 96 ROPs, and 24 ray tracing cores, while the MI355X is a compute module with 16,384 shading units, 1,024 TMUs, zero ROPs, and no ray tracing cores.

The data indicates the Intel Arc A580 is the only one of the two with an active production status and a defined successor (Battlemage). It also carries a full API stack: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The AMD Instinct MI355X lists N/A for DirectX, OpenGL, and Vulkan, which aligns with its role as an accelerator without display outputs.

For users who need rasterization, ray tracing, and display connectivity, the Arc A580 is the functional choice. Its 192.0 GPixel/s pixel rate and 384.0 GTexel/s texture rate confirm it processes graphics workloads. The MI355X records 0 MPixel/s and 2,457.6 GTexel/s, indicating it prioritizes texture and compute throughput over pixel output.

The MI355X targets massive parallel compute. Its 78.64 TFLOPS FP32 is 6.4 times the Arc A580's 12.29 TFLOPS, and its 8.19 TB/s memory bandwidth is 16 times higher. The 288 GB HBM3e frame buffer dwarfs the Arc A580's 8 GB GDDR6. For machine learning, scientific simulation, or large matrix operations, the MI355X delivers the raw resources.

The Arc A580's nearest rivals in the database include the AMD Radeon RX 5600 OEM (0.6% lower average score), the AMD Radeon RX 9070 GRE (0.7% higher), the Intel Arc A570M (0.8% lower), and the AMD Radeon RX 6950 XT (1.1% lower). These close margins show the Arc A580 sits in a competitive mid-range band. The MI355X has no nearest rivals recorded, reflecting its unique positioning with no direct comparisons in the database.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries between these two cards, so direct comparative scores are unavailable. Instead, the recorded benchmark suite for the Intel Arc A580 provides a reference point: 3DMark Steel Nomad DX12 scored 2,229, Geekbench OpenCL scored 91,657, and Geekbench Vulkan scored 79,381. The average benchmark score across these tests is 57,756.

The AMD Instinct MI355X has no benchmark entries in the database and an average benchmark score of 0. This absence of recorded results does not indicate a lack of capability; it reflects the database's coverage, which currently includes no standardized tests for this compute module.

The compute gap is stark when examining raw throughput. The MI355X's 78.64 TFLOPS FP32 is 6.4 times the Arc A580's 12.29 TFLOPS. In FP16, the MI355X again outputs 78.64 TFLOPS, while the Arc A580 reaches 24.58 TFLOPS. The texture rate favors the MI355X at 2,457.6 GTexel/s versus 384.0 GTexel/s, a 6.4 times advantage.

Memory bandwidth tells a similar story. The MI355X's 8.19 TB/s is 16 times the Arc A580's 512.0 GB/s. The MI355X also has an 8192-bit memory bus compared to 256-bit, and 288 GB capacity versus 8 GB. These numbers position the MI355X as a high-bandwidth compute device, while the Arc A580's 512.0 GB/s is typical for a consumer graphics card.

The Arc A580 counters in pixel throughput. Its 192.0 GPixel/s pixel rate is functionally infinite compared to the MI355X's 0 MPixel/s, confirming the MI355X cannot output rendered frames. The Arc A580's 24 ray tracing cores give it hardware acceleration for ray-traced workloads, a feature the MI355X lacks entirely.

Specification Differences

The two cards differ in nearly every measured category. The AMD Instinct MI355X uses a 3 nm TSMC process with 185,000 million transistors on a 2380 mm² die, achieving a transistor density of 77.7M per mm². The Intel Arc A580 uses a 6 nm TSMC process with 21,700 million transistors on a 406 mm² die, achieving 53.4M per mm².

Clock speeds show the Arc A580 runs higher: 1700 MHz base and 2000 MHz boost versus the MI355X's 1000 MHz base and 2400 MHz boost. The MI355X boosts higher but idles lower. Memory clocks are similar at 2000 MHz, but effective data rates differ: 8 Gbps for the MI355X's HBM3e and 16 Gbps for the Arc A580's GDDR6.

Shading units heavily favor the MI355X: 16,384 versus 3,072. TMUs follow at 1,024 versus 192. The Arc A580 has 96 ROPs; the MI355X has zero. The Arc A580 includes 24 ray tracing cores; the MI355X has none listed.

Power requirements are dramatically different. The MI355X draws 1400 W TDP and requires an 1800 W suggested PSU, while the Arc A580 draws 175 W TDP and requires a 450 W suggested PSU. The MI355X uses an OAM Module slot width with no power connectors, while the Arc A580 is a Dual-slot card with 2x 8-pin connectors.

Bus interfaces differ: the MI355X uses PCIe 5.0 x16, the Arc A580 uses PCIe 4.0 x16. Display outputs: the MI355X has none, the Arc A580 has 1x HDMI 2.1 and 3x DisplayPort 2.0. The MI355X measures 102 mm in length and 165 mm in width; the Arc A580 has no recorded dimensions.

Architecture Differences

The AMD Instinct MI355X is built on CDNA 4.0 architecture, part of the Instinct (MIx) generation. The Intel Arc A580 uses Xe-HPG architecture, part of the Alchemist (Arc 5) generation. These are fundamentally different designs: CDNA 4.0 targets compute acceleration, while Xe-HPG targets graphics rendering.

The MI355X's predecessor is Radeon Instinct, and it has no successor recorded. The Arc A580's predecessor is Xe Graphics, with Battlemage listed as its successor. The MI355X has a 2025-06-11 release date, while the Arc A580 launched on 2023-10-09.

Process technology differs: 3 nm for the MI355X versus 6 nm for the Arc A580, both from TSMC. The MI355X's 185,000 million transistors represent an 8.5 times higher count than the Arc A580's 21,700 million. Die size follows at 2380 mm² versus 406 mm², a 5.9 times difference.

Memory architecture is entirely different. The MI355X uses HBM3e with a 288 GB capacity and 8192-bit bus, while the Arc A580 uses GDDR6 with 8 GB and 256-bit bus. These are different memory technologies optimized for different workloads: HBM3e for bandwidth density in compute, GDDR6 for cost-effective graphics memory.

Compute feature sets diverge. The MI355X's FP16 runs at 1:1 ratio with FP32, indicating dedicated FP16 throughput. The Arc A580's FP16 runs at 2:1, meaning half-rate FP16 relative to FP32. The MI355X's 78.64 TFLOPS FP16 equals its FP32 figure, while the Arc A580's 24.58 TFLOPS FP16 doubles its FP32 output.

API support separates the cards completely. The Arc A580 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, enabling modern game and graphics application compatibility. The MI355X lists N/A for all three APIs, confirming it does not expose graphics APIs. Its interface is PCIe 5.0 x16, twice the bandwidth of the Arc A580's PCIe 4.0 x16. The MI355X's power connectors are listed as none because it uses an OAM Module form factor, while the Arc A580 uses standard 2x 8-pin connectors.