AMD Instinct MI455X vs Intel Arc A530M Comparison

The Verdict

The database contains no overlapping benchmark scores for the AMD Instinct MI455X and the Intel Arc A530M. The MI455X has no recorded benchmark entries, an average score of zero, and a percentile ranking of 50. The Arc A530M has two recorded tests (Geekbench OpenCL at 49735 and Geekbench Vulkan at 43492), an average score of 46614, and an 85th percentile ranking. The data therefore cannot support a direct performance comparison. Any claim of superiority for either part is unsupported by the recorded measurements.

The Arc A530M sits in a competitive mid-range mobile segment. Its nearest rivals in the database include the AMD Radeon RX 5600M at 46601 (0% delta), the AMD Radeon RX 6550M at 46702 (-0.2% delta), the NVIDIA RTX A2000 at 46043 (1.2% delta), and the NVIDIA RTX 5880 Ada Generation at 45972 (1.4% delta). These margins are narrow, all within 1.6 percentage points. The MI455X has no nearest rivals listed, leaving its competitive position undefined.

For the Arc A530M, the data indicates a part that lands within a tight cluster of comparable mobile and workstation GPUs. It edges out the RX 6550M by 0.2%, trails the RX 5600M by a negligible margin, and leads the RTX A2000 and RTX 5880 Ada Generation by 1.2% and 1.4% respectively. The MI455X cannot be assessed in this manner. The verdict from the data is straightforward: the MI455X is unmeasurable in this database, while the Arc A530M is a known quantity with a defined competitive position.

Where Each One Wins

The Arc A530M wins in every category where data exists. It has recorded benchmark scores, a nonzero average score, and a percentile ranking. The MI455X has no wins, no benchmarks, and no recorded performance data. The Arc A530M also wins on API support, offering DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The MI455X lists N/A for all three APIs. Display outputs follow the same pattern: the Arc A530M has "Portable Device Dependent" outputs, while the MI455X has no outputs at all.

The MI455X wins on raw hardware scale. It carries 32768 shading units versus 1536 for the Arc A530M. Its texture rate reaches 2,457.6 GTexel/s versus 124.8 GTexel/s. Its FP32 compute is 157.3 TFLOPS versus 3.994 TFLOPS. Its FP16 is 157.3 TFLOPS (1:1) versus 7.987 TFLOPS (2:1). Its memory capacity is 432 GB of HBM4 versus 8 GB of GDDR6. Its bus width is 24576 bit versus 128 bit. Its bandwidth is 23.3 TB/s versus 224.0 GB/s. These are massive specification advantages, but they do not translate into recorded benchmark wins because no MI455X benchmark data exists.

The practical split is clear. The Arc A530M is the only part with measurable performance, making it the only choice for any workload assessment based on this database. The MI455X presents a large-scale compute specification with no supporting measurement data. For pixel rate, the MI455X lists 0 MPixel/s while the Arc A530M lists 62.40 GPixel/s, an advantage for the Intel part in any rasterization workload, though the MI455X likely targets compute rather than graphics output given its lack of display outputs.

Architecture Differences

The two parts come from different manufacturers, different architectures, and different design philosophies. The MI455X uses AMD's CDNA 5.0 architecture on a chip called "MI450 256CU," built on a 2 nm process at TSMC. The Arc A530M uses Intel's Xe-HPG architecture on a chip called "DG2-256," built on a 6 nm process also at TSMC. The process node gap is substantial: 2 nm versus 6 nm.

Transistor counts differ by an order of magnitude. The MI455X integrates 320,000 million transistors on a 2990 mm² die, yielding a transistor density of 107.0M per mm². The Arc A530M integrates 11,500 million transistors on a 269 mm² die, yielding 42.8M per mm². The MI455X die is roughly eleven times larger and carries nearly twenty-eight times the transistor count. Its density advantage is about 2.5 times.

Memory architecture diverges completely. The MI455X uses HBM4 with 432 GB capacity, a 24576 bit bus, and 23.3 TB/s bandwidth. The Arc A530M uses GDDR6 with 8 GB capacity, a 128 bit bus, and 224.0 GB/s bandwidth. Clock behavior also differs. The MI455X has a base clock of 1000 MHz and a boost of 2400 MHz, with memory at 1900 MHz (7.6 Gbps effective). The Arc A530M has a base of 900 MHz and a boost of 1300 MHz, with memory at 1750 MHz (14 Gbps effective). The MI455X boosts nearly twice as high as the Arc part's boost clock.

The compute pipelines reflect different priorities. The MI455X packs 1024 TMUs and zero ROPs, confirming a compute-centric design with no raster output stage. The Arc A530M has 96 TMUs and 48 ROPs, plus 12 ray tracing cores. The MI455X lists no RT cores and no tensor cores. The Arc A530M also lists no tensor cores. The FP16 ratios differ: the MI455X runs FP16 at 1:1 with FP32, while the Arc A530M runs FP16 at 2:1, meaning it processes two FP16 operations per FP32 operation. The MI455X uses a 1:1 ratio, which is typical for compute accelerators that need full FP16 throughput.

Interface and power delivery are equally divergent. The MI455X uses PCIe 6.0 x16, while the Arc A530M uses PCIe 4.0 x8. The MI455X draws 2300 W TDP with a suggested PSU of 2700 W, no power connectors (it is an EAM Module), and a slot width of EAM Module. The Arc A530M draws 65 W TDP, has no listed power connectors, no suggested PSU, and an IGP slot width. The MI455X is a module-level accelerator; the Arc A530M is an integrated graphics part for portable devices.

FAQ

Q: Which GPU has higher raw FP32 compute?

A: The MI455X lists 157.3 TFLOPS FP32, versus 3.994 TFLOPS for the Arc A530M.

Q: Does the Arc A530M support ray tracing?

A: Yes, the Arc A530M lists 12 ray tracing cores. The MI455X lists no RT cores.

Q: Which part has more memory bandwidth?

A: The MI455X has 23.3 TB/s bandwidth over a 24576 bit HBM4 bus. The Arc A530M has 224.0 GB/s over a 128 bit GDDR6 bus.

Q: What is the Arc A530M's average benchmark score?

A: The Arc A530M has an average benchmark score of 46614 across two tests: Geekbench OpenCL at 49735 and Geekbench Vulkan at 43492.

Q: Does the MI455X have any display outputs?

A: No, the MI455X lists "No outputs." The Arc A530M lists "Portable Device Dependent" outputs.

Q: What are the nearest rivals to the Arc A530M?

A: The nearest rivals are the AMD Radeon RX 5600M at 46601 (0% delta), AMD Radeon RX 6550M at 46702 (-0.2% delta), NVIDIA RTX A2000 at 46043 (1.2% delta), and NVIDIA RTX 5880 Ada Generation at 45972 (1.4% delta).

Head-to-Head Benchmarks

The head-to-head benchmark table in the database is empty. There are no recorded tests where both the MI455X and the Arc A530M ran the same workload. The wins count is zero for both parts. This absence of data is the central finding of the comparison.

The largest wins in this matchup are therefore specification-based, not performance-based. The MI455X leads in FP32 compute by a factor of roughly 39 (157.3 TFLOPS versus 3.994 TFLOPS). It leads in texture rate by a factor of roughly 20 (2,457.6 GTexel/s versus 124.8 GTexel/s). It leads in memory bandwidth by a factor of roughly 104 (23.3 TB/s versus 224.0 GB/s). It leads in memory capacity by a factor of 54 (432 GB versus 8 GB). It leads in shading units by a factor of roughly 21 (32768 versus 1536).

The Arc A530M leads in pixel rate, listing 62.40 GPixel/s versus 0 MPixel/s for the MI455X. It leads in API support, with DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the MI455X lists N/A for all three. It leads in FP16 efficiency in one sense: its FP16 figure of 7.987 TFLOPS at a 2:1 ratio exceeds its FP32 figure, whereas the MI455X runs FP16 at 1:1 with the same 157.3 TFLOPS as FP32.

The Arc A530M's recorded scores place it within a narrow competitive band. Its Geekbench OpenCL score of 49735 is the higher of its two results, while its Vulkan score of 43492 is about 12.5% lower. Its average of 46614 sits between the RX 5600M at 46601 and the RX 6550M at 46702. The spread across its four nearest rivals is only 1.6 percentage points, from -0.2% to 1.4%. This indicates a tightly contested segment where small score differences separate the Arc A530M from its peers.

Specification Differences

The two parts differ in nearly every recorded field. Process node: 2 nm for the MI455X, 6 nm for the Arc A530M. Foundry is the same (TSMC) for both. Transistors: 320,000 million versus 11,500 million. Die size: 2990 mm² versus 269 mm². Transistor density: 107.0M per mm² versus 42.8M per mm².

Clocks differ. Base: 1000 MHz versus 900 MHz. Boost: 2400 MHz versus 1300 MHz. Memory clock: 1900 MHz (7.6 Gbps effective) versus 1750 MHz (14 Gbps effective). Memory: 432 GB HBM4 versus 8 GB GDDR6. Bus width: 24576 bit versus 128 bit. Bandwidth: 23.3 TB/s versus 224.0 GB/s.

Compute units differ. Shading units: 32768 versus 1536. TMUs: 1024 versus 96. ROPs: 0 versus 48. RT cores: none listed versus 12. Tensor cores: none listed on either. Pixel rate: 0 MPixel/s versus 62.40 GPixel/s. Texture rate: 2,457.6 GTexel/s versus 124.8 GTexel/s. FP32: 157.3 TFLOPS versus 3.994 TFLOPS. FP16: 157.3 TFLOPS (1:1) versus 7.987 TFLOPS (2:1).

Power and form factor differ. TDP: 2300 W versus 65 W. Slot width: EAM Module versus IGP. Power connectors: none on the MI455X, none listed on the Arc A530M. Suggested PSU: 2700 W for the MI455X, not listed for the Arc A530M. Bus interface: PCIe 6.0 x16 versus PCIe 4.0 x8. Display outputs: no outputs versus portable device dependent. APIs: N/A versus DirectX 12 Ultimate (12_2), OpenGL 4.6, Vulkan 1.4.

Release timing differs. The MI455X has a release date of 2026-07-22, while the Arc A530M has a release date of 2023-07-31. Production status: not listed for the MI455X, active for the Arc A530M. The MI455X predecessor is listed as Radeon Instinct, while the Arc A530M has no predecessor listed. Neither part has a successor listed. Neither part has a launch MSRP. The MI455X belongs to the Instinct (MIx) generation, while the Arc A530M belongs to the Alchemist (Arc 5 Mobile) generation. The MI455X architecture is CDNA 5.0, versus Xe-HPG for the Arc A530M.