AMD Instinct MI455X vs Intel Arc Pro B50 Comparison

Head-to-Head Benchmarks

The AMD Instinct MI455X and Intel Arc Pro B50 occupy vastly different positions in the database, and their head-to-head comparison is defined by absence on one side and a specific set of measurements on the other. The MI455X has no recorded benchmark entries, resulting in an average benchmark score of 0 and a percentile rank of 50 among all GPUs. The Arc Pro B50, in contrast, has eight recorded benchmark results across DirectX and compute workloads, with an average score of 2660 and a percentile rank of 17.

The Arc Pro B50's strongest result comes from the PassMark G3D test, where it scores 12553. This is the highest single benchmark score in its recorded set, indicating its DirectX 11 and OpenGL performance is substantially ahead of its own compute and DirectX 12 results. The 3DMark Steel Nomad DX12 test returns a score of 1604, which is a modern, demanding workload, and the card manages a respectable showing there. The PassMark GPU Compute score of 6037 confirms that the card has usable compute throughput, though it trails the card's own G3D result by a wide margin.

The PassMark DirectX 9 score of 144 and DirectX 10 score of 58 show that the Arc Pro B50 is far less effective in older DirectX APIs, which is a common pattern for newer architectures that prioritize modern feature sets. DirectX 11 scores 100, and DirectX 12 scores 64, meaning the card's legacy performance is inconsistent and generally low across the board. The PassMark G2D score of 717 is a separate 2D graphics measurement, and it is the second-highest recorded score for the card, indicating solid desktop composition and 2D acceleration capability.

Since the MI455X has no benchmark scores, there are no direct numerical comparisons to be made between the two cards. The database records no head-to-head benchmark entries for this pairing, and the wins count for each side is zero. The MI455X's 50th percentile placement is a neutral position, reflecting the absence of data rather than measured performance. The Arc Pro B50's 17th percentile places it below the majority of all GPUs in the database, indicating that its average score of 2660 is modest in the broader landscape.

The nearest rivals for the Arc Pro B50 further contextualize its average score. The NVIDIA GeForce GT 1030 scores 2662, which is 0.1 percent higher than the Arc Pro B50. The NVIDIA Quadro K1100M scores 2664, 0.2 percent higher. The NVIDIA GeForce GT 440 scores 2645, which is 0.6 percent lower. The NVIDIA GeForce RTX 5070 SUPER scores 2690, 1.1 percent higher. These deltas are all within a narrow band of roughly one percent, meaning the Arc Pro B50's average benchmark score is statistically similar to a mix of entry-level and mid-range NVIDIA cards from different eras. The RTX 5070 SUPER being only 1.1 percent ahead is notable, as it indicates the average score metric compresses very different performance profiles into a single number.

Where Each One Wins

The Arc Pro B50 wins in every measured category because it is the only card with recorded results. Its best areas are 3D graphics performance, where the PassMark G3D score of 12553 dominates its own other scores, and modern 3DMark testing, where 1604 points in Steel Nomad DX12 demonstrates capability in a current-generation workload. The compute score of 6037 is also a win for the card in the context of this comparison, though it is less than half of the G3D score, suggesting the card is more optimized for graphics rendering than general compute.

The card's 2D performance, measured at 717 in PassMark G2D, is another area where it records a positive result. The DirectX 9 score of 144 is the best of the legacy API results, while DirectX 10 at 58 is the weakest. DirectX 11 at 100 and DirectX 12 at 64 sit in between. The card's architecture, Xe2-HPG on a 5 nm TSMC process, supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, which aligns with its stronger modern API results and weaker legacy ones.

The MI455X wins in specifications that are not reflected in benchmark scores. It uses a CDNA 5.0 architecture on a 2 nm TSMC process, with 320,000 million transistors on a 2990 mm² die, giving a transistor density of 107.0 million per mm². Its memory subsystem is 432 GB of HBM4 on a 24576-bit bus, with 23.3 TB/s of bandwidth. The Arc Pro B50, by comparison, uses 19,600 million transistors on a 272 mm² die, with a density of 72.1 million per mm², and 16 GB of GDDR6 on a 128-bit bus with 224.0 GB/s of bandwidth. These are enormous differences in raw hardware resources, but the database contains no measured performance for the MI455X to confirm what those resources deliver.

The MI455X also has far higher compute specifications on paper. It lists 32768 shading units, 1024 TMUs, and 0 ROPs, with a texture rate of 2457.6 GTexel/s and FP32 throughput of 157.3 TFLOPS. The Arc Pro B50 has 2048 shading units, 128 TMUs, 16 ROPs, and 16 RT cores, with a texture rate of 332.8 GTexel/s, FP32 of 10.65 TFLOPS, and FP16 of 21.30 TFLOPS at a 2:1 ratio. The MI455X lists FP16 at 157.3 TFLOPS with a 1:1 ratio, matching its FP32 output. The power requirements are also starkly different: the MI455X has a TDP of 2300 W and a suggested PSU of 2700 W, while the Arc Pro B50 has a TDP of 70 W and a suggested PSU of 250 W.

The Verdict

The recorded data supports only one clear conclusion: the Intel Arc Pro B50 is the only card in this comparison with measurable benchmark results. Its average score of 2660 and its placement at the 17th percentile of all GPUs define its position as an entry-level card, closely matched by the GT 1030, Quadro K1100M, GT 440, and RTX 5070 SUPER in average score terms. The MI455X has no scores, no wins, and no recorded performance, so no database-driven case can be made for it outperforming the Arc Pro B50 in any measured workload.

For a user selecting strictly on benchmark evidence, the Arc Pro B50 is the only option with data. Its strengths are in 3D graphics and modern DirectX workloads, with a G3D score of 12553 and a Steel Nomad DX12 score of 1604. Its legacy DirectX performance is weak, and its compute score of 6037 is moderate. The MI455X, despite its massive hardware specifications, has no benchmark presence in the database, and its 50th percentile rank is a placeholder rather than a measured outcome.

The Arc Pro B50 carries a launch MSRP of 349 USD, which appears once in the database. The MI455X has no launch MSRP recorded. The Arc Pro B50 is an active product with a release date of September 4, 2025, while the MI455X has a release date of July 22, 2026, and no production status listed. Neither card has a successor recorded, and the MI455X lists the Radeon Instinct as its predecessor.

FAQ

Q: What is the average benchmark score of the Intel Arc Pro B50?

A: The Arc Pro B50 has an average benchmark score of 2660 across its eight recorded tests, placing it at the 17th percentile of all GPUs.

Q: Does the AMD Instinct MI455X have any benchmark scores?

A: No. The MI455X has an empty benchmarks list, an average score of 0, and a percentile rank of 50.

Q: How does the Arc Pro B50 compare to the NVIDIA GeForce GT 1030?

A: The GT 1030 has an average score of 2662, which is 0.1 percent higher than the Arc Pro B50's 2660.

Q: What is the best recorded benchmark result for the Arc Pro B50?

A: The PassMark G3D score of 12553 is the highest, followed by the PassMark GPU Compute score of 6037 and the 3DMark Steel Nomad DX12 score of 1604.

Q: What memory configurations do the two cards use?

A: The MI455X uses 432 GB of HBM4 on a 24576-bit bus with 23.3 TB/s bandwidth. The Arc Pro B50 uses 16 GB of GDDR6 on a 128-bit bus with 224.0 GB/s bandwidth.

Q: What are the power requirements for each card?

A: The MI455X has a TDP of 2300 W and a suggested PSU of 2700 W. The Arc Pro B50 has a TDP of 70 W and a suggested PSU of 250 W.

Architecture Differences

The two cards are built on different architectures, processes, and design philosophies. The AMD Instinct MI455X uses CDNA 5.0, a compute-focused architecture, manufactured on a 2 nm TSMC process. The Intel Arc Pro B50 uses Xe2-HPG, a graphics-focused architecture, on a 5 nm TSMC process. The transistor counts reflect the scale difference: the MI455X has 320,000 million transistors on a 2990 mm² die, while the Arc Pro B50 has 19,600 million transistors on a 272 mm² die. Transistor density is higher on the MI455X at 107.0 million per mm² versus 72.1 million per mm² for the Arc Pro B50.

The memory architectures are fundamentally different. The MI455X uses 432 GB of HBM4 with a 24576-bit bus and 23.3 TB/s bandwidth, a configuration designed for massive data movement. The Arc Pro B50 uses 16 GB of GDDR6 on a 128-bit bus with 224.0 GB/s bandwidth, a conventional graphics memory setup. The MI455X has no display outputs, while the Arc Pro B50 has four mini-DisplayPort 2.1 outputs, confirming the former is a compute accelerator and the latter is a workstation graphics card.

The compute resources differ by an order of magnitude. The MI455X has 32768 shading units, 1024 TMUs, and 0 ROPs, with FP32 throughput of 157.3 TFLOPS and matching FP16 of 157.3 TFLOPS at a 1:1 ratio. Its texture rate is 2457.6 GTexel/s, and its pixel rate is 0 MPixel/s. The Arc Pro B50 has 2048 shading units, 128 TMUs, 16 ROPs, and 16 RT cores, with FP32 of 10.65 TFLOPS and FP16 of 21.30 TFLOPS at a 2:1 ratio. Its texture rate is 332.8 GTexel/s, and its pixel rate is 41.60 GPixel/s. The presence of RT cores and ROPs on the Arc Pro B50 indicates a rendering pipeline, while their absence on the MI455X indicates a pure compute design.

Clock speeds also differ. The MI455X has a base clock of 1000 MHz and a boost clock of 2400 MHz, with memory at 1900 MHz for 7.6 Gbps effective. The Arc Pro B50 has a base clock of 1700 MHz and a boost clock of 2600 MHz, with memory at 1750 MHz for 14 Gbps effective. The MI455X uses a PCIe 6.0 x16 interface, while the Arc Pro B50 uses PCIe 5.0 x8. The MI455X has no power connectors and is an EAM module, while the Arc Pro B50 is a dual-slot card with no power connectors and dimensions of 167 mm by 69 mm by 40 mm. API support is absent for the MI455X, while the Arc Pro B50 supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4.