AMD Instinct MI455X vs Intel Arc Pro B60 Dual Comparison

Head-to-Head Benchmarks

The database records no direct benchmark comparisons between the AMD Instinct MI455X and the Intel Arc Pro B60 Dual. Both entries hold a 50th percentile ranking against all GPUs, with an average benchmark score of zero in each case. The absence of measured performance data means the head-to-head comparison rests entirely on the recorded architectural and specification differences.

The raw compute figures separate the two sharply. The MI455X delivers 157.3 TFLOPS of FP32 throughput, while the Arc Pro B60 Dual reaches 12.29 TFLOPS. That is a 12.8x advantage for the AMD part in single-precision floating-point work. The gap persists in FP16, where the MI455X again produces 157.3 TFLOPS (1:1 ratio) versus the Intel card's 24.58 TFLOPS (2:1 ratio). The MI455X leads by 6.4x in half-precision compute.

Memory throughput follows a similar pattern. The MI455X accesses 432 GB of HBM4 memory across a 24576-bit bus, yielding 23.3 TB/s of bandwidth. The Arc Pro B60 Dual uses 24 GB of GDDR6 on a 192-bit bus, producing 456.0 GB/s. The AMD accelerator holds a 51.1x bandwidth advantage. The Intel card counters with a higher memory clock in raw terms: 2375 MHz (19 Gbps effective) versus 1900 MHz (7.6 Gbps effective) for the MI455X, though the effective data rate comparison still favors the AMD part because of the enormous bus width.

Texture throughput also favors the MI455X decisively. The AMD chip achieves 2,457.6 GTexel/s from its 1024 texture mapping units, while the Intel GPU reaches 384.0 GTexel/s with 160 TMUs. That is a 6.4x lead. Pixel rate flips the result: the Arc Pro B60 Dual records 192.0 GPixel/s from its 80 raster operation units, while the MI455X lists 0 MPixel/s, indicating no conventional ROP output path.

Clock speeds show a mixed picture. Both parts boost to 2400 MHz. The base clocks differ: the Arc Pro B60 Dual starts at 2000 MHz, the MI455X at 1000 MHz. The Intel GPU runs its base clock 2x higher, though the AMD part's boost clock matches it.

Where Each One Wins

The MI455X wins outright in compute density and memory capacity. Its 32768 shading units dwarf the Arc Pro B60 Dual's 2560. The 432 GB memory pool suits workloads that need to hold massive datasets on-device, while the 23.3 TB/s bandwidth supports sustained streaming of that data. The 157.3 TFLOPS FP32 and FP16 figures place it in a class for large-scale scientific computing and AI training runs where raw arithmetic dominates.

The Arc Pro B60 Dual wins in areas the MI455X cannot address. It carries 20 ray tracing cores, while the AMD part lists none. It supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4; the MI455X records N/A for all three APIs. The Intel card outputs video through 4x mini-DisplayPort 2.1 connectors, while the MI455X has no display outputs. The Arc Pro B60 Dual is an active production card with a dual-slot form factor, a 16-pin power connector, and dimensions of 300 mm by 110 mm by 40 mm. The MI455X is an EAM module with no power connectors and no recorded dimensions.

The pixel rate advantage belongs to Intel: 192.0 GPixel/s versus 0 MPixel/s. This indicates the Arc Pro B60 Dual can drive framebuffer operations and rasterization work, a function the MI455X does not expose in the recorded data. The Intel card's 80 ROPs, 160 TMUs, and 2560 shading units form a conventional GPU pipeline, whereas the MI455X's 1024 TMUs and 32768 shading units with zero ROPs suggest a compute-oriented design.

The power envelope separates them further. The MI455X has a TDP of 2300 W with a suggested PSU of 2700 W. The Arc Pro B60 Dual draws 400 W and recommends an 800 W PSU. The Intel part fits into standard server and workstation power budgets, while the AMD accelerator demands the kind of power delivery found only in dedicated high-density compute racks.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The AMD Instinct MI455X records 157.3 TFLOPS of FP32 throughput, compared to 12.29 TFLOPS for the Intel Arc Pro B60 Dual. The AMD part delivers 12.8x the single-precision performance.

Q: What memory configurations do the two cards use?

A: The MI455X uses 432 GB of HBM4 memory on a 24576-bit bus with 23.3 TB/s bandwidth. The Arc Pro B60 Dual uses 24 GB of GDDR6 on a 192-bit bus with 456.0 GB/s bandwidth.

Q: Does the Intel card support modern graphics APIs?

A: Yes. The Arc Pro B60 Dual supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The MI455X lists N/A for DirectX, OpenGL, and Vulkan.

Q: Can either GPU output video to displays?

A: The Intel Arc Pro B60 Dual has 4x mini-DisplayPort 2.1 outputs. The AMD Instinct MI455X records no display outputs.

Q: What is the release timeline for both products?

A: The Intel Arc Pro B60 Dual was released on 2025-09-04 with a launch MSRP of 1,199 USD. The AMD Instinct MI455X has a release date of 2026-07-22.

Q: How do the power requirements compare?

A: The MI455X has a TDP of 2300 W and a suggested PSU of 2700 W. The Arc Pro B60 Dual has a TDP of 400 W and a suggested PSU of 800 W.

Specification Differences

The two GPUs differ across nearly every recorded specification. The MI455X uses a 2 nm process node, while the Arc Pro B60 Dual uses a 5 nm node. Both are fabricated by TSMC. Transistor counts diverge sharply: the MI455X holds 320,000 million transistors on a 2990 mm² die, while the Arc Pro B60 Dual packs 19,600 million transistors on a 272 mm² die. Transistor density favors AMD at 107.0M per mm² versus Intel's 72.1M per mm².

Memory specifications differ completely. The MI455X uses 432 GB of HBM4 with a 24576-bit bus and 23.3 TB/s bandwidth. The Arc Pro B60 Dual uses 24 GB of GDDR6 with a 192-bit bus and 456.0 GB/s bandwidth. Memory clocks run at 1900 MHz (7.6 Gbps effective) for the AMD part and 2375 MHz (19 Gbps effective) for the Intel card.

Compute unit counts diverge across the board. The MI455X has 32768 shading units, 1024 TMUs, and 0 ROPs. The Arc Pro B60 Dual has 2560 shading units, 160 TMUs, and 80 ROPs. The Intel card includes 20 ray tracing cores; the AMD part lists none. Pixel rates are 0 MPixel/s for the MI455X and 192.0 GPixel/s for the Arc Pro B60 Dual. Texture rates are 2,457.6 GTexel/s and 384.0 GTexel/s respectively.

Physical and power attributes separate them. The MI455X is an EAM Module with no power connectors, no display outputs, and no recorded dimensions. The Arc Pro B60 Dual is a dual-slot card with a 1x 16-pin power connector, 4x mini-DisplayPort 2.1 outputs, and dimensions of 300 mm by 110 mm by 40 mm. TDP values are 2300 W for the AMD part and 400 W for the Intel part, with suggested PSUs of 2700 W and 800 W. Bus interfaces also differ: PCIe 6.0 x16 for the MI455X, PCIe 5.0 x8 for the Arc Pro B60 Dual.

The MI455X uses the CDNA 5.0 architecture with the MI450 256CU chip, part of the Instinct (MIx) generation. The Arc Pro B60 Dual uses the Xe2-HPG architecture with the BMG-G21 chip, part of the Battlemage (Pro Series) generation. The MI455X lists Radeon Instinct as its predecessor; the Arc Pro B60 Dual lists no predecessor. The Arc Pro B60 Dual records an active production status, while the MI455X's production status is not recorded.

Architecture Differences

The AMD Instinct MI455X builds on CDNA 5.0, a compute-focused architecture designed around the MI450 256CU chip. The Intel Arc Pro B60 Dual uses Xe2-HPG, a gaming and workstation-oriented architecture built around the BMG-G21 chip. These architectural choices shape every downstream specification.

The CDNA design emphasizes raw arithmetic throughput over graphics features. The MI455X delivers 157.3 TFLOPS in both FP32 and FP16 (1:1 ratio), a configuration that indicates no dedicated half-precision acceleration path; the same units process both formats at equal rates. The 32768 shading units and 1024 TMUs feed that compute engine, while the absence of ROPs and display outputs confirms a pure accelerator role. The 432 GB HBM4 pool with a 24576-bit bus provides the memory capacity and bandwidth needed to keep those shading units saturated. The 2 nm process from TSMC allows 320,000 million transistors on a 2990 mm² die, a density of 107.0M per mm² that supports the massive compute array.

The Xe2-HPG architecture takes a different path. It includes 20 ray tracing cores alongside 2560 shading units, 160 TMUs, and 80 ROPs. The 192.0 GPixel/s pixel rate and 384.0 GTexel/s texture rate show a balanced graphics pipeline. FP16 throughput doubles FP32 (24.58 TFLOPS versus 12.29 TFLOPS), indicating a 2:1 ratio that accelerates half-precision workloads on dedicated hardware. The 24 GB GDDR6 memory on a 192-bit bus delivers 456.0 GB/s, a bandwidth figure appropriate for graphics workloads rather than large-scale compute. The 5 nm process contains 19,600 million transistors on a 272 mm² die, yielding 72.1M per mm².

The API support reflects their divergent purposes. The Arc Pro B60 Dual records DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, plus 4x mini-DisplayPort 2.1 outputs for direct display connection. The MI455X lists N/A for all three APIs and has no display outputs. The Intel card's dual-slot form factor and 1x 16-pin power connector suit a conventional workstation chassis, while the EAM Module format and absence of power connectors on the AMD part indicate a system-level integration approach.

Manufacturing details also differ. Both use TSMC, but the process nodes diverge: 2 nm for AMD, 5 nm for Intel. The transistor density gap (107.0M per mm² versus 72.1M per mm²) reflects the more advanced node. Die sizes are 2990 mm² for the MI455X and 272 mm² for the Arc Pro B60 Dual, an 11x difference that carries through to the transistor count: 320,000 million versus 19,600 million.

The clock behavior shows another architectural split. Both parts boost to 2400 MHz, but the base clocks differ by 2x: 1000 MHz for the MI455X, 2000 MHz for the Arc Pro B60 Dual. The AMD part relies on its massive compute array rather than high base frequency, while the Intel card runs closer to its boost speed at idle. Memory clocks favor Intel in raw frequency (2375 MHz versus 1900 MHz), though the effective bandwidth comparison reverses because of the bus width disparity.

Release dates and market positioning round out the architectural story. The Arc Pro B60 Dual launched on 2025-09-04 with a launch MSRP of 1,199 USD and remains in active production. The MI455X lists a release date of 2026-07-22 with no recorded production status or launch MSRP. The Intel card has no predecessor in the database; the AMD part lists Radeon Instinct as its predecessor. These dates and lineage details place the two products in different segments: one a shipping graphics workstation card, the other a forthcoming compute accelerator.