AMD Instinct MI350X vs Intel Data Center GPU Max Subsystem Comparison

FAQ

Q: What are the core differences in manufacturing process between the AMD Instinct MI350X and the Intel Data Center GPU Max Subsystem?

A: The AMD Instinct MI350X uses a 3 nm process from TSMC and contains 185,000 million transistors on a 2380 mm² die. The Intel Data Center GPU Max Subsystem uses a 10 nm process from Intel, with 100,000 million transistors on a 1280 mm² die.

Q: How do the memory configurations compare between the two accelerators?

A: The AMD Instinct MI350X offers 288 GB of HBM3e memory with a bandwidth of 8.19 TB/s. The Intel Data Center GPU Max Subsystem provides 128 GB of HBM2e memory with a bandwidth of 3.21 TB/s. Both use an 8192-bit memory bus.

Q: What is the difference in thermal design power between the two products?

A: The AMD Instinct MI350X has a TDP of 1000 W with a suggested PSU of 1400 W. The Intel Data Center GPU Max Subsystem has a much higher TDP of 2400 W and a suggested PSU of 2800 W.

Q: Which product has higher clock speeds?

A: The AMD Instinct MI350X has a base clock of 1000 MHz and a boost clock of 2200 MHz. The Intel Data Center GPU Max Subsystem operates at a base clock of 900 MHz and a boost clock of 1600 MHz.

Q: Do these accelerators support standard graphics APIs?

A: The AMD Instinct MI350X reports no support for DirectX, OpenGL, or Vulkan. The Intel Data Center GPU Max Subsystem supports DirectX 12 (12_1) and OpenGL 4.6, but no Vulkan support is listed.

Q: What are the physical form factor differences?

A: The AMD Instinct MI350X is an OAM Module measuring 102 mm in length and 165 mm in width. The Intel Data Center GPU Max Subsystem is a Dual-slot card with a length of 267 mm, and it requires a single 16-pin power connector.

Architecture Differences

The AMD Instinct MI350X is built on the CDNA 4.0 architecture, representing the Instinct (MIx) generation. The chip is designated as MI350 256CU. In contrast, the Intel Data Center GPU Max Subsystem uses the Generation 12.5 architecture with the Ponte Vecchio chip, belonging to the Data Center GPU (Ponte Vecchio) generation.

The manufacturing processes differ significantly. AMD employs a 3 nm process from TSMC, while Intel uses a 10 nm process from its own foundry. This process gap contributes to notable differences in transistor density: the AMD chip achieves 77.7M transistors per mm², while the Intel chip achieves 78.1M transistors per mm². Despite the similar density figures, the AMD die is substantially larger at 2380 mm² versus Intel's 1280 mm², which explains the higher total transistor count of 185,000 million for AMD versus 100,000 million for Intel.

Both accelerators share certain core configurations. Each has 16,384 shading units and 1,024 texture mapping units. Neither has ROPs, and both report a pixel rate of 0 MPixel/s. The Intel part includes 128 ray tracing cores, a feature not listed for the AMD product. Tensor core counts are not specified for either accelerator.

Memory architecture differs in generation and capacity. The AMD Instinct MI350X uses HBM3e memory totaling 288 GB, while the Intel part uses HBM2e memory totaling 128 GB. Both use an 8192-bit bus, but the memory clock speeds differ: AMD runs at 2000 MHz (8 Gbps effective) versus Intel's 1565 MHz (3.1 Gbps effective). This results in a bandwidth advantage for AMD at 8.19 TB/s compared to Intel's 3.21 TB/s.

Clock speeds also favor AMD. The base clock is 1000 MHz for AMD versus 900 MHz for Intel, and the boost clock is 2200 MHz for AMD versus 1600 MHz for Intel. These differences translate directly into compute throughput: AMD delivers 72.09 TFLOPS for both FP32 and FP16 (1:1), while Intel delivers 52.43 TFLOPS for both precision formats.

Power requirements are starkly different. The AMD part has a TDP of 1000 W with a suggested PSU of 1400 W. The Intel part has a TDP of 2400 W with a suggested PSU of 2800 W. The Intel card draws power through a single 16-pin connector, while the AMD OAM module lists no power connectors. The Intel part uses a dual-slot form factor, whereas the AMD part is an OAM module.

The Intel Data Center GPU Max Subsystem supports DirectX 12 (12_1) and OpenGL 4.6, while the AMD Instinct MI350X reports no API support for DirectX, OpenGL, or Vulkan. Both have no display outputs and use a PCIe 5.0 x16 bus interface.

Where Each One Wins

The benchmark data shows a clear division of strengths based on the recorded specifications. The AMD Instinct MI350X wins decisively in raw compute throughput. Its FP32 performance of 72.09 TFLOPS is significantly higher than Intel's 52.43 TFLOPS, a gap of roughly 37%. The same ratio applies to FP16 performance, where AMD also delivers 72.09 TFLOPS versus Intel's 52.43 TFLOPS. For workloads that depend on dense matrix math, such as AI training or inference, the AMD part holds a substantial advantage.

Memory bandwidth is another area where AMD wins outright. The HBM3e implementation provides 8.19 TB/s of bandwidth, which is more than 2.5 times the 3.21 TB/s available on the Intel part. Memory capacity also favors AMD at 288 GB versus 128 GB. Workloads that require large model residency or massive data sets will benefit from the AMD configuration.

The Intel Data Center GPU Max Subsystem has its own areas of advantage. Its thermal design power of 2400 W, while higher, indicates a design that can push more electrical power through the card. The dual-slot form factor with a single 16-pin power connector may integrate more easily into existing server infrastructure compared to the OAM module format of the AMD part.

Intel also holds an edge in software compatibility for graphics APIs. The support for DirectX 12 (12_1) and OpenGL 4.6 means the Intel part can run certain graphics workloads, while the AMD part lists no such API support. This could matter for heterogeneous computing environments that mix compute and graphics tasks.

The Intel part includes 128 ray tracing cores, a feature absent from the AMD specifications. For any workload that leverages ray tracing, the Intel accelerator has a functional advantage, even if the primary use case for both products is data center compute.

The production status also differs. The Intel part is listed as Active, while the AMD part has no production status specified. The Intel product has a defined successor, the H3C Graphics, while the AMD product has no successor listed. The AMD part lists its predecessor as Radeon Instinct.

Specification Differences

The AMD Instinct MI350X and Intel Data Center GPU Max Subsystem differ across nearly every major specification category.

Process and die: AMD uses a 3 nm TSMC process with a 2380 mm² die. Intel uses a 10 nm process with a 1280 mm² die. Transistor counts are 185,000 million for AMD and 100,000 million for Intel.

Clocks: AMD has a base clock of 1000 MHz and a boost clock of 2200 MHz. Intel has a base clock of 900 MHz and a boost clock of 1600 MHz. Memory clocks are 2000 MHz (8 Gbps effective) for AMD and 1565 MHz (3.1 Gbps effective) for Intel.

Memory: AMD provides 288 GB of HBM3e with 8.19 TB/s bandwidth. Intel provides 128 GB of HBM2e with 3.21 TB/s bandwidth. Both share an 8192-bit bus width.

Compute rates: AMD delivers 72.09 TFLOPS for FP32 and FP16. Intel delivers 52.43 TFLOPS for FP32 and FP16. Texture rates are 2,252.8 GTexel/s for AMD and 1,638.4 GTexel/s for Intel.

Power and cooling: AMD has a TDP of 1000 W and a suggested PSU of 1400 W. Intel has a TDP of 2400 W and a suggested PSU of 2800 W. AMD is an OAM Module with no power connectors. Intel is a dual-slot card with a single 16-pin connector.

Physical dimensions: AMD measures 102 mm in length and 165 mm in width. Intel measures 267 mm in length with no width specified.

API support: AMD lists N/A for DirectX, OpenGL, and Vulkan. Intel supports DirectX 12 (12_1) and OpenGL 4.6, with Vulkan not specified.

Feature sets: Intel includes 128 ray tracing cores; AMD does not list any. Both have 16,384 shading units and 1,024 TMUs. Neither has ROPs.

Release and status: AMD was released on 2025-06-11. Intel was released on 2023-01-09. Intel is listed as Active in production. AMD has no production status. Intel has a successor named H3C Graphics. AMD lists Radeon Instinct as its predecessor.

Head-to-Head Benchmarks

The recorded data shows no direct head-to-head benchmark results between the AMD Instinct MI350X and Intel Data Center GPU Max Subsystem, as both products have empty benchmark arrays. However, the specification data provides a basis for comparing their relative performance capabilities.

The largest single advantage for the AMD Instinct MI350X appears in memory bandwidth. The AMD part delivers 8.19 TB/s, which is 4.98 TB/s higher than Intel's 3.21 TB/s. That is an advantage of approximately 155% for AMD. In practical terms, memory-bound workloads such as large language model training or data analytics will experience substantially lower latency and higher throughput on the AMD platform.

Compute throughput also strongly favors AMD. The FP32 figure of 72.09 TFLOPS versus Intel's 52.43 TFLOPS represents a lead of 19.66 TFLOPS, or roughly 37.5%. The same margin applies to FP16 performance, since both parts use a 1:1 ratio for FP16 relative to FP32. For AI inference and training workloads that rely on FP16 accumulation, the AMD part will complete iterations faster.

Texture rate follows the same pattern. AMD achieves 2,252.8 GTexel/s while Intel achieves 1,638.4 GTexel/s. The difference of 614.4 GTexel/s gives AMD a lead of about 37.5%, consistent with the FP32 gap since both parts have identical TMU counts.

Memory capacity is another decisive factor. The AMD part offers 288 GB, which is 160 GB more than Intel's 128 GB. This allows larger models and bigger batch sizes to fit entirely in on-board memory, avoiding the performance penalty of spilling to host memory.

Clock speed differences support the observed compute gaps. The AMD boost clock of 2200 MHz is 600 MHz higher than Intel's 1600 MHz boost. The base clock advantage is 100 MHz, with AMD at 1000 MHz versus Intel's 900 MHz.

The Intel Data Center GPU Max Subsystem does hold advantages in specific areas. Its ray tracing core count of 128 provides functionality that AMD does not list. Its support for DirectX 12 (12_1) and OpenGL 4.6 enables graphics workloads that the AMD part cannot handle. The Intel part also has a lower transistor density at 78.1M per mm², which is marginally higher than AMD's 77.7M per mm², though this is a manufacturing metric rather than a performance one.

Power efficiency, calculated as performance per watt, is not explicitly provided in the data. However, the AMD part delivers 72.09 TFLOPS with a 1000 W TDP, while Intel delivers 52.43 TFLOPS with a 2400 W TDP. The AMD part achieves roughly 72 TFLOPS per 1000 W, while Intel achieves roughly 22 TFLOPS per 1000 W. This indicates a substantial efficiency advantage for the AMD architecture.

Both products share the same PCIe 5.0 x16 bus interface, so host connectivity is equivalent. Neither has display outputs, confirming their role as dedicated accelerators rather than graphics cards.

The production status of the Intel part is Active, and it has a successor in the H3C Graphics. The AMD part has no production status or successor listed, though its release date of 2025-06-11 is later than Intel's 2023-01-09 release. The AMD part lists Radeon Instinct as its predecessor, indicating an established product lineage.

The overall picture from the recorded data shows the AMD Instinct MI350X leading in raw compute, memory capacity, memory bandwidth, and power efficiency. The Intel Data Center GPU Max Subsystem counters with graphics API support, ray tracing capability, and an active production status. Both are positioned as high-end data center accelerators, but the specification differences point to divergent strengths for different workload types.