AMD Radeon Instinct MI300A vs Intel Arc Pro B390 Comparison

Head-to-Head Benchmarks

The recorded database contains no head-to-head benchmark results for the AMD Radeon Instinct MI300A versus the Intel Arc Pro B390. The winsA and winsB fields are both zero, and the headToHeadBenchmarks array is empty. This means no direct performance comparison can be derived from measured data.

The AMD Radeon Instinct MI300A has an avgBenchmarkScore of 0 and a percentileVsAllGpus of 50. The Intel Arc Pro B390 also has an avgBenchmarkScore of 0 and a percentileVsAllGpus of 50. With identical percentile placements and no recorded scores, the two products cannot be ranked against one another using benchmark outcomes. Both occupy the median position across all GPUs in the database, but this is a percentile derived from an empty score set, so it does not reflect actual measured performance.

Because no benchmark data exists for either product, any comparison of raw speed, rendering throughput, or compute capability must rely on the architectural and specification fields in the database. These fields provide a basis for theoretical performance differences, but they are not substitutes for measured results.

FAQ

Q: What is the difference in FP32 compute throughput between the two products?

A: The AMD Radeon Instinct MI300A delivers 81.72 TFLOPS FP32, while the Intel Arc Pro B390 delivers 7.680 TFLOPS FP32. The AMD part offers roughly 10.6 times the single-precision floating-point throughput based on these recorded figures.

Q: How do the memory configurations compare?

A: The AMD Radeon Instinct MI300A uses 192 GB of HBM3 memory with an 8192-bit bus and 10.3 TB/s bandwidth. The Intel Arc Pro B390 uses System Shared memory with System Shared bus width and System Dependent bandwidth, meaning it relies on the host system's memory rather than dedicated VRAM.

Q: What are the transistor and die size figures for each product?

A: The AMD Radeon Instinct MI300A has 153,000 million transistors on a 1017 mm² die, yielding a transistor density of 150.4M per mm². The Intel Arc Pro B390 has unknown transistor count and die size, with no density figure recorded.

Q: Which product has a higher boost clock?

A: The Intel Arc Pro B390 boosts to 2500 MHz, while the AMD Radeon Instinct MI300A boosts to 2100 MHz. However, the AMD part has a much higher base clock at 1000 MHz versus 300 MHz for the Intel part.

Q: Do both products support the same graphics APIs?

A: No. The Intel Arc Pro B390 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The AMD Radeon Instinct MI300A has no recorded API support values in the database for DirectX, OpenGL, or Vulkan.

Q: What is the power consumption difference?

A: The AMD Radeon Instinct MI300A has a TDP of 750 W with a suggested PSU of 1150 W. The Intel Arc Pro B390 has a TDP of 80 W and no suggested PSU recorded.

Architecture Differences

The AMD Radeon Instinct MI300A uses the Aqua Vanjaram chip built on CDNA 3.0 architecture, fabricated by TSMC on a 5 nm process. The Intel Arc Pro B390 uses the Panther Lake chip built on Xe3-LPG architecture, fabricated by Intel on a 3 nm process. These are fundamentally different design philosophies: CDNA 3.0 is a compute-optimized data center architecture, while Xe3-LPG is a low-power integrated graphics architecture.

The AMD part integrates 19456 shading units, 1216 texture mapping units, and 0 ROPs. The Intel part integrates 1536 shading units, 48 texture mapping units, 24 ROPs, and 12 ray tracing cores. The absence of ROPs on the AMD part indicates it is not designed for rasterized display output, consistent with its "No outputs" display configuration. The Intel part, by contrast, has a pixel rate of 60.00 GPixel/s and supports portable device dependent outputs.

The AMD Radeon Instinct MI300A has a texture rate of 2,553.6 GTexel/s, while the Intel Arc Pro B390 has a texture rate of 120.0 GTexel/s. The AMD part's FP16 throughput is 653.7 TFLOPS at an 8:1 ratio, whereas the Intel part's FP16 throughput is 15.36 TFLOPS at a 2:1 ratio. The 8:1 ratio on the AMD part suggests a dedicated FP16 path that sacrifices some rate for precision, while the 2:1 ratio on the Intel part indicates a more conventional paired FP16 execution.

The AMD Radeon Instinct MI300A has a memory clock of 2525 MHz with 10.1 Gbps effective data rate, while the Intel Arc Pro B390 uses System Shared memory with no dedicated clock recorded. The AMD part's memory bandwidth of 10.3 TB/s is characteristic of HBM3 stacks, whereas the Intel part's bandwidth is "System Dependent," meaning it varies with the host platform.

Specification Differences

The AMD Radeon Instinct MI300A and Intel Arc Pro B390 differ across nearly every recorded specification field. The AMD part has a process node of 5 nm from TSMC, while the Intel part has a 3 nm process from Intel. Transistor count is 153,000 million for AMD and unknown for Intel. Die size is 1017 mm² for AMD and unknown for Intel. Transistor density is 150.4M per mm² for AMD and null for Intel.

Clock specifications differ significantly. The AMD part has a base clock of 1000 MHz and a boost clock of 2100 MHz, with a memory clock of 2525 MHz (10.1 Gbps effective). The Intel part has a base clock of 300 MHz and a boost clock of 2500 MHz, with System Shared memory clock. The AMD part's memory configuration is 192 GB of HBM3 with an 8192-bit bus and 10.3 TB/s bandwidth. The Intel part uses System Shared memory with System Shared bus width and System Dependent bandwidth.

Compute unit counts differ: AMD has 19456 shading units, 1216 TMUs, 0 ROPs, and no recorded RT cores or tensor cores. Intel has 1536 shading units, 48 TMUs, 24 ROPs, 12 RT cores, and no recorded tensor cores. Pixel rate is 0 MPixel/s for AMD and 60.00 GPixel/s for Intel. Texture rate is 2,553.6 GTexel/s for AMD and 120.0 GTexel/s for Intel. FP32 throughput is 81.72 TFLOPS for AMD and 7.680 TFLOPS for Intel. FP16 throughput is 653.7 TFLOPS (8:1) for AMD and 15.36 TFLOPS (2:1) for Intel.

Power specifications differ: AMD has a TDP of 750 W with a suggested PSU of 1150 W, while Intel has a TDP of 80 W with no suggested PSU. Slot width is OAM Module for AMD and IGP for Intel. Power connectors are None for both. Bus interface is PCIe 5.0 x16 for AMD and IGP for Intel. Display outputs are "No outputs" for AMD and "Portable Device Dependent" for Intel.

API support differs: AMD has no recorded values for DirectX, OpenGL, or Vulkan. Intel supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Production status is null for AMD and Active for Intel. Release dates differ: AMD was released on 2023-12-05, while Intel was released on 2026-01-26. Predecessors differ: AMD's predecessor is FirePro Data Center, while Intel's predecessor is HD Graphics-WM.

The Verdict

The AMD Radeon Instinct MI300A is designed for high-throughput compute workloads in data center environments. Its 81.72 TFLOPS FP32, 653.7 TFLOPS FP16, 192 GB HBM3 memory, and 10.3 TB/s bandwidth indicate a part built for large-scale numerical processing. The 750 W TDP and OAM Module slot width confirm this is a server-oriented accelerator with no display output capability. The 153,000 million transistors on a 1017 mm² die represent a massive silicon investment aimed at sustained parallel compute.

The Intel Arc Pro B390 is a low-power integrated graphics solution. Its 80 W TDP, IGP slot width, and System Shared memory indicate it is embedded into a processor package and draws from host memory. The 7.680 TFLOPS FP32 and 15.36 TFLOPS FP16 are modest figures suited to lightweight graphics and compute tasks. The 12 RT cores and display outputs show it supports rendering workloads and portable device displays, which the AMD part cannot do.

Benchmark results do not exist for either product in the database, so the verdict rests on architectural and specification data. The AMD Radeon Instinct MI300A is the appropriate choice for compute-intensive data center tasks requiring massive memory bandwidth and raw FP32 or FP16 throughput. The Intel Arc Pro B390 is the appropriate choice for integrated graphics scenarios where power efficiency, portability, and display output are required, and where the host system provides shared memory.

The release dates place the AMD part in 2023 and the Intel part in 2026, indicating the Intel product is newer and uses a more advanced 3 nm process. However, the AMD part's larger die and transistor count give it a substantial theoretical compute advantage. The AMD part has no recorded API support, while the Intel part supports current DirectX, OpenGL, and Vulkan versions, making the Intel part more suitable for software ecosystems that depend on those APIs.

The data supports a clear division: the AMD Radeon Instinct MI300A is a dedicated compute accelerator with no display path, while the Intel Arc Pro B390 is an integrated GPU with display support and modern API coverage. Users with data center compute needs should select the AMD part. Users with integrated graphics needs should select the Intel part. No benchmark data exists to alter this assessment.