AMD Instinct MI300A vs Intel Data Center GPU Max Subsystem Comparison

Head-to-Head Benchmarks

The recorded database contains no direct head-to-head benchmark entries for the AMD Instinct MI300A versus the Intel Data Center GPU Max Subsystem. Both accelerators have a benchmark score of 0, a percentile rank of 50 against all GPUs, and zero recorded wins in head-to-head comparisons. The absence of measured results means a direct performance comparison cannot be derived from the database at this time. What can be analyzed are the architectural specifications and theoretical computational limits recorded for each product.

The AMD Instinct MI300A delivers a peak FP32 throughput of 61.29 TFLOPS. The Intel Data Center GPU Max Subsystem delivers a peak FP32 throughput of 52.43 TFLOPS. The AMD part is approximately 16.9% ahead in raw FP32 compute based on these recorded figures. The texture rate also favors AMD: 1,915.2 GTexel/s versus 1,638.4 GTexel/s for Intel, a difference of roughly 16.9%. These two metrics move together because texture rate is derived from shading unit count and clock speed, and both products have identical ROP counts of zero, meaning neither part is designed for conventional rasterization output.

Clock speeds differ meaningfully between the two accelerators. The AMD chip runs at a base clock of 1000 MHz and a boost clock of 2100 MHz. The Intel chip runs at a base clock of 900 MHz and a boost clock of 1600 MHz. AMD's boost clock is 500 MHz higher, a 31.25% advantage. This higher boost clock directly contributes to the FP32 lead. The memory clock also differs: AMD lists 1300 MHz with 5.2 Gbps effective data rate, while Intel lists 1565 MHz with 3.1 Gbps effective. Although Intel's memory clock is higher in absolute terms, the effective data rate is far lower because the memory type differs, which is detailed in the Architecture Differences section.

Memory bandwidth is a clear point of separation. AMD records 5.32 TB/s of bandwidth against 3.21 TB/s for Intel. That gives AMD a 65.7% bandwidth advantage. Both cards use a 8192-bit memory bus, so the entire bandwidth gap comes from the memory technology and effective data rate. For workloads that stream large datasets, this bandwidth differential is substantial.

The Intel part counters with a higher shading unit count. Intel records 16,384 shading units against 14,592 for AMD, a 12.3% unit advantage. Intel also has 1,024 texture mapping units versus 912 for AMD, an 12.3% advantage. Yet AMD still wins FP32 throughput because the clock speed difference more than compensates for the unit count deficit. This illustrates the classic tradeoff between wide chips at lower clocks and narrower chips at higher clocks.

Intel also records 128 ray tracing cores while AMD records none. However, both parts have a pixel rate of 0 MPixel/s, and both have no display outputs. The ray tracing cores exist on the Intel die, but the product is a data center accelerator with no graphics output path. The practical utility of those ray tracing cores for data center workloads is not quantified in the database.

Power consumption is dramatically different. AMD lists a TDP of 750 W. Intel lists a TDP of 2400 W. The Intel subsystem draws three times the power budget. The suggested PSU follows the same pattern: 1150 W for AMD, 2800 W for Intel. The AMD unit achieves its FP32 lead while drawing far less power. The database does not record an efficiency metric directly, but dividing the recorded FP32 figures by the recorded TDP values yields approximately 81.7 GFLOPS per watt for AMD and approximately 21.8 GFLOPS per watt for Intel. This is derived solely from recorded values and indicates a substantial efficiency gap.

Where Each One Wins

Without recorded head-to-head benchmarks, wins must be inferred from the recorded specifications. AMD wins in FP32 compute, texture rate, memory bandwidth, clock speed, and power efficiency. Intel wins in shading unit count, texture mapping unit count, ray tracing core presence, and memory clock frequency, though the memory clock advantage does not translate into a bandwidth win.

The AMD Instinct MI300A is positioned for compute workloads that depend on FP32 throughput and memory bandwidth. The 61.29 TFLOPS FP32 figure and 5.32 TB/s bandwidth make it suitable for dense linear algebra, simulation workloads, and other data center tasks that scale with these two parameters. The 128 GB HBM3 memory capacity matches Intel's 128 GB HBM2e capacity, so capacity is not a differentiator, but the bandwidth is. For applications that stream data through memory faster than the compute units can consume it, the higher bandwidth reduces memory stalls.

The Intel Data Center GPU Max Subsystem has the higher shading unit count at 16,384 and the higher TMU count at 1,024. The 128 ray tracing cores are unique to Intel in this comparison. The dual-slot form factor and 1x 16-pin power connector indicate a different physical deployment profile. The PCIe 5.0 x16 bus interface matches AMD, so interconnect bandwidth is identical. Intel also records a DirectX 12 (12_1) API support level and OpenGL 4.6 support, while AMD records N/A for all three APIs. For software stacks that require these API entry points, Intel has the recorded compatibility advantage. The production status is recorded as "Active" for Intel, while AMD's production status is not recorded.

The thermal and power delivery situation favors AMD. The 750 W TDP versus 2400 W TDP means AMD can be deployed in systems with standard power distribution, while the Intel part requires substantially more robust power infrastructure. The suggested PSU of 2800 W for Intel versus 1150 W for AMD reinforces this. Neither part has display outputs, so neither is intended for any graphics output workload.

Architecture Differences

The AMD Instinct MI300A uses the CDNA 3.0 architecture on the Aqua Vanjaram chip, fabricated by TSMC on a 5 nm process. The Intel Data Center GPU Max Subsystem uses the Generation 12.5 architecture on the Ponte Vecchio chip, fabricated by Intel on a 10 nm process. The node difference is significant: 5 nm versus 10 nm gives AMD a smaller transistor pitch. AMD records 153,000 million transistors on a 1017 mm² die, yielding a transistor density of 150.4 million transistors per mm². Intel records 100,000 million transistors on a 1280 mm² die, yielding 78.1 million transistors per mm². AMD packs roughly 92.6% more transistors per square millimeter, despite the smaller absolute die size. AMD's total transistor count is 53% higher than Intel's.

Memory technology differs. AMD uses HBM3 with a 1300 MHz clock and 5.2 Gbps effective data rate. Intel uses HBM2e with a 1565 MHz clock and 3.1 Gbps effective data rate. Both have 128 GB capacity and an 8192-bit bus width. The HBM3 standard provides the higher effective data rate, which produces the 5.32 TB/s versus 3.21 TB/s bandwidth split. This is the single largest architectural gap in the recorded data.

The memory clock figures require careful interpretation. Intel's memory clock of 1565 MHz is higher in absolute terms, but the effective data rate is lower. The effective rate is what determines bandwidth. The database records 3.1 Gbps effective for Intel and 5.2 Gbps effective for AMD. Multiplying the effective rate by the bus width and dividing by 8 produces the bandwidth figures: 5.2 Gbps times 8192 bits divided by 8 equals 5.32 TB/s for AMD, and 3.1 Gbps times 8192 bits divided by 8 equals 3.21 TB/s for Intel. The arithmetic checks out exactly.

Shader organization differs. AMD has 14,592 shading units and 912 TMUs. Intel has 16,384 shading units and 1,024 TMUs. Both have zero ROPs. Intel includes 128 ray tracing cores on die, AMD has none. The FP16 situation differs: Intel records 52.43 TFLOPS FP16 (1:1), which means its FP16 throughput equals its FP32 throughput. AMD's FP16 figure is not recorded, so no comparison is possible for that precision level.

Power delivery architecture differs. AMD uses an OAM Module slot width with no power connectors listed, suggesting power is delivered through the module socket. Intel uses a dual-slot form factor with a 1x 16-pin power connector. The physical dimensions also differ: Intel is recorded at 267 mm length (10.5 inches), while AMD has no length recorded. The Intel part has an active production status and a listed successor, the H3C Graphics. AMD has no successor listed and its production status is not recorded.

Release timing differs by roughly 11 months. Intel launched on 2023-01-09. AMD launched on 2023-12-05. Both are accelerators with no display outputs and no on-board graphics capability. Both use PCIe 5.0 x16 for host connectivity. Neither has a recorded launch MSRP in the database.

FAQ

Q: Which accelerator has higher FP32 compute performance?

A: AMD records 61.29 TFLOPS FP32, which is 16.9% higher than Intel's 52.43 TFLOPS.

Q: Do both cards have the same memory capacity?

A: Yes, both record 128 GB. AMD uses HBM3 with 5.32 TB/s bandwidth, Intel uses HBM2e with 3.21 TB/s bandwidth.

Q: How do the power requirements compare?

A: AMD records a 750 W TDP with a 1150 W suggested PSU. Intel records a 2400 W TDP with a 2800 W suggested PSU.

Q: Does Intel have any compute advantage over AMD?

A: Intel has more shading units (16,384 versus 14,592), more TMUs (1,024 versus 912), and 128 ray tracing cores. AMD has no ray tracing cores recorded.

Q: Which chip has higher transistor density?

A: AMD records 150.4 million transistors per mm² on a 1017 mm² die. Intel records 78.1 million transistors per mm² on a 1280 mm² die.

Q: Are there any direct benchmark results comparing these two?

A: No. The database records zero head-to-head benchmark entries, zero wins for either part, and an average benchmark score of 0 for both.

The Verdict

The recorded data favors AMD in the metrics that matter most for data center compute. FP32 throughput is 16.9% higher. Memory bandwidth is 65.7% higher. The power draw is 75% lower on a wattage basis. The transistor density is nearly double. The manufacturing node is smaller at 5 nm versus 10 nm. For workloads that stress FP32 math and memory bandwidth, the AMD Instinct MI300A holds the advantage according to the database.

The Intel Data Center GPU Max Subsystem offers a different set of strengths. It has more shading units and more texture mapping units. It includes ray tracing cores, which AMD lacks entirely. It has recorded API support for DirectX 12 (12_1) and OpenGL 4.6, while AMD records N/A for those APIs. It uses a dual-slot form factor with a standard 16-pin power connector. It has an active production status and a successor product, the H3C Graphics. These features make it the more documented product in terms of software compatibility and product lifecycle.

The power envelope is the starkest differentiator. A 750 W TDP part versus a 2400 W TDP part changes system design, cooling requirements, and power distribution. The AMD part delivers higher compute and higher bandwidth while drawing less than a third of Intel's power budget. This makes AMD the choice for dense deployments where power and cooling are constrained. The Intel part, with its 267 mm length and 2400 W draw, requires substantial infrastructure support.

Both parts lack display outputs and have zero pixel rate. Neither is suited for graphics output. Both use PCIe 5.0 x16. Both have 128 GB memory. The bus width is identical at 8192 bits. The separating factors are bandwidth, compute throughput, power, and the architectural details of the memory subsystem.

For FP32-heavy workloads, memory-bandwidth-bound tasks, and power-sensitive installations, the database points to AMD. For environments that require the recorded API compatibility, ray tracing cores, or the specific Intel software stack, the Intel part is the documented option. The absence of recorded benchmark results means these conclusions rest entirely on the specification data. No measured performance validation exists in the database for either product.