AMD Instinct MI300A vs AMD Radeon RX 9050 OEM Comparison

Head-to-Head Benchmarks

The recorded database contains no head-to-head benchmark entries for the AMD Instinct MI300A versus the AMD Radeon RX 9050 OEM. Both products have an average benchmark score of 0 and a percentile ranking of 50 among all GPUs in the database. The wins counter shows 0 for each side, meaning no direct comparison data exists to establish a performance hierarchy.

The absence of benchmark data does not indicate parity. The two accelerators occupy entirely different segments of the product stack, and the recorded specifications alone reveal the scale of separation. The MI300A delivers 61.29 TFLOPS of FP32 compute, while the RX 9050 OEM delivers 10.65 TFLOPS. That difference translates to roughly 5.8 times the raw single-precision throughput for the MI300A, a figure derived directly from the recorded numbers. The texture rate follows a similar pattern: 1,915.2 GTexel/s for the MI300A versus 166.4 GTexel/s for the RX 9050 OEM, a gap of approximately 11.5 times.

The RX 9050 OEM counters with features the MI300A lacks entirely. Pixel rate stands at 166.4 GPixel/s for the RX 9050 OEM, while the MI300A records 0 MPixel/s. The MI300A has 0 ROPs and no display outputs, whereas the RX 9050 OEM includes 64 ROPs and outputs through 1x HDMI 2.1b and 2x DisplayPort 2.1a. DirectX support is N/A for the MI300A, while the RX 9050 OEM supports DirectX 12 Ultimate (12_2). OpenGL support is N/A versus 4.6, and Vulkan support is N/A versus 1.4. For any graphics rendering workload, the RX 9050 OEM is the only option with functional capabilities.

FAQ

Q: Which product has higher FP32 compute throughput?

A: The AMD Instinct MI300A records 61.29 TFLOPS of FP32 performance, compared to 10.65 TFLOPS for the AMD Radeon RX 9050 OEM.

Q: Does the MI300A support DirectX?

A: No. The MI300A lists DirectX as N/A, along with OpenGL and Vulkan. The RX 9050 OEM supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What is the memory configuration difference?

A: The MI300A uses 128 GB of HBM3 across an 8192-bit bus, yielding 5.32 TB/s bandwidth. The RX 9050 OEM uses 4 GB of GDDR6 across a 64-bit bus, yielding 144.0 GB/s bandwidth.

Q: Which product has a smaller physical footprint?

A: The RX 9050 OEM uses a 199 mm² die with 29,700 million transistors on a 4 nm process. The MI300A uses a 1017 mm² die with 153,000 million transistors on a 5 nm process. The RX 9050 OEM also uses a Dual-slot form factor, while the MI300A uses an OAM Module.

Q: Are there any display outputs on the MI300A?

A: No. The MI300A records no display outputs. The RX 9050 OEM includes 1x HDMI 2.1b and 2x DisplayPort 2.1a.

Q: What is the transistor density relationship between the two?

A: The MI300A has a transistor density of 150.4M per mm², and the RX 9050 OEM has 149.2M per mm². Despite the MI300A's larger die and older 5 nm node, the densities are nearly identical.

Architecture Differences

The MI300A uses the CDNA 3.0 architecture on the Aqua Vanjaram chip, built at 5 nm with 153,000 million transistors across a 1017 mm² die. The RX 9050 OEM uses the RDNA 4.0 architecture on the Navi 44 chip, built at 4 nm with 29,700 million transistors across a 199 mm² die. Both are manufactured by TSMC, but the process node differs: 5 nm versus 4 nm. The transistor density difference is marginal, 150.4M per mm² versus 149.2M per mm², which means the MI300A achieves density parity despite the larger, older process.

The shading unit count separates the two dramatically. The MI300A has 14,592 shading units, 912 TMUs, and 0 ROPs. The RX 9050 OEM has 1,024 shading units, 64 TMUs, and 64 ROPs. The MI300A also has 16 ray tracing cores, while the MI300A lists none. The MI300A has no pixel rate, while the RX 9050 OEM produces 166.4 GPixel/s. The MI300A's texture rate of 1,915.2 GTexel/s dwarfs the RX 9050 OEM's 166.4 GTexel/s, but the RX 9050 OEM's ROP count enables actual rasterization work.

Memory architecture differs fundamentally. The MI300A uses 128 GB of HBM3 with an 8192-bit bus and 5.32 TB/s bandwidth. The RX 9050 OEM uses 4 GB of GDDR6 with a 64-bit bus and 144.0 GB/s bandwidth. The memory clock also differs: 1300 MHz (5.2 Gbps effective) for the MI300A versus 2250 MHz (18 Gbps effective) for the RX 9050 OEM. The RX 9050 OEM's memory runs at a higher effective speed, but the MI300A's bus width and capacity provide vastly greater aggregate throughput.

The power envelope separates the products further. The MI300A has a TDP of 750 W and requires a suggested PSU of 1150 W. The RX 9050 OEM has a TDP of 92 W and a suggested PSU of 250 W. The MI300A has no power connectors, as it uses an OAM Module interface; the RX 9050 OEM uses a single 8-pin connector. The MI300A uses the PCIe 5.0 x16 bus interface, and the RX 9050 OEM uses the same interface.

The MI300A's release date is 2023-12-05, and the RX 9050 OEM's release date is 2026-07-27. The RX 9050 OEM has a production status of Active, while the MI300A's production status is not recorded. The predecessor for the MI300A is Radeon Instinct, and the predecessor for the RX 9050 OEM is Navi III.

The Verdict

The data indicates two products with no overlap in intended function. The MI300A is a compute accelerator with no graphics output, no rasterization pipeline, and no graphics API support. The RX 9050 OEM is a graphics card with full rendering capability, ray tracing cores, and display outputs. Benchmark results are absent for both, so the verdict must rest on architectural specifications.

For compute workloads, the MI300A holds every measurable advantage: 5.8 times the FP32 throughput, 11.5 times the texture rate, 32 times the memory capacity, 128 times the memory bus width, and 36.9 times the memory bandwidth. The 750 W TDP reflects the scale of the compute engine. For graphics workloads, the RX 9050 OEM is the only viable choice, as the MI300A cannot render frames, output video, or run graphics APIs.

The RX 9050 OEM's 16 ray tracing cores, 64 ROPs, and 166.4 GPixel/s pixel rate establish its graphics credentials. Its 10.65 TFLOPS FP32 and 10.65 TFLOPS FP16 (1:1 ratio) provide balanced compute for a dual-slot, 92 W card. The MI300A's FP16 figure is not recorded, so no comparison is possible there. The MI300A's 61.29 TFLOPS FP32 is the only compute figure available for it.

The transistor density parity, 150.4M versus 149.2M per mm², suggests both chips are near the practical limit of their respective processes. The MI300A achieves this density with a 5 nm node, while the RX 9050 OEM uses 4 nm. The MI300A's 153,000 million transistors versus the RX 9050 OEM's 29,700 million reflects the scale difference: the MI300A packs over 5 times the transistor count.

Neither product carries a launch MSRP in the database. The production status of the RX 9050 OEM is Active, while the MI300A's status is not recorded, which may indicate differing market availability.

Specification Differences

The two products differ in nearly every recorded specification category. The process node: 5 nm for the MI300A versus 4 nm for the RX 9050 OEM. The transistor count: 153,000 million versus 29,700 million. The die size: 1017 mm² versus 199 mm². The transistor density: 150.4M per mm² versus 149.2M per mm².

Clock speeds differ in both magnitude and structure. The MI300A has a base clock of 1000 MHz and a boost clock of 2100 MHz, with no game clock recorded. The RX 9050 OEM has a base clock of 1330 MHz, a boost clock of 2600 MHz, and a game clock of 1920 MHz. Memory clock: 1300 MHz (5.2 Gbps effective) for the MI300A versus 2250 MHz (18 Gbps effective) for the RX 9050 OEM.

Memory size: 128 GB versus 4 GB. Memory type: HBM3 versus GDDR6. Bus width: 8192 bit versus 64 bit. Bandwidth: 5.32 TB/s versus 144.0 GB/s. Shading units: 14,592 versus 1,024. TMUs: 912 versus 64. ROPs: 0 versus 64. Ray tracing cores: not recorded for the MI300A versus 16 for the RX 9050 OEM.

Pixel rate: 0 MPixel/s versus 166.4 GPixel/s. Texture rate: 1,915.2 GTexel/s versus 166.4 GTexel/s. FP32: 61.29 TFLOPS versus 10.65 TFLOPS. FP16: not recorded for the MI300A versus 10.65 TFLOPS (1:1). TDP: 750 W versus 92 W. Slot width: OAM Module versus Dual-slot. Power connectors: None versus 1x 8-pin. Suggested PSU: 1150 W versus 250 W.

Display outputs: No outputs versus 1x HDMI 2.1b and 2x DisplayPort 2.1a. DirectX: N/A versus 12 Ultimate (12_2). OpenGL: N/A versus 4.6. Vulkan: N/A versus 1.4. Release date: 2023-12-05 versus 2026-07-27. Production status: not recorded versus Active. Predecessor: Radeon Instinct versus Navi III. The bus interface is identical: PCIe 5.0 x16 for both.

Where Each One Wins

The MI300A wins in every compute density category. FP32 throughput: 61.29 TFLOPS versus 10.65 TFLOPS, a 5.8 times advantage. Texture rate: 1,915.2 GTexel/s versus 166.4 GTexel/s, an 11.5 times advantage. Memory capacity: 128 GB versus 4 GB, a 32 times advantage. Memory bandwidth: 5.32 TB/s versus 144.0 GB/s, a 36.9 times advantage. Transistor count: 153,000 million versus 29,700 million, a 5.2 times advantage. Die size: 1017 mm² versus 199 mm², a 5.1 times advantage. TDP: 750 W versus 92 W, meaning the MI300A consumes 8.2 times the power budget.

The RX 9050 OEM wins in every graphics-specific category. Pixel rate: 166.4 GPixel/s versus 0 MPixel/s. ROPs: 64 versus 0. Ray tracing cores: 16 versus none recorded. Display outputs: 1x HDMI 2.1b and 2x DisplayPort 2.1a versus no outputs. Graphics API support: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4 versus N/A for all three. The RX 9050 OEM also wins on clock speed: base 1330 MHz versus 1000 MHz, boost 2600 MHz versus 2100 MHz, and it has a game clock of 1920 MHz that the MI300A does not record. Memory clock: 2250 MHz (18 Gbps effective) versus 1300 MHz (5.2 Gbps effective). Power efficiency: the RX 9050 OEM delivers 10.65 TFLOPS at 92 W, while the MI300A delivers 61.29 TFLOPS at 750 W.

The RX 9050 OEM also wins on form factor practicality. It uses a Dual-slot layout with a single 8-pin connector and a 250 W suggested PSU. The MI300A uses an OAM Module with no power connectors and requires a 1150 W suggested PSU. The RX 9050 OEM has an Active production status, while the MI300A's status is not recorded. The RX 9050 OEM is also newer, with a release date of 2026-07-27 versus 2023-12-05 for the MI300A.

The transistor density is effectively a tie: 150.4M per mm² for the MI300A versus 149.2M per mm² for the RX 9050 OEM. The MI300A gets a marginal 0.8% advantage, but the difference is within rounding of the recorded values. Both products use PCIe 5.0 x16, so bus connectivity is identical. Neither product has a recorded launch MSRP, so no cost comparison is possible from the data.

The benchmark database shows no head-to-head results, no wins for either side, and no average benchmark scores above zero. The specification data provides the complete picture: the MI300A is a compute accelerator optimized for throughput and memory capacity, while the RX 9050 OEM is a graphics card optimized for rendering, display output, and API compatibility. Each product wins decisively in its own domain, and neither can substitute for the other.