AMD Instinct MI350X vs AMD Radeon RX 6550M Comparison

Head-to-Head Benchmarks

The database contains no shared benchmark results for the AMD Instinct MI350X and the AMD Radeon RX 6550M. The MI350X has no recorded benchmark scores, while the RX 6550M has two entries: a Geekbench OpenCL score of 42,536 and a Geekbench Vulkan score of 50,867. These scores place the RX 6550M at the 85th percentile among all GPUs in the database, with an average benchmark score of 46,702. The MI350X sits at the 50th percentile with an average score of 0, reflecting the absence of any measured workload data.

Without head-to-head results, direct performance comparisons cannot be quantified. The RX 6550M's nearest rivals show how tightly grouped its performance is: the Intel Arc A530M averages 46,614 (0.2% higher), the AMD Radeon RX 5600M averages 46,601 (0.2% higher), the NVIDIA RTX A2000 averages 46,043 (1.4% lower), and the NVIDIA RTX 5880 Ada Generation averages 45,972 (1.6% lower). These deltas indicate that the RX 6550M sits in a dense competitive cluster, with no rival more than 1.6% away.

The MI350X, by contrast, has no nearest rivals listed and no benchmark footprint. Its average score of 0 reflects that absence, not a performance floor. The data cannot show where it would land relative to the RX 6550M because no common test exists. The recorded facts only permit the conclusion that the RX 6550M has measurable compute and graphics throughput, while the MI350X has none in the database.

FAQ

Q: What benchmark scores does the AMD Radeon RX 6550M have?

A: The RX 6550M scores 42,536 in Geekbench OpenCL and 50,867 in Geekbench Vulkan, producing an average benchmark score of 46,702.

Q: How does the RX 6550M compare to its closest rivals?

A: The RX 6550M is 0.2% behind the Intel Arc A530M and the AMD Radeon RX 5600M, 1.4% ahead of the NVIDIA RTX A2000, and 1.6% ahead of the NVIDIA RTX 5880 Ada Generation.

Q: Does the AMD Instinct MI350X have any recorded benchmark scores?

A: No. The MI350X has an empty benchmarks list and an average benchmark score of 0, placing it at the 50th percentile among all GPUs.

Q: What is the MI350X's percentile ranking?

A: The MI350X sits at the 50th percentile versus all GPUs, a neutral position driven by the lack of measured data rather than a performance result.

Q: What is the RX 6550M's percentile ranking?

A: The RX 6550M ranks at the 85th percentile among all GPUs, indicating that its recorded scores place it above the majority of the database's entries.

Q: Are there any head-to-head benchmark results between these two cards?

A: No. The head-to-head benchmark list is empty, and the win counts for both cards are 0, so no direct comparison is possible from the available data.

Architecture Differences

The AMD Instinct MI350X uses the CDNA 4.0 architecture on a 3 nm process at TSMC, while the AMD Radeon RX 6550M uses the RDNA 2.0 architecture on a 6 nm process, also at TSMC. The MI350X's chip is designated MI350 256CU, and the RX 6550M's chip is Navi 24. These architectures target fundamentally different workloads: CDNA 4.0 is optimized for compute acceleration, while RDNA 2.0 is designed for graphics rendering.

Transistor counts differ enormously. The MI350X packs 185,000 million transistors on a die size of 2,380 mm², yielding a transistor density of 77.7 million per square millimeter. The RX 6550M contains 5,400 million transistors on a 107 mm² die, with a density of 50.5 million per square millimeter. The MI350X therefore has roughly 34 times more transistors on a die more than 22 times larger.

Memory subsystems are also divergent. The MI350X uses 288 GB of HBM3e across an 8,192-bit bus, delivering 8.19 TB/s of bandwidth. The RX 6550M uses 4 GB of GDDR6 on a 64-bit bus, providing 144.0 GB/s. The MI350X's memory bandwidth exceeds the RX 6550M's by a factor of nearly 57.

Shader resources scale similarly. The MI350X has 16,384 shading units and 1,024 texture mapping units, while the RX 6550M has 1,024 shading units and 64 TMUs. The MI350X has no ray tracing cores listed, whereas the RX 6550M includes 16 ray tracing cores. Neither card lists tensor cores.

Compute rates reflect the architectural focus. The MI350X delivers 72.09 TFLOPS of FP32 and 72.09 TFLOPS of FP16 at a 1:1 ratio, indicating that FP16 throughput is not doubled. The RX 6550M delivers 5.816 TFLOPS of FP32 and 11.63 TFLOPS of FP16 at a 2:1 ratio, meaning FP16 runs twice as fast as FP32. The MI350X's FP32 output is about 12.4 times higher, but the RX 6550M's FP16 advantage shows a consumer-oriented design where half-precision is accelerated.

The MI350X has no pixel rate (0 MPixel/s) and no ROPs, consistent with a compute accelerator that does not rasterize. The RX 6550M has 32 ROPs and a pixel rate of 90.88 GPixel/s. Texture rates also differ: the MI350X reaches 2,252.8 GTexel/s, while the RX 6550M reaches 181.8 GTexel/s.

API support separates the two completely. The MI350X lists DirectX, OpenGL, and Vulkan as N/A. The RX 6550M supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, making it a full graphics API implementation.

Specification Differences

Clock speeds differ in both base and boost. The MI350X has a base clock of 1,000 MHz and a boost clock of 2,200 MHz. The RX 6550M has a base clock of 2,000 MHz and a boost clock of 2,840 MHz, plus a game clock of 2,560 MHz. The RX 6550M runs at higher clocks despite its smaller die.

Memory clock also differs. The MI350X runs memory at 2,000 MHz with 8 Gbps effective speed. The RX 6550M runs memory at 2,250 MHz with 18 Gbps effective speed. The RX 6550M's memory clock is higher, but the MI350X's far wider bus and HBM3e type produce vastly greater bandwidth.

Power draw is a major separator. The MI350X has a TDP of 1,000 W and a suggested PSU of 1,400 W. The RX 6550M has a TDP of 80 W and no suggested PSU listed. The MI350X's power envelope is 12.5 times larger.

Physical form factors differ. The MI350X is an OAM module with dimensions of 102 mm in length and 165 mm in width, and it uses no power connectors. The RX 6550M is an IGP with no dimensions recorded and also uses no power connectors. Bus interfaces differ as well: the MI350X uses PCIe 5.0 x16, while the RX 6550M uses PCIe 4.0 x4.

Display outputs separate the two. The MI350X has no display outputs. The RX 6550M has display outputs that are portable device dependent. The MI350X is not a graphics output device; the RX 6550M is a mobile GPU meant to drive a screen.

Release dates differ by roughly two and a half years. The RX 6550M was released on 2023-01-03 and is marked as active in production. The MI350X was released on 2025-06-11 with no production status recorded. Their predecessors also differ: the MI350X follows the Radeon Instinct, and the RX 6550M follows Polaris Mobile.

The MI350X belongs to the Instinct (MIx) generation, while the RX 6550M belongs to the Navi Mobile (RX 6000M) generation within the Radeon RX 6000 series.

Where Each One Wins

The MI350X wins on raw compute scale. Its 72.09 TFLOPS of FP32 and FP16 (1:1) dwarfs the RX 6550M's 5.816 TFLOPS of FP32, and its 288 GB of HBM3e memory with 8.19 TB/s bandwidth provides a memory capacity and throughput that no mobile GPU can approach. The 16,384 shading units and 1,024 TMUs, combined with a 2,252.8 GTexel/s texture rate, position the MI350X for dense parallel compute workloads such as large-scale inference or scientific simulation. Its 3 nm process and 185,000 million transistors indicate a design optimized for maximum throughput per module, not for efficiency or portability.

The RX 6550M wins on graphics capability and practical deployability. It supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, enabling game and rendering workloads that the MI350X cannot handle due to its N/A API status. Its 16 ray tracing cores and 90.88 GPixel/s pixel rate indicate a rasterization pipeline that the MI350X completely lacks. The RX 6550M's 80 W TDP, 6 nm process, and IGP form factor make it suitable for mobile systems, whereas the MI350X's 1,000 W TDP and OAM module design require a server chassis with substantial power delivery.

Benchmark data reinforces the RX 6550M's niche. Its Geekbench OpenCL score of 42,536 and Vulkan score of 50,867 demonstrate measurable real-world performance in compute and graphics tests. The MI350X has no such data, so its wins are architectural and theoretical rather than empirical. The RX 6550M's 85th percentile ranking versus all GPUs indicates that it outperforms most recorded entries, while the MI350X's 50th percentile reflects the absence of results, not a mid-pack performance level.

In practical terms, the MI350X wins in any scenario requiring massive memory capacity, extreme FP32 throughput, or high-bandwidth data movement. The RX 6550M wins in scenarios requiring graphics output, API compatibility, ray tracing, low power draw, or a compact mobile form factor. Neither card can substitute for the other: the MI350X cannot render frames to a display, and the RX 6550M cannot match the MI350X's compute density or memory scale. The data indicates two specialized tools serving separate segments, with no overlap in their recorded specifications or benchmark footprints.