AMD Radeon RX 6550S vs NVIDIA N1X 48SM Comparison

Head-to-Head Benchmarks

The recorded database contains no direct head-to-head benchmark results for the AMD Radeon RX 6550S versus the NVIDIA N1X 48SM. Both entries carry an average benchmark score of 0 and a percentile rank of 50 against all GPUs, which places them at the exact same position in the overall distribution. Without measured frame-rate comparisons, synthetic scores, or application-level results, the data cannot confirm a performance winner in any specific workload. What the database does provide is a full set of architectural specifications, and those specifications indicate a massive theoretical performance gap in favor of the NVIDIA part.

The FP32 compute figures illustrate the scale of the difference. The AMD Radeon RX 6550S delivers 4.915 TFLOPS of single-precision compute, while the NVIDIA N1X 48SM delivers 28.83 TFLOPS. That is roughly 5.87 times the raw FP32 throughput. In FP16 workloads, the AMD part reaches 9.830 TFLOPS using a 2:1 ratio, while the NVIDIA part sustains 28.83 TFLOPS at a 1:1 ratio, meaning the NVIDIA GPU does not halve its throughput when switching to half-precision. Texture rate follows the same pattern: the RX 6550S renders 153.6 GTexel/s, whereas the N1X 48SM achieves 900.9 GTexel/s, a multiplier of approximately 5.87. Pixel rate is less lopsided but still favors NVIDIA, with 76.80 GPixel/s for AMD against 112.6 GPixel/s for NVIDIA.

Memory bandwidth also favors the NVIDIA part substantially. The RX 6550S has 128.0 GB/s of bandwidth across a 64-bit bus, while the N1X 48SM has 273.2 GB/s across a 256-bit bus. That is roughly 2.13 times the bandwidth. The NVIDIA part also carries 128 GB of LPDDR5X memory versus 4 GB of GDDR6 on the AMD part, a 32-fold difference in capacity. None of these figures translate into a direct benchmark win because no head-to-head results exist, but the specification deltas are so large that the data strongly implies the NVIDIA part dominates in compute-heavy and memory-heavy scenarios.

Architecture Differences

The two GPUs come from different manufacturers, different architectures, and different process nodes. AMD uses the Navi 24 chip built on RDNA 2.0, produced by TSMC on a 6 nm process. The NVIDIA N1X 48SM uses the GB20B chip built on Blackwell 2.0, also produced by TSMC but on a 5 nm node. The AMD part belongs to the Navi Mobile generation within the RX 6000M family, while the NVIDIA part belongs to the Blackwell IGP (N1x) generation. The release dates differ by years: the RX 6550S launched on January 3, 2023, and the N1X 48SM launched on May 31, 2026.

The transistor counts and die sizes tell a story of very different design targets. AMD lists 5,400 million transistors on a 107 mm² die, yielding a transistor density of 50.5 million transistors per square millimeter. NVIDIA does not disclose its transistor count, but the die is 382 mm², which is roughly 3.57 times larger than the AMD die. The larger die area alone suggests a much more complex GPU with far more functional units.

Shading resources differ by a factor of six. The RX 6550S has 1024 shading units, 64 texture mapping units, and 32 ROPs. The N1X 48SM has 6144 shading units, 384 texture mapping units, and 48 ROPs. That is 6 times the shading units, 6 times the TMUs, and 1.5 times the ROPs. The NVIDIA part also includes 192 tensor cores and 48 ray tracing cores, while the AMD part has 16 ray tracing cores and no tensor core entry in the database. The ray tracing core count is 3 times higher on NVIDIA, and the tensor core presence gives NVIDIA a dedicated path for AI and machine learning workloads that the AMD part lacks entirely.

Clock behavior differs as well. The AMD GPU runs at a 2000 MHz base clock, a 2400 MHz boost clock, and a 2170 MHz game clock. The NVIDIA GPU runs at a much lower 741 MHz base clock but boosts to 2346 MHz, very close to the AMD boost figure. The NVIDIA part has no game clock listed. Memory clocks also diverge: AMD uses 2000 MHz with 16 Gbps effective data rate, while NVIDIA uses 1067 MHz with 8.5 Gbps effective. Despite the lower memory clock, NVIDIA achieves higher bandwidth because of the wider 256-bit bus.

API support differs sharply. The AMD part supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The NVIDIA part lists N/A for DirectX, OpenGL, and Vulkan, which suggests the database records no API compatibility details for that GPU. The bus interface also differs: AMD uses PCIe 4.0 x4, while NVIDIA uses PCIe 5.0 x16, giving NVIDIA 8 times the lane count on a newer standard.

The Verdict

The data points to a clear split between the two GPUs. The AMD Radeon RX 6550S is a low-power, small-die mobile part with a 50 W TDP, no power connectors, and an integrated form factor. The NVIDIA N1X 48SM is a much larger, higher-spec Blackwell IGP with 128 GB of memory, 6144 shading units, and 28.83 TFLOPS of FP32 compute. Every compute metric in the database favors NVIDIA by a wide margin: FP32 is roughly 5.87 times higher, texture rate is roughly 5.87 times higher, memory bandwidth is roughly 2.13 times higher, and memory capacity is 32 times higher.

The AMD part does hold advantages in a few specific areas. Its process node is slightly older at 6 nm versus 5 nm, but it achieves a much higher transistor density at 50.5 million transistors per square millimeter. Its base clock of 2000 MHz is far above the NVIDIA base clock of 741 MHz. Its memory runs at a higher effective data rate of 16 Gbps versus 8.5 Gbps. Its boost clock of 2400 MHz is slightly higher than the NVIDIA boost of 2346 MHz. Its game clock of 2170 MHz is a feature the NVIDIA part does not list.

However, those clock advantages do not compensate for the sheer difference in hardware resources. The NVIDIA part has 6 times the shading units, 6 times the TMUs, 3 times the ray tracing cores, and a 256-bit memory bus versus 64-bit. The RX 6550S is better understood as a power-efficient integrated solution for thin-and-light portable systems, while the N1X 48SM is positioned as a high-end integrated GPU with workstation-class memory capacity and compute throughput.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The NVIDIA N1X 48SM delivers 28.83 TFLOPS of FP32 compute, which is roughly 5.87 times the 4.915 TFLOPS of the AMD Radeon RX 6550S.

Q: How much memory does each GPU have?

A: The AMD Radeon RX 6550S has 4 GB of GDDR6 memory on a 64-bit bus, while the NVIDIA N1X 48SM has 128 GB of LPDDR5X memory on a 256-bit bus.

Q: What are the memory bandwidth figures?

A: The AMD part achieves 128.0 GB/s, and the NVIDIA part achieves 273.2 GB/s, which is roughly 2.13 times higher.

Q: Do both GPUs support ray tracing?

A: Yes. The AMD Radeon RX 6550S has 16 ray tracing cores, and the NVIDIA N1X 48SM has 48 ray tracing cores.

Q: What process nodes are used?

A: The AMD Radeon RX 6550S uses TSMC's 6 nm process, and the NVIDIA N1X 48SM uses TSMC's 5 nm process.

Q: Which GPU has tensor cores?

A: Only the NVIDIA N1X 48SM lists tensor cores, with 192 units. The AMD Radeon RX 6550S has no tensor core entry in the database.

Where Each One Wins

The AMD Radeon RX 6550S wins on power efficiency metrics and clock speeds. Its 50 W TDP is the only TDP figure listed in the database, while the NVIDIA part lists its TDP as unknown. The AMD GPU's base clock of 2000 MHz is more than double the NVIDIA base clock of 741 MHz, which indicates the AMD part sustains higher frequencies at idle or low load. Its boost clock of 2400 MHz edges out the NVIDIA boost of 2346 MHz. Its game clock of 2170 MHz is a listed feature that NVIDIA does not provide. The AMD die is also much smaller at 107 mm² versus 382 mm², and its transistor density of 50.5 million transistors per square millimeter is a listed advantage.

The NVIDIA N1X 48SM wins on every major compute throughput metric. FP32 performance is 28.83 TFLOPS versus 4.915 TFLOPS. FP16 performance is 28.83 TFLOPS versus 9.830 TFLOPS, and critically, NVIDIA sustains this at a 1:1 ratio while AMD drops to 2:1. Texture rate is 900.9 GTexel/s versus 153.6 GTexel/s. Pixel rate is 112.6 GPixel/s versus 76.80 GPixel/s. Memory bandwidth is 273.2 GB/s versus 128.0 GB/s. Memory capacity is 128 GB versus 4 GB. The NVIDIA part has 192 tensor cores, 48 ray tracing cores, and a PCIe 5.0 x16 interface, while AMD has no tensor cores, 16 ray tracing cores, and PCIe 4.0 x4.

The use-case split is therefore straightforward. The AMD part suits constrained portable designs where power draw, die size, and integrated packaging matter more than raw throughput. The NVIDIA part suits workloads that demand massive memory capacity, high FP32 and FP16 throughput, tensor core acceleration, and wide memory bandwidth. The database does not include benchmark scores to confirm real-world performance, but the specification differences are decisive in every throughput category.

Specification Differences

| Specification | AMD Radeon RX 6550S | NVIDIA N1X 48SM |

|---|---|---|

| Manufacturer | AMD | NVIDIA |

| Chip | Navi 24 | GB20B |

| Architecture | RDNA 2.0 | Blackwell 2.0 |

| Generation | Navi Mobile (RX 6000M) | Blackwell IGP (N1x) |

| Process Node | 6 nm | 5 nm |

| Foundry | TSMC | TSMC |

| Die Size | 107 mm² | 382 mm² |

| Transistor Density | 50.5M / mm² | Not listed |

| Base Clock | 2000 MHz | 741 MHz |

| Boost Clock | 2400 MHz | 2346 MHz |

| Game Clock | 2170 MHz | Not listed |

| Memory Clock | 2000 MHz, 16 Gbps effective | 1067 MHz, 8.5 Gbps effective |

| Memory Size | 4 GB | 128 GB |

| Memory Type | GDDR6 | LPDDR5X |

| Memory Bus Width | 64 bit | 256 bit |

| Memory Bandwidth | 128.0 GB/s | 273.2 GB/s |

| Shading Units | 1024 | 6144 |

| TMUs | 64 | 384 |

| ROPs | 32 | 48 |

| Ray Tracing Cores | 16 | 48 |

| Tensor Cores | Not listed | 192 |

| Pixel Rate | 76.80 GPixel/s | 112.6 GPixel/s |

| Texture Rate | 153.6 GTexel/s | 900.9 GTexel/s |

| FP32 Compute | 4.915 TFLOPS | 28.83 TFLOPS |

| FP16 Compute | 9.830 TFLOPS (2:1) | 28.83 TFLOPS (1:1) |

| TDP | 50 W | Unknown |

| Slot Width | IGP | IGP |

| Power Connectors | None | None |

| Bus Interface | PCIe 4.0 x4 | PCIe 5.0 x16 |

| Display Outputs | Portable Device Dependent | 1x HDMI |

| DirectX | 12 Ultimate (12_2) | N/A |

| OpenGL | 4.6 | N/A |

| Vulkan | 1.4 | N/A |

| Release Date | 2023-01-03 | 2026-05-31 |

| Percentile vs All GPUs | 50 | 50 |

| Average Benchmark Score | 0 | 0 |