AMD Radeon RX 9050 vs NVIDIA N1 20SM Comparison

# AMD Radeon RX 9050 vs NVIDIA N1 20SM: Two Different Interpretations of a GPU

The database contains two active graphics processors that share a PCIe 5.0 x16 interface but otherwise represent divergent design philosophies. The AMD Radeon RX 9050 is a discrete, dual-slot add-in card built on RDNA 4.0 with a 4 nm process, while the NVIDIA N1 20SM is an integrated graphics processor (IGP) on Blackwell 2.0 using a 5 nm process. Their benchmark scores are both recorded at the 50th percentile among all GPUs, and neither has an average benchmark score above zero, so the comparison must rely on architectural specifications and theoretical peak rates rather than measured application performance.

Where Each One Wins

The AMD Radeon RX 9050 wins in several categories that favor traditional discrete rendering workloads. Its pixel rate of 166.4 GPixel/s is nearly three times the N1 20SM's 56.30 GPixel/s, which indicates a strong advantage in fill-rate-bound scenarios such as high-resolution rasterization with heavy overdraw. The RX 9050 also achieves a texture rate of 166.4 GTexel/s, though here the N1 20SM counters with 375.4 GTexel/s, more than double. The AMD card's memory bandwidth of 288.0 GB/s edges out the N1's 273.2 GB/s, a modest but real lead for bandwidth-sensitive workloads.

The NVIDIA N1 20SM wins in compute-oriented categories. Its FP32 throughput of 12.01 TFLOPS exceeds the RX 9050's 10.65 TFLOPS, and its FP16 rate matches at 12.01 TFLOPS (1:1) versus the AMD part's 10.65 TFLOPS (1:1). The N1 also carries 80 tensor cores and 20 RT cores, while the RX 9050 specifies 16 RT cores and no tensor core count. The N1's shading unit count of 2560 is 2.5 times the RX 9050's 1024, and its 160 texture mapping units dwarf the AMD card's 64.

Memory capacity is a clear win for NVIDIA: 128 GB of LPDDR5X on a 256-bit bus versus 8 GB of GDDR6 on a 128-bit bus. The RX 9050's 4 nm process node from TSMC contrasts with the N1's 5 nm process, and its transistor density of 149.2M per mm² on a 199 mm² die (29,700 million transistors) stands against the N1's larger 382 mm² die with unknown transistor count. The RX 9050's power envelope is specified at 92 W TDP with a suggested 250 W PSU, while the N1's TDP is unknown and it uses no power connectors as an IGP.

Architecture Differences

The two chips come from different architectural generations. The RX 9050 uses RDNA 4.0, the latest iteration of AMD's graphics architecture, built on a 4 nm TSMC process. The N1 20SM uses Blackwell 2.0, NVIDIA's current architecture, on a 5 nm TSMC process. The process node difference is small but measurable: 4 nm versus 5 nm, both from TSMC.

The die sizes tell a different story. The RX 9050's Navi 44 chip measures 199 mm² and packs 29,700 million transistors at a density of 149.2 million per square millimeter. The N1 20SM's GB20B chip is 382 mm², nearly double the area, but its transistor count is listed as unknown, so density cannot be calculated. The larger die suggests a more complex design, likely reflecting the N1's integrated nature and its 128 GB memory controller.

Memory architecture diverges sharply. The RX 9050 uses 8 GB of GDDR6 on a 128-bit bus, yielding 288.0 GB/s bandwidth. The N1 20SM uses 128 GB of LPDDR5X on a 256-bit bus, yielding 273.2 GB/s. The N1's bus width is double, but its memory clock of 1067 MHz (8.5 Gbps effective) is lower than the RX 9050's 2250 MHz (18 Gbps effective). The bandwidth result is close, with AMD leading by 14.8 GB/s.

The RX 9050's clock speeds are substantially higher: base 1330 MHz, boost 2600 MHz, and a game clock of 1920 MHz. The N1 operates at a base of 741 MHz and boost of 2346 MHz, with no game clock specified. The AMD part compensates for fewer cores with higher clocks. The RX 9050's 1024 shading units at 2600 MHz boost produce 10.65 TFLOPS FP32, while the N1's 2560 shading units at 2346 MHz produce 12.01 TFLOPS.

API support differs completely. The RX 9050 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1 20SM lists N/A for DirectX, OpenGL, and Vulkan, suggesting it may target a different software stack or rely on proprietary interfaces. This is a critical differentiator for compatibility with existing games and applications.

Head-to-Head Benchmarks

The database records no head-to-head benchmark results between these two parts, and both have zero wins in the winsA and winsB fields. Their average benchmark scores are both zero, and their percentile versus all GPUs is identical at 50. This absence of measured data means the comparison must be built from theoretical specifications.

The most decisive lead for the AMD RX 9050 is pixel throughput. At 166.4 GPixel/s, it is 2.95 times the N1's 56.30 GPixel/s. This difference would manifest in scenarios where the render target is large and the scene has many overlapping primitives. The RX 9050 also leads in memory bandwidth by 14.8 GB/s, a 5.4% advantage that could matter in texture-heavy or compute-intensive workloads that saturate memory.

The NVIDIA N1 20SM's strongest lead is texture rate. At 375.4 GTexel/s, it is 2.26 times the RX 9050's 166.4 GTexel/s. This suggests the N1 can sample and filter textures much faster, which benefits shader-heavy effects and anisotropic filtering. The N1 also leads in FP32 compute by 1.36 TFLOPS (12.01 versus 10.65), a 12.8% advantage for general-purpose compute or physics simulations.

The N1's 128 GB memory capacity is 16 times the RX 9050's 8 GB. For workloads that require large datasets resident in GPU memory, such as machine learning inference or large-scale rendering scenes, this is a massive practical advantage. The RX 9050's 8 GB would be a limiting factor for such use cases.

The RT core count favors NVIDIA: 20 RT cores versus AMD's 16. The N1 also has 80 tensor cores, which the RX 9050 lacks entirely. These features position the N1 for ray tracing and AI-accelerated workloads, while the RX 9050's lack of tensor cores means it cannot accelerate those specific operations.

FAQ

Q: Which GPU has higher pixel fill rate?

A: The AMD Radeon RX 9050 has a pixel rate of 166.4 GPixel/s, which is 2.95 times higher than the NVIDIA N1 20SM's 56.30 GPixel/s.

Q: How do the memory capacities differ?

A: The NVIDIA N1 20SM has 128 GB of LPDDR5X on a 256-bit bus, while the AMD Radeon RX 9050 has 8 GB of GDDR6 on a 128-bit bus. The N1's capacity is 16 times larger.

Q: Which GPU provides higher FP32 compute throughput?

A: The NVIDIA N1 20SM delivers 12.01 TFLOPS FP32, which is 12.8% higher than the AMD Radeon RX 9050's 10.65 TFLOPS.

Q: What are the API support differences?

A: The AMD Radeon RX 9050 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The NVIDIA N1 20SM lists N/A for DirectX, OpenGL, and Vulkan.

Q: Which GPU has more texture mapping units?

A: The NVIDIA N1 20SM has 160 TMUs, which is 2.5 times the AMD Radeon RX 9050's 64 TMUs. This gives the N1 a texture rate of 375.4 GTexel/s versus 166.4 GTexel/s.

Q: What is the memory bandwidth comparison?

A: The AMD Radeon RX 9050 has 288.0 GB/s bandwidth, which is 14.8 GB/s higher than the NVIDIA N1 20SM's 273.2 GB/s.

Specification Differences

The two GPUs differ in nearly every physical and logical specification. The RX 9050 uses a 4 nm process, while the N1 uses 5 nm, both from TSMC. The RX 9050's die is 199 mm² with 29,700 million transistors at 149.2M per mm² density; the N1's die is 382 mm² with unknown transistor count and density.

Clock speeds favor AMD: base 1330 MHz, boost 2600 MHz, and game 1920 MHz versus NVIDIA's base 741 MHz and boost 2346 MHz. The AMD memory clock is 2250 MHz (18 Gbps effective) versus NVIDIA's 1067 MHz (8.5 Gbps effective). Bus widths differ: 128-bit for AMD, 256-bit for NVIDIA. Memory type differs: GDDR6 versus LPDDR5X.

Compute units differ: AMD has 1024 shading units, 64 TMUs, 64 ROPs, and 16 RT cores. NVIDIA has 2560 shading units, 160 TMUs, 24 ROPs, 20 RT cores, and 80 tensor cores. The RX 9050's pixel rate is 166.4 GPixel/s versus 56.30 GPixel/s for the N1. Texture rates are 166.4 GTexel/s versus 375.4 GTexel/s. FP32 is 10.65 TFLOPS versus 12.01 TFLOPS.

Power and physical specs: the RX 9050 has a 92 W TDP, is dual-slot, and uses a 1x 8-pin power connector with a suggested 250 W PSU. The N1 has unknown TDP, is an IGP, and uses no power connectors. Display outputs: the RX 9050 has 1x HDMI 2.1b and 2x DisplayPort 2.1a; the N1 has 1x HDMI. The RX 9050 supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4; the N1 lists N/A for all three.

Release dates differ: the RX 9050 released on 2026-07-27, and the N1 on 2026-05-31. The RX 9050's predecessor is Navi III, while the N1 has no predecessor listed. Neither has a successor listed.

The Verdict

The data presents two GPUs optimized for different roles. The AMD Radeon RX 9050 is a discrete card with higher pixel throughput, higher clocks, and standard graphics API support. Its 166.4 GPixel/s and 288.0 GB/s bandwidth, combined with DirectX 12 Ultimate and Vulkan 1.4, make it suited for conventional gaming and rasterization workloads. The 92 W TDP and dual-slot form factor indicate a self-contained solution that fits into a standard desktop build with a 250 W PSU.

The NVIDIA N1 20SM is an integrated processor with a 382 mm² die, 128 GB of LPDDR5X memory, and 80 tensor cores. Its 12.01 TFLOPS FP32 and 375.4 GTexel/s texture rate indicate strong compute and texture processing, but the N/A API support suggests it may not run standard graphics applications. The 56.30 GPixel/s pixel rate is a clear weakness for fill-rate-bound scenarios.

Users requiring broad software compatibility and traditional display output should choose the RX 9050. It provides the pixel throughput and API coverage for mainstream graphics. Users needing large memory capacity, tensor core acceleration, and higher compute throughput should choose the N1 20SM, provided their software stack does not depend on DirectX, OpenGL, or Vulkan. The absence of measured benchmark scores means these conclusions rest on architectural specifications, and real-world performance could shift the balance.